Applying loads (forces, pressures) in Solidworks - Real Business Scenario

Scenario Mode

👤 Your Role: You are a mechanical engineer working on a new product design.

📋 Request: Your manager wants you to analyze how different forces and pressures affect the product's structure.

📊 Data: You have a 3D model of the product and a list of forces and pressures to apply at specific points and surfaces.

🎯 Deliverable: Create a report showing the stress distribution and deformation results after applying the loads.

Sample Data

Load Type	Location	Magnitude	Direction
Force	Top Face	500 N	Downward
Force	Left Side	200 N	Horizontal Right
Pressure	Bottom Face	1000 Pa	Normal Inward
Force	Right Side	150 N	Horizontal Left
Pressure	Front Face	500 Pa	Normal Outward

1

Step 1: Open the 3D model in SolidWorks and prepare it for simulation by defining the material properties.

Assign material: Steel, Young's Modulus = 210 GPa, Poisson's Ratio = 0.3

Expected Result

Model is ready with correct material properties for stress analysis.

2

Step 2: Set up the simulation study as a static analysis.

Create new static study in SolidWorks Simulation.

Expected Result

Static study is created and ready for load application.

3

Step 3: Apply the force of 500 N downward on the top face.

Select top face, apply force: 500 N, direction: downward (Z-axis negative).

Expected Result

Force applied correctly on top face.

4

Step 4: Apply the force of 200 N horizontally to the right on the left side face.

Select left side face, apply force: 200 N, direction: horizontal right (X-axis positive).

Expected Result

Force applied correctly on left side face.

5

Step 5: Apply the pressure of 1000 Pa normal inward on the bottom face.

Select bottom face, apply pressure: 1000 Pa, direction: normal inward.

Expected Result

Pressure applied correctly on bottom face.

6

Step 6: Apply the force of 150 N horizontally to the left on the right side face.

Select right side face, apply force: 150 N, direction: horizontal left (X-axis negative).

Expected Result

Force applied correctly on right side face.

7

Step 7: Apply the pressure of 500 Pa normal outward on the front face.

Select front face, apply pressure: 500 Pa, direction: normal outward.

Expected Result

Pressure applied correctly on front face.

8

Step 8: Define fixed geometry constraints to prevent rigid body motion.

Fix bottom face in all directions.

Expected Result

Model is fixed and will not move during simulation.

9

Step 9: Run the simulation to calculate stress and deformation.

Click 'Run' in simulation study.

Expected Result

Simulation completes successfully with stress and deformation results.

10

Step 10: Create a report showing the maximum stress, maximum displacement, and stress distribution plot.

Generate report from simulation results including images of stress and displacement plots.

Expected Result

Report is generated with clear visuals and key results.

Final Result

Stress Distribution Plot

↓

Displacement Plot

✓The highest stress occurs near the top face where the 500 N downward force is applied.

✓Maximum displacement is 0.5 mm at the free end opposite the fixed bottom face.

✓Pressure loads contribute to overall stress but forces have greater impact on deformation.

Bonus Challenge

Perform a modal analysis to find the natural frequencies of the product under the applied loads.

Show Hint

Create a new modal study in SolidWorks Simulation and use the same constraints and loads.

Practice

1.

What is the main purpose of applying loads in SolidWorks simulations?

easy

A. To simulate how forces affect the design's strength and behavior

B. To change the color of the model

C. To create new parts automatically

D. To export the design to other software

Solution

1. Step 1: Understand the role of loads in simulation

   Loads represent forces or pressures applied to a model to test its response.

2. Step 2: Identify the purpose of applying loads

   Applying loads helps predict stress, deformation, and failure points in the design.

3. Final Answer:

   To simulate how forces affect the design's strength and behavior -> Option A

4. Quick Check:

   Loads test design behavior = A [OK]

Hint: Loads simulate forces on design to check strength [OK]

Common Mistakes:

• Thinking loads change model appearance
• Confusing loads with part creation
• Assuming loads export data

2.

Which of the following is the correct way to apply a Force load in SolidWorks Simulation?

easy

A. Draw a sketch and convert it to a force

B. Select the entire model and click 'Apply Pressure'

C. Use the 'Mesh' tool to add force values

D. Select the face, then specify magnitude and direction of the force

Solution

1. Step 1: Identify how to apply a force load

   In SolidWorks, you select the face or edge where the force acts.

2. Step 2: Specify force details

   You enter the force magnitude and direction after selecting the location.

3. Final Answer:

   Select the face, then specify magnitude and direction of the force -> Option D

4. Quick Check:

   Force load = select face + magnitude/direction [OK]

Hint: Force load needs face selection and magnitude input [OK]

Common Mistakes:

• Applying pressure instead of force
• Selecting whole model instead of face
• Using mesh tool incorrectly

3.

Given a cantilever beam fixed at one end, if a downward force of 100 N is applied at the free end, what is the expected effect on the beam?

medium

A. The beam will bend downward causing stress near the fixed end

B. The beam will compress uniformly along its length

C. The beam will expand and lengthen

D. The beam will rotate without bending

Solution

1. Step 1: Understand cantilever beam behavior under load

   A force at the free end causes bending with maximum stress at the fixed end.

2. Step 2: Analyze the effect of downward force

   The beam bends downward, creating tension and compression zones, especially near the fixed support.

3. Final Answer:

   The beam will bend downward causing stress near the fixed end -> Option A

4. Quick Check:

   Cantilever + end force = bending stress at fixed end [OK]

Hint: Force at free end bends cantilever near fixed end [OK]

Common Mistakes:

• Assuming uniform compression
• Thinking beam lengthens
• Ignoring bending and only rotation

4.

In a SolidWorks simulation, a user applies a pressure load but the simulation shows zero deformation. What is the most likely error?

medium

A. The pressure magnitude was set too high

B. The pressure was applied to a fixed face with no degrees of freedom

C. The mesh size was too small

D. The material was set to plastic

Solution

1. Step 1: Identify why zero deformation occurs

   If the load is on a fixed face, the model cannot move or deform there.

2. Step 2: Understand fixed constraints effect

   Fixed constraints prevent movement, so pressure on that face causes no deformation.

3. Final Answer:

   The pressure was applied to a fixed face with no degrees of freedom -> Option B

4. Quick Check:

   Pressure on fixed face = zero deformation [OK]

Hint: Check if load is on fixed (immovable) face [OK]

Common Mistakes:

• Assuming high pressure causes zero deformation
• Thinking mesh size causes no deformation
• Confusing material type with deformation

5.

You want to simulate the effect of wind pressure on a car door in SolidWorks. Which combination of load types and locations is best?

hard

A. Apply a force load at the door handle only

B. Apply a torque load on the door hinges

C. Apply a uniform pressure load on the outer surface of the door

D. Apply a pressure load inside the door cavity

Solution

1. Step 1: Identify the nature of wind load

   Wind applies pressure distributed over the outer surface of the door.

2. Step 2: Choose appropriate load type and location

   A uniform pressure load on the door's outer surface best simulates wind effect.

3. Final Answer:

   Apply a uniform pressure load on the outer surface of the door -> Option C

4. Quick Check:

   Wind = uniform pressure on outer surface [OK]

Hint: Wind acts as pressure on outer surface, not force at one point [OK]

Common Mistakes:

• Applying force only at handle
• Using torque on hinges for wind
• Applying pressure inside door cavity