Running simulation and interpreting results in Solidworks - Real Business Scenario

Scenario Mode

👤 Your Role: You are a mechanical engineer at a manufacturing company.

📋 Request: Your manager wants you to run a stress simulation on a new bracket design and interpret the results to ensure it meets safety standards.

📊 Data: You have the 3D CAD model of the bracket and material properties including yield strength and elasticity.

🎯 Deliverable: A report with simulation results showing stress distribution, maximum stress values, and recommendations on design safety.

Sample Data

Element ID	Max Stress (MPa)	Location	Material Yield Strength (MPa)
1	120	Corner A	250
2	180	Hole Edge B	250
3	90	Flat Surface C	250
4	200	Support D	250
5	160	Joint E	250
6	140	Base F	250
7	210	Fillet G	250
8	130	Edge H	250

1

Step 1: Import the 3D CAD model of the bracket into SolidWorks Simulation.

Use 'File > Open' and select the bracket model file.

Expected Result

Bracket model is loaded and visible in the simulation environment.

2

Step 2: Assign the material properties to the bracket model.

Select the bracket, then apply material with yield strength 250 MPa and elasticity as per data.

Expected Result

Material properties are correctly assigned to the model.

3

Step 3: Set up the simulation study with fixed supports and applied loads as per design requirements.

Apply fixed constraints at mounting points and apply forces where the bracket will bear load.

Expected Result

Simulation study is configured with correct boundary conditions.

4

Step 4: Run the stress simulation to calculate stress distribution across the bracket.

Click 'Run' in the simulation tab to start the analysis.

Expected Result

Simulation completes successfully and stress results are generated.

5

Step 5: Review the stress distribution results and identify maximum stress values and their locations.

Use the results plot to find max stress values; refer to sample data for element IDs and stress values.

Expected Result

Maximum stress found is 210 MPa at Fillet G, below the yield strength of 250 MPa.

6

Step 6: Interpret the results to assess if the bracket design is safe under the applied loads.

Compare max stress values with material yield strength; if max stress < yield strength, design is safe.

Expected Result

Bracket design is safe as all max stress values are below 250 MPa.

7

Step 7: Prepare a report summarizing the simulation setup, results, and safety conclusion.

Include screenshots of stress plots, max stress table, and safety assessment.

Expected Result

Report clearly shows bracket is safe with max stress 210 MPa at Fillet G.

Final Result

Bracket Stress Simulation Report
--------------------------------
Max Stress Locations and Values:
- Fillet G: 210 MPa
- Support D: 200 MPa
- Hole Edge B: 180 MPa

Material Yield Strength: 250 MPa

Conclusion: All stresses are below yield strength.
Bracket design is safe under applied loads.

✓Maximum stress occurs at Fillet G with 210 MPa.

✓All stress values are below the material yield strength of 250 MPa.

✓Bracket design meets safety requirements under current load conditions.

Bonus Challenge

Run a fatigue simulation to predict the bracket's lifespan under cyclic loading.

Show Hint

Use SolidWorks Simulation fatigue study and input load cycles and stress ranges.

Practice

1. What is the main purpose of running a simulation in SolidWorks before building a physical part?

easy

A. To test the design virtually and find potential problems early

B. To create a 3D model faster

C. To print the part automatically

D. To change the color of the design

Solution

1. Step 1: Understand simulation purpose

   Simulations help check how a design behaves under conditions without making a physical part.

2. Step 2: Identify benefits of early testing

   Finding problems early saves time and money by avoiding costly physical errors.

3. Final Answer:

   To test the design virtually and find potential problems early -> Option A

4. Quick Check:

   Simulation = early problem detection [OK]

Hint: Simulations find design issues before building [OK]

Common Mistakes:

• Thinking simulation creates physical parts
• Confusing simulation with 3D modeling speed
• Believing simulation changes design colors

2. Which of the following is the correct step to start a static simulation study in SolidWorks?

easy

A. Go to Simulation tab, click 'New Study', select 'Static', then click OK

B. Go to File menu, select 'Export', then choose 'Static Simulation'

C. Right-click the part and select 'Run Simulation' directly

D. Open the part and press Ctrl+S to start simulation

Solution

1. Step 1: Locate Simulation tab

   Simulation studies start from the Simulation tab in SolidWorks interface.

2. Step 2: Create new static study

   Select 'New Study', then choose 'Static' to analyze forces and stresses under steady loads.

3. Final Answer:

   Go to Simulation tab, click 'New Study', select 'Static', then click OK -> Option A

4. Quick Check:

   Simulation tab + New Study = start static study [OK]

Hint: Use Simulation tab > New Study > Static to start [OK]

Common Mistakes:

• Trying to export instead of creating study
• Right-click menu does not start simulation
• Saving file does not run simulation

3. After running a simulation, you see a color map showing red areas on your part. What does the red color usually indicate?

medium

A. Areas with the lowest stress

B. Areas that are not part of the simulation

C. Areas with no stress

D. Areas with the highest stress

Solution

1. Step 1: Understand color map meaning

   Simulation results use colors to show stress levels; red usually means high stress.

2. Step 2: Interpret red color

   Red areas are critical points where the part experiences maximum stress and risk of failure.

3. Final Answer:

   Areas with the highest stress -> Option D

4. Quick Check:

   Red color = high stress [OK]

Hint: Red means highest stress on the part [OK]

Common Mistakes:

• Confusing red with low stress
• Thinking red means no stress
• Ignoring color legend in results

4. You ran a simulation but the results show zero stress everywhere, which seems incorrect. What is the most likely cause?

medium

A. The part is too small to simulate

B. You forgot to apply loads or fixtures to the model

C. The simulation ran too long

D. You used the wrong color scheme

Solution

1. Step 1: Check simulation setup

   Stress results depend on applied loads and constraints; missing these causes zero stress.

2. Step 2: Identify missing inputs

   Without loads or fixtures, the part is free and unstressed, so results show zero everywhere.

3. Final Answer:

   You forgot to apply loads or fixtures to the model -> Option B

4. Quick Check:

   No loads = zero stress [OK]

Hint: Always apply loads and fixtures before running simulation [OK]

Common Mistakes:

• Assuming part size affects stress values directly
• Thinking simulation time affects stress results
• Blaming color scheme for zero stress

5. You want to improve a design after simulation shows high stress in a small area. Which approach is best to reduce stress based on simulation results?

hard

A. Remove all fixtures to let the part move freely

B. Change the material color to blue

C. Add fillets or rounds to smooth sharp corners in the high-stress area

D. Ignore the results and build the part as is

Solution

1. Step 1: Analyze high-stress area cause

   Sharp corners cause stress concentration; smoothing them reduces stress.

2. Step 2: Apply design improvement

   Adding fillets or rounds distributes stress more evenly and lowers peak stress.

3. Final Answer:

   Add fillets or rounds to smooth sharp corners in the high-stress area -> Option C

4. Quick Check:

   Smoothing corners reduces stress [OK]

Hint: Smooth sharp corners to lower stress [OK]

Common Mistakes:

• Changing color does not affect stress
• Removing fixtures causes unrealistic results
• Ignoring simulation feedback wastes improvement chance