Aluminum Weight Calculator Download

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Aluminum Weight Calculator

Calculate the weight of aluminum quickly and accurately.

Aluminum Weight Calculator

1060 (Pure Aluminum) 3003 5052 6061 7075
Select the aluminum alloy to use its standard density.
Rectangular Prism (Plate, Bar) Cylinder (Rod, Tube) Hollow Tube (Round) Angle (L-Shape)
Choose the geometric shape of the aluminum piece.
Enter the length of the aluminum piece.
Enter the width of the aluminum piece.
Enter the thickness of the aluminum piece.
Enter the length of the cylinder.
Enter the diameter of the cylinder.
Enter the length of the tube.
Enter the outer diameter of the tube.
Enter the wall thickness of the tube.
Enter the length of the angle profile.
Enter the length of one leg of the angle.
Enter the thickness of the angle.
Millimeters (mm) Centimeters (cm) Meters (m) Inches (in) Feet (ft)
Select the unit for your dimensions.

Calculation Results

Volume:
Density:
Estimated Cost: (based on $X.XX/kg)

Key Assumptions

Assumed Density: kg/m³
Unit Conversion Factor:
Formula Used: Weight = Volume × Density. Volume is calculated based on the selected shape and dimensions.

Weight vs. Dimensions Comparison

Chart showing how weight changes with a key dimension (e.g., length) while others are held constant.

What is an Aluminum Weight Calculator?

{primary_keyword} is a specialized tool designed to help engineers, manufacturers, fabricators, and DIY enthusiasts quickly and accurately determine the weight of aluminum components based on their physical dimensions and the specific alloy type. Unlike generic weight calculators, this tool accounts for the varying densities of different aluminum alloys and supports various geometric shapes. Understanding the weight of aluminum is crucial for material estimation, cost calculation, structural design, shipping logistics, and ensuring compliance with weight limitations. This aluminum weight calculator download provides a convenient way to access this functionality without complex manual calculations.

Who Should Use It:

  • Engineers & Designers: For structural analysis, load calculations, and material selection.
  • Manufacturers & Fabricators: For accurate material ordering, production planning, and cost estimation.
  • Procurement Specialists: To budget for raw materials and manage inventory.
  • Logistics & Shipping Professionals: To determine shipping costs and ensure compliance with weight regulations.
  • Students & Educators: For learning about material properties and physics principles.
  • Hobbyists & DIYers: For projects involving aluminum fabrication.

Common Misconceptions:

  • "All aluminum weighs the same." This is false. Different aluminum alloys have distinct densities due to their varying compositions. For example, pure aluminum (1060) is less dense than high-strength alloys like 7075.
  • "Weight calculation is simple multiplication." While the core formula is Weight = Volume × Density, accurately calculating the volume for complex shapes or ensuring consistent units requires careful attention.
  • "Online calculators are always accurate." Accuracy depends on the calculator's design, the data it uses (especially density values), and the user's input precision. Our aluminum weight calculator download aims for high accuracy by using standard density values and clear unit handling.

Aluminum Weight Calculator Formula and Mathematical Explanation

The fundamental principle behind the aluminum weight calculator is the relationship between mass, volume, and density. The formula is straightforward:

Weight = Volume × Density

Let's break down each component:

1. Volume Calculation:

The volume (V) is calculated based on the shape and dimensions provided by the user. The calculator dynamically selects the appropriate formula:

  • Rectangular Prism (Plate, Bar): V = Length × Width × Thickness
  • Cylinder (Rod): V = π × (Diameter/2)² × Length
  • Hollow Tube (Round): V = π × ((Outer Diameter/2)² – (Inner Diameter/2)²) × Length. Note: Inner Diameter = Outer Diameter – 2 × Wall Thickness.
  • Angle (L-Shape): V = Area of Cross-section × Length. The cross-sectional area is calculated as (Leg Length × Thickness) + ((Leg Length – Thickness) × Thickness) for a standard angle, or more precisely as (Leg1 × Thickness) + ((Leg2 – Thickness) × Thickness) if leg lengths differ. For simplicity in this calculator, we use a common approximation: Area ≈ (2 × Leg Length – Thickness) × Thickness.

2. Density:

Density (ρ) is a material property that represents its mass per unit volume. Aluminum alloys have different densities. The calculator uses standard approximate values, which can vary slightly based on manufacturing processes and specific compositions.

3. Unit Conversion:

A critical step is ensuring all dimensions and the density are in compatible units before multiplication. For example, if dimensions are in millimeters (mm) and density is in kilograms per cubic meter (kg/m³), conversions are necessary. The calculator handles this internally. A common approach is to convert all input dimensions to meters (m) first, calculate the volume in cubic meters (m³), and then multiply by the density in kg/m³ to get the weight in kilograms (kg).

Example Unit Conversion (mm to m): 1 mm = 0.001 m

Example Unit Conversion (inch to m): 1 inch = 0.0254 m

The Final Calculation:

Weight (kg) = Volume (m³) × Density (kg/m³)

Variables Table

Variable Meaning Unit Typical Range (Density)
L, W, T Length, Width, Thickness mm, cm, m, in, ft N/A
D Diameter mm, cm, m, in, ft N/A
OD, ID Outer Diameter, Inner Diameter mm, cm, m, in, ft N/A
ρ (Density) Mass per unit volume of the aluminum alloy kg/m³ (or g/cm³) 2370 – 2800 kg/m³
V Volume of the aluminum shape m³ (or cm³, mm³, in³, ft³) N/A
W Weight of the aluminum component kg (or lbs) N/A

The aluminum weight calculator download simplifies these steps, providing instant results.

Practical Examples (Real-World Use Cases)

Here are a couple of practical scenarios demonstrating the use of the aluminum weight calculator:

Example 1: Calculating the weight of an Aluminum Plate

Scenario: A workshop needs to fabricate a sign from a sheet of 5052 aluminum. The dimensions are 1200 mm in length, 600 mm in width, and 5 mm in thickness.

Inputs:

  • Shape: Rectangular Prism
  • Material: 5052 Aluminum
  • Length: 1200 mm
  • Width: 600 mm
  • Thickness: 5 mm
  • Unit: mm

Calculation Steps (Internal):

  1. Density of 5052 Aluminum ≈ 2700 kg/m³
  2. Convert dimensions to meters: L=1.2m, W=0.6m, T=0.005m
  3. Calculate Volume: V = 1.2m × 0.6m × 0.005m = 0.0036 m³
  4. Calculate Weight: W = 0.0036 m³ × 2700 kg/m³ = 9.72 kg

Calculator Output:

  • Weight: 9.72 kg
  • Volume: 0.0036 m³
  • Density: 2700 kg/m³

Interpretation: The workshop needs approximately 9.72 kg of 5052 aluminum for this sign. This helps in ordering the correct amount of material and estimating the handling weight.

Example 2: Determining the weight of an Aluminum Rod

Scenario: A manufacturer requires a solid rod of 6061 aluminum with a diameter of 2 inches and a length of 3 feet for a structural component.

Inputs:

  • Shape: Cylinder
  • Material: 6061 Aluminum
  • Length: 3 ft
  • Diameter: 2 in
  • Unit: inch (for diameter), ft (for length) – Calculator handles mixed units or requires conversion. Let's assume user selects 'inch' and inputs 36 inches for length.

Calculation Steps (Internal):

  1. Density of 6061 Aluminum ≈ 2720 kg/m³
  2. Convert dimensions to meters: Diameter = 2 in × 0.0254 m/in = 0.0508 m. Radius = 0.0254 m. Length = 3 ft × 0.3048 m/ft = 0.9144 m.
  3. Calculate Volume: V = π × (0.0254 m)² × 0.9144 m ≈ 0.001858 m³
  4. Calculate Weight: W = 0.001858 m³ × 2720 kg/m³ ≈ 5.05 kg

Calculator Output:

  • Weight: 5.05 kg
  • Volume: 0.001858 m³
  • Density: 2720 kg/m³

Interpretation: Each rod weighs approximately 5.05 kg. This is vital for calculating the total weight of multiple components, shipping costs, and ensuring the structural integrity of the final product. Using an aluminum weight calculator download saves significant time compared to manual calculations.

How to Use This Aluminum Weight Calculator

Using our aluminum weight calculator download is designed to be intuitive and efficient. Follow these simple steps:

  1. Select Aluminum Alloy: Choose the specific aluminum alloy (e.g., 1060, 3003, 6061) from the dropdown menu. This ensures the calculator uses the correct density for your calculation.
  2. Choose Shape: Select the geometric shape of your aluminum piece (Rectangular Prism, Cylinder, Tube, Angle) from the dropdown.
  3. Input Dimensions: Based on the selected shape, enter the relevant dimensions (Length, Width, Thickness, Diameter, etc.) into the provided fields.
  4. Select Unit: Choose the unit of measurement (mm, cm, m, inches, feet) that you used for your dimensions. The calculator will handle the necessary conversions.
  5. Calculate Weight: Click the "Calculate Weight" button.

How to Read Results:

  • Main Result (Weight): This is the primary output, displayed prominently, showing the calculated weight of your aluminum component in kilograms (kg).
  • Intermediate Values: You'll also see the calculated Volume (in m³) and the Density (in kg/m³) used for the specific alloy.
  • Estimated Cost: An approximate cost is provided, based on a default price per kilogram. This can be a useful financial indicator.
  • Key Assumptions: This section confirms the density value used and the unit conversion factor applied, ensuring transparency.

Decision-Making Guidance:

  • Material Ordering: Use the calculated weight to order the precise amount of aluminum needed, minimizing waste and cost.
  • Shipping Quotes: The weight is essential for obtaining accurate shipping quotes and planning logistics.
  • Structural Design: Engineers can use this data to ensure their designs meet weight requirements and load-bearing capacities.
  • Budgeting: Estimate material costs more accurately for projects.

Don't forget to use the "Reset" button to clear fields for a new calculation and the "Copy Results" button to easily transfer the data.

Key Factors That Affect Aluminum Weight Results

While the aluminum weight calculator download automates the process, several factors influence the accuracy and relevance of the results:

  1. Aluminum Alloy Density Variation: The most significant factor. While standard densities are used, slight variations can occur due to manufacturing tolerances, heat treatment, and specific elemental compositions within an alloy grade. Always refer to the manufacturer's specifications for critical applications.
  2. Dimensional Accuracy: The precision of the input dimensions directly impacts the calculated volume and, consequently, the weight. Minor errors in measuring length, width, or thickness can lead to noticeable differences in the final weight.
  3. Unit Consistency: Ensuring all dimensions are measured and entered in the same unit, or correctly selected in the calculator's unit dropdown, is crucial. Mixing units (e.g., length in meters, thickness in millimeters) without proper conversion will yield incorrect results.
  4. Hollow Shapes & Wall Thickness: For tubes and hollow profiles, the accuracy of the wall thickness measurement is paramount. Small errors here significantly affect the calculated volume of material used.
  5. Surface Treatments & Coatings: While generally negligible for weight calculations, thick coatings (like anodizing or painting) can add a small amount of weight. This calculator typically ignores such minor additions.
  6. Temperature Effects: Aluminum, like most materials, expands when heated and contracts when cooled. This changes its volume and, therefore, its density slightly. For most practical applications, these thermal effects are minor and ignored by standard calculators.
  7. Internal Defects: Porosity or voids within the aluminum casting or extrusion can reduce the actual density and weight compared to the theoretical calculation.
  8. Material Cost Assumptions: The "Estimated Cost" feature relies on a pre-set price per kilogram. Fluctuations in the global aluminum market price will affect the real-world cost.

Understanding these factors helps in interpreting the results from the aluminum weight calculator download and applying appropriate safety margins in engineering and procurement.

Frequently Asked Questions (FAQ)

Q1: What is the standard density of aluminum used in this calculator? A1: This calculator uses standard density values for common aluminum alloys, typically ranging from approximately 2600 kg/m³ to 2800 kg/m³. The exact value depends on the selected alloy (e.g., 1060 is around 2700 kg/m³, 6061 is around 2720 kg/m³).
Q2: Can I calculate the weight of aluminum in pounds (lbs)? A2: The calculator primarily outputs weight in kilograms (kg). However, you can easily convert kg to lbs (1 kg ≈ 2.20462 lbs) manually after getting the result.
Q3: Does the calculator handle custom aluminum alloys? A3: No, this calculator uses pre-defined densities for common alloys. For custom alloys, you would need to know the specific density and potentially use a more advanced tool or manual calculation.
Q4: What if my dimensions are in different units (e.g., length in feet, width in inches)? A4: For best accuracy, ensure all dimensions are entered in the same unit, or select the unit that is most prevalent. The calculator's unit selection applies a conversion factor to all inputs. For mixed units, it's best to convert them to a single unit (e.g., inches) before inputting.
Q5: How accurate is the "Estimated Cost" feature? A5: The estimated cost is a rough approximation based on a fixed price per kilogram. Actual costs can vary significantly due to market fluctuations, supplier pricing, order volume, and additional fabrication charges.
Q6: Can this calculator be downloaded for offline use? A6: This specific implementation is a web-based tool. While you can save the HTML file, it requires a web browser to run. For true offline use, you might need to integrate the logic into a custom application. The term "download" in "aluminum weight calculator download" often refers to accessing the tool online.
Q7: What is the difference between weight and mass? A7: In everyday language, "weight" is often used interchangeably with "mass." Technically, mass is the amount of matter in an object, while weight is the force of gravity acting on that mass. This calculator computes mass, typically expressed in kilograms (kg).
Q8: How does the angle calculation work? A8: For an angle (L-shape), the calculator approximates the cross-sectional area. It calculates the area of the two legs minus the overlapping corner thickness, then multiplies by the length. The formula used is a common simplification for standard angles.

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var densities = { "1060": 2700, // kg/m³ "3003": 2730, "5052": 2700, "6061": 2720, "7075": 2800 }; var currentDensity = densities["1060"]; var unitFactors = { "mm": 0.001, "cm": 0.01, "m": 1.0, "inch": 0.0254, "ft": 0.3048 }; var currentUnitFactor = unitFactors["mm"]; var currentUnit = "mm"; function updateDensity() { var materialTypeSelect = document.getElementById("materialType"); var selectedMaterial = materialTypeSelect.value; currentDensity = densities[selectedMaterial] || densities["1060"]; // Default to 1060 if not found document.getElementById("assumedDensity").innerText = currentDensity.toFixed(0); calculateWeight(); } function toggleShapeInputs() { var shapeSelect = document.getElementById("shape"); var selectedShape = shapeSelect.value; document.getElementById("rectangularInputs").style.display = "none"; document.getElementById("cylinderInputs").style.display = "none"; document.getElementById("tubeInputs").style.display = "none"; document.getElementById("angleInputs").style.display = "none"; if (selectedShape === "rectangular_prism") { document.getElementById("rectangularInputs").style.display = "block"; } else if (selectedShape === "cylinder") { document.getElementById("cylinderInputs").style.display = "block"; } else if (selectedShape === "tube") { document.getElementById("tubeInputs").style.display = "block"; } else if (selectedShape === "angle") { document.getElementById("angleInputs").style.display = "block"; } calculateWeight(); } function getSelectedUnitFactor() { var unitSelect = document.getElementById("unit"); currentUnit = unitSelect.value; currentUnitFactor = unitFactors[currentUnit] || 1.0; document.getElementById("unitConversion").innerText = currentUnit + " to m: " + currentUnitFactor; return currentUnitFactor; } function validateInput(value, id, min = 0) { var errorElement = document.getElementById(id + "Error"); if (value === "") { errorElement.innerText = "This field is required."; return false; } var numberValue = parseFloat(value); if (isNaN(numberValue)) { errorElement.innerText = "Please enter a valid number."; return false; } if (numberValue < min) { errorElement.innerText = "Value cannot be negative."; return false; } errorElement.innerText = ""; // Clear error return numberValue; } function calculateWeight() { // Clear previous errors document.getElementById("lengthError").innerText = ""; document.getElementById("widthError").innerText = ""; document.getElementById("thicknessError").innerText = ""; document.getElementById("cylinderLengthError").innerText = ""; document.getElementById("cylinderDiameterError").innerText = ""; document.getElementById("tubeLengthError").innerText = ""; document.getElementById("tubeOuterDiameterError").innerText = ""; document.getElementById("tubeWallThicknessError").innerText = ""; document.getElementById("angleLengthError").innerText = ""; document.getElementById("angleLegLengthError").innerText = ""; document.getElementById("angleThicknessError").innerText = ""; var shape = document.getElementById("shape").value; var unitFactor = getSelectedUnitFactor(); var volume = 0; var validInputs = true; if (shape === "rectangular_prism") { var length = validateInput(document.getElementById("length").value, "length"); var width = validateInput(document.getElementById("width").value, "width"); var thickness = validateInput(document.getElementById("thickness").value, "thickness"); if (length === false || width === false || thickness === false) { validInputs = false; } else { var lengthM = length * unitFactor; var widthM = width * unitFactor; var thicknessM = thickness * unitFactor; volume = lengthM * widthM * thicknessM; } } else if (shape === "cylinder") { var cylinderLength = validateInput(document.getElementById("cylinderLength").value, "cylinderLength"); var cylinderDiameter = validateInput(document.getElementById("cylinderDiameter").value, "cylinderDiameter"); if (cylinderLength === false || cylinderDiameter === false) { validInputs = false; } else { var cylinderLengthM = cylinderLength * unitFactor; var radiusM = (cylinderDiameter * unitFactor) / 2; volume = Math.PI * Math.pow(radiusM, 2) * cylinderLengthM; } } else if (shape === "tube") { var tubeLength = validateInput(document.getElementById("tubeLength").value, "tubeLength"); var tubeOuterDiameter = validateInput(document.getElementById("tubeOuterDiameter").value, "tubeOuterDiameter"); var tubeWallThickness = validateInput(document.getElementById("tubeWallThickness").value, "tubeWallThickness"); if (tubeLength === false || tubeOuterDiameter === false || tubeWallThickness === false) { validInputs = false; } else { var tubeLengthM = tubeLength * unitFactor; var outerRadiusM = (tubeOuterDiameter * unitFactor) / 2; var innerDiameter = tubeOuterDiameter – 2 * tubeWallThickness; if (innerDiameter <= 0) { document.getElementById("tubeWallThicknessError").innerText = "Wall thickness too large for diameter."; validInputs = false; } else { var innerRadiusM = (innerDiameter * unitFactor) / 2; volume = Math.PI * (Math.pow(outerRadiusM, 2) – Math.pow(innerRadiusM, 2)) * tubeLengthM; } } } else if (shape === "angle") { var angleLength = validateInput(document.getElementById("angleLength").value, "angleLength"); var angleLegLength = validateInput(document.getElementById("angleLegLength").value, "angleLegLength"); var angleThickness = validateInput(document.getElementById("angleThickness").value, "angleThickness"); if (angleLength === false || angleLegLength === false || angleThickness === false) { validInputs = false; } else { var angleLengthM = angleLength * unitFactor; var angleLegLengthM = angleLegLength * unitFactor; var angleThicknessM = angleThickness * unitFactor; // Simplified angle area calculation: Area = (2 * LegLength – Thickness) * Thickness // More accurate: Area = (Leg1 * Thickness) + ((Leg2 – Thickness) * Thickness) // Assuming equal legs for simplicity here: var crossSectionalArea = (2 * angleLegLengthM – angleThicknessM) * angleThicknessM; if (crossSectionalArea <= 0) { document.getElementById("angleThicknessError").innerText = "Thickness too large for leg length."; validInputs = false; } else { volume = crossSectionalArea * angleLengthM; } } } if (!validInputs) { document.getElementById("main-result").innerText = "–"; document.getElementById("volume").innerText = "Volume: –"; document.getElementById("density").innerText = "Density: –"; document.getElementById("materialCost").innerText = "Estimated Cost: –"; updateChart([], []); // Clear chart return; } var weight = volume * currentDensity; var costPerKg = 2.50; // Example cost per kg, can be made an input var estimatedCost = weight * costPerKg; document.getElementById("main-result").innerText = weight.toFixed(2) + " kg"; document.getElementById("volume").innerText = "Volume: " + volume.toFixed(6) + " m³"; document.getElementById("density").innerText = "Density: " + currentDensity.toFixed(0) + " kg/m³"; document.getElementById("materialCost").innerText = "Estimated Cost: $" + estimatedCost.toFixed(2) + " (based on $" + costPerKg.toFixed(2) + "/kg)"; updateChartData(shape); // Update chart based on shape } function resetCalculator() { document.getElementById("materialType").value = "1060"; document.getElementById("shape").value = "rectangular_prism"; document.getElementById("length").value = "100"; document.getElementById("width").value = "50"; document.getElementById("thickness").value = "10"; document.getElementById("cylinderLength").value = "100"; document.getElementById("cylinderDiameter").value = "20"; document.getElementById("tubeLength").value = "100"; document.getElementById("tubeOuterDiameter").value = "30"; document.getElementById("tubeWallThickness").value = "3"; document.getElementById("angleLength").value = "100"; document.getElementById("angleLegLength").value = "40"; document.getElementById("angleThickness").value = "5"; document.getElementById("unit").value = "mm"; // Clear errors var errorElements = document.querySelectorAll('.error-message'); for (var i = 0; i < errorElements.length; i++) { errorElements[i].innerText = ''; } updateDensity(); toggleShapeInputs(); calculateWeight(); } function copyResults() { var mainResult = document.getElementById("main-result").innerText; var volumeText = document.getElementById("volume").innerText; var densityText = document.getElementById("density").innerText; var costText = document.getElementById("materialCost").innerText; var assumedDensityText = document.getElementById("assumedDensity").innerText; var unitConversionText = document.getElementById("unitConversion").innerText; var materialType = document.getElementById("materialType").options[document.getElementById("materialType").selectedIndex].text; var shape = document.getElementById("shape").options[document.getElementById("shape").selectedIndex].text; var copyText = "— Aluminum Weight Calculation Results —\n\n"; copyText += "Material: " + materialType + "\n"; copyText += "Shape: " + shape + "\n"; copyText += "————————————–\n"; copyText += "Weight: " + mainResult + "\n"; copyText += volumeText + "\n"; copyText += densityText + "\n"; copyText += costText + "\n"; copyText += "————————————–\n"; copyText += "Assumptions:\n"; copyText += "Assumed Density: " + assumedDensityText + " kg/m³\n"; copyText += "Unit Conversion: " + unitConversionText + "\n"; navigator.clipboard.writeText(copyText).then(function() { // Optional: Show a confirmation message var copyButton = document.querySelector('button[onclick="copyResults()"]'); var originalText = copyButton.innerText; copyButton.innerText = "Copied!"; setTimeout(function() { copyButton.innerText = originalText; }, 2000); }).catch(function(err) { console.error('Failed to copy text: ', err); // Fallback for older browsers or environments where clipboard API is not available var textArea = document.createElement("textarea"); textArea.value = copyText; textArea.style.position = "fixed"; // Avoid scrolling to bottom document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Copied!' : 'Copy failed'; console.log('Fallback: ' + msg); var copyButton = document.querySelector('button[onclick="copyResults()"]'); var originalText = copyButton.innerText; copyButton.innerText = msg; setTimeout(function() { copyButton.innerText = originalText; }, 2000); } catch (err) { console.error('Fallback: Oops, unable to copy', err); } document.body.removeChild(textArea); }); } // Charting Logic var weightChart; var chartContext = document.getElementById('weightChart').getContext('2d'); function updateChartData(shape) { var labels = []; var data = []; var baseValue = 100; // Base value for comparison var increment = 10; // Increment for dimension // Generate sample data based on shape if (shape === "rectangular_prism") { labels = ["Length (m)", "Width (m)", "Thickness (m)"]; var baseLength = parseFloat(document.getElementById("length").value || "100") * getSelectedUnitFactor(); var baseWidth = parseFloat(document.getElementById("width").value || "50") * getSelectedUnitFactor(); var baseThickness = parseFloat(document.getElementById("thickness").value || "10") * getSelectedUnitFactor(); var lengthData = []; var widthData = []; var thicknessData = []; for (var i = 0; i < 5; i++) { var currentLength = baseLength + (i * increment * getSelectedUnitFactor()); var currentWidth = baseWidth + (i * increment * getSelectedUnitFactor()); var currentThickness = baseThickness + (i * increment * getSelectedUnitFactor()); lengthData.push(currentLength * baseWidth * baseThickness * currentDensity); widthData.push(baseLength * currentWidth * baseThickness * currentDensity); thicknessData.push(baseLength * baseWidth * currentThickness * currentDensity); } data = [lengthData, widthData, thicknessData]; labels = ["Varying Length", "Varying Width", "Varying Thickness"]; } else if (shape === "cylinder") { labels = ["Length (m)", "Diameter (m)"]; var baseLength = parseFloat(document.getElementById("cylinderLength").value || "100") * getSelectedUnitFactor(); var baseDiameter = parseFloat(document.getElementById("cylinderDiameter").value || "20") * getSelectedUnitFactor(); var radius = baseDiameter / 2; var lengthData = []; var diameterData = []; for (var i = 0; i < 5; i++) { var currentLength = baseLength + (i * increment * getSelectedUnitFactor()); var currentDiameter = baseDiameter + (i * increment * getSelectedUnitFactor()); var currentRadius = currentDiameter / 2; lengthData.push(Math.PI * Math.pow(radius, 2) * currentLength * currentDensity); diameterData.push(Math.PI * Math.pow(currentRadius, 2) * baseLength * currentDensity); } data = [lengthData, diameterData]; labels = ["Varying Length", "Varying Diameter"]; } else if (shape === "tube") { labels = ["Length (m)", "Outer Diameter (m)"]; var baseLength = parseFloat(document.getElementById("tubeLength").value || "100") * getSelectedUnitFactor(); var baseOuterDiameter = parseFloat(document.getElementById("tubeOuterDiameter").value || "30") * getSelectedUnitFactor(); var baseWallThickness = parseFloat(document.getElementById("tubeWallThickness").value || "3") * getSelectedUnitFactor(); var baseOuterRadius = baseOuterDiameter / 2; var baseInnerRadius = baseOuterRadius – baseWallThickness; var lengthData = []; var outerDiameterData = []; for (var i = 0; i < 5; i++) { var currentLength = baseLength + (i * increment * getSelectedUnitFactor()); var currentOuterDiameter = baseOuterDiameter + (i * increment * getSelectedUnitFactor()); var currentOuterRadius = currentOuterDiameter / 2; var currentInnerRadius = currentOuterRadius – baseWallThickness; // Keep thickness constant for this comparison lengthData.push(Math.PI * (Math.pow(baseOuterRadius, 2) – Math.pow(baseInnerRadius, 2)) * currentLength * currentDensity); outerDiameterData.push(Math.PI * (Math.pow(currentOuterRadius, 2) – Math.pow(currentInnerRadius, 2)) * baseLength * currentDensity); } data = [lengthData, outerDiameterData]; labels = ["Varying Length", "Varying Outer Diameter"]; } else if (shape === "angle") { labels = ["Length (m)", "Leg Length (m)"]; var baseLength = parseFloat(document.getElementById("angleLength").value || "100") * getSelectedUnitFactor(); var baseLegLength = parseFloat(document.getElementById("angleLegLength").value || "40") * getSelectedUnitFactor(); var baseThickness = parseFloat(document.getElementById("angleThickness").value || "5") * getSelectedUnitFactor(); var lengthData = []; var legLengthData = []; for (var i = 0; i < 5; i++) { var currentLength = baseLength + (i * increment * getSelectedUnitFactor()); var currentLegLength = baseLegLength + (i * increment * getSelectedUnitFactor()); var crossSectionalAreaLength = (2 * baseLegLength – baseThickness) * baseThickness; lengthData.push(crossSectionalAreaLength * currentLength * currentDensity); var crossSectionalAreaLeg = (2 * currentLegLength – baseThickness) * baseThickness; legLengthData.push(crossSectionalAreaLeg * baseLength * currentDensity); } data = [lengthData, legLengthData]; labels = ["Varying Length", "Varying Leg Length"]; } // Destroy previous chart instance if it exists if (weightChart) { weightChart.destroy(); } // Create new chart weightChart = new Chart(chartContext, { type: 'line', // Use line chart for trends data: { labels: labels, datasets: [{ label: 'Weight (kg)', data: data[0], // Use first dataset for the primary line borderColor: 'rgba(0, 74, 153, 1)', backgroundColor: 'rgba(0, 74, 153, 0.2)', fill: false, tension: 0.1 }, // Add a second dataset if available (e.g., for comparing two variables) // This part needs refinement based on how you want to compare // For now, let's just show one primary trend line // If you want to compare two dimensions, you'd need to structure data differently // Example: If comparing Length vs Diameter for a cylinder // data: [lengthData, diameterData] // datasets: [ { label: 'Varying Length', data: lengthData, … }, { label: 'Varying Diameter', data: diameterData, … } ] // For simplicity, we'll just plot one trend for now. // If you want to show two series, uncomment and adapt below: // { // label: 'Second Variable Trend', // e.g., 'Varying Diameter' // data: data[1], // Use second dataset // borderColor: 'rgba(40, 167, 69, 1)', // backgroundColor: 'rgba(40, 167, 69, 0.2)', // fill: false, // tension: 0.1 // } ] }, options: { responsive: true, maintainAspectRatio: false, plugins: { title: { display: true, text: 'Weight Trend Based on Dimension Changes' }, legend: { position: 'top', } }, scales: { x: { title: { display: true, text: 'Dimension Change' } }, y: { title: { display: true, text: 'Weight (kg)' }, beginAtZero: true } } } }); } // Initial setup document.addEventListener('DOMContentLoaded', function() { updateDensity(); toggleShapeInputs(); calculateWeight(); // Initialize chart with default shape data updateChartData(document.getElementById("shape").value); });

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