How to Interpret Stress Results in SolidWorks: A Simple Guide

To interpret stress results in SolidWorks, focus on the von Mises stress plot which shows where your part may yield or fail. Compare the maximum stress values to your material's yield strength to check if the design is safe. Use color gradients and stress legends to quickly identify high-stress areas.

Syntax

In SolidWorks Simulation, stress results are displayed using the von Mises stress plot, which is the standard for ductile materials. The syntax for accessing stress results is through the Simulation study tree under Results > Stress. You can view stress values as color-coded plots or numerical data.

• von Mises Stress: Shows equivalent stress used to predict yielding.
• Max Stress: The highest stress value found in the model.
• Stress Legend: Color scale indicating stress magnitude from low (blue) to high (red).

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Simulation Study Tree > Results > Stress > von Mises Stress Plot

Example

This example shows how to interpret stress results for a simple cantilever beam under load. The von Mises stress plot highlights the highest stress near the fixed end. The maximum stress value is compared to the material's yield strength to determine safety.

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1. Create a cantilever beam model.
2. Apply a force at the free end.
3. Run a static simulation.
4. Open the Results > Stress plot.
5. Observe the color gradient and max stress value.
6. Compare max stress to material yield strength (e.g., 250 MPa).

// Interpretation:
// If max von Mises stress = 180 MPa < 250 MPa, design is safe.
// If max von Mises stress > 250 MPa, redesign is needed.

Output

Max von Mises Stress: 180 MPa
Material Yield Strength: 250 MPa
Result: Design is safe under applied load.

Common Pitfalls

• Ignoring the von Mises stress and looking only at raw stress components can mislead safety assessment.
• Not comparing stress results to the correct material yield strength causes wrong conclusions.
• Overlooking stress concentrations (sharp color changes) that may cause local failure.
• Misinterpreting units or scale in the stress legend.

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Wrong approach:
// Checking only 'Normal Stress' instead of 'von Mises Stress'

Right approach:
// Always use 'von Mises Stress' for ductile materials to assess yield.

Quick Reference

Term	Meaning	Tip
von Mises Stress	Equivalent stress predicting yielding	Use for ductile materials
Max Stress	Highest stress value in model	Compare to material yield strength
Stress Legend	Color scale from low (blue) to high (red)	Check for red zones indicating risk
Yield Strength	Material stress limit before permanent deformation	Always know your material properties
Stress Concentration	Localized high stress area	May require design changes

Key Takeaways

Always use von Mises stress to evaluate ductile material safety in SolidWorks.

Compare maximum stress values to your material's yield strength to judge design safety.

Use the color-coded stress legend to quickly spot high-stress areas.

Beware of stress concentrations that can cause local failures.

Double-check units and material properties before finalizing your interpretation.