Fusion 360 Simulation and Analysis 2 — Questions and Answers
Question 1: What material property is most critical for accurate Fusion 360 FEA stress results?
- Young's Modulus (Elastic Modulus) (Correct answer)
- Density
- Thermal Conductivity
- Melting Point
Correct answer: Young's Modulus (Elastic Modulus)
Young's Modulus defines a material's stiffness (resistance to deformation), directly controlling how the FEA solver calculates stress and strain.
Question 2: What does 'Displacement' show in Fusion 360 Simulation results?
- How far each point in the model moves from its original position under load (Correct answer)
- The stress at each location
- The factor of safety distribution
- The mesh element quality
Correct answer: How far each point in the model moves from its original position under load
Displacement results show the magnitude and direction of movement each node experiences when the load is applied, indicating deflection.
Question 3: What is the purpose of applying 'Symmetry' constraints in Fusion 360 Simulation?
- Reduces model size by simulating only a symmetric portion of the geometry (Correct answer)
- Defines the axis of revolution
- Applies a mirror load condition
- Locks the entire model rigidly
Correct answer: Reduces model size by simulating only a symmetric portion of the geometry
Symmetry boundary conditions allow simulating only half (or quarter) of a symmetric part, cutting computation time without sacrificing accuracy.
Question 4: In Fusion 360 Simulation, what does 'Convergence' mean?
- The mesh is fine enough that further refinement produces negligible change in results (Correct answer)
- The simulation has completed all iterations
- The model has reached material failure
- The solver has matched the applied loads exactly
Correct answer: The mesh is fine enough that further refinement produces negligible change in results
Convergence means that refining the mesh no longer significantly changes the calculated stress or displacement, indicating a reliable result.
Question 5: Which Fusion 360 Simulation study type checks if a slender part will buckle before yielding?
- Linear Buckling (Correct answer)
- Static Stress
- Thermal
- Modal Frequencies
Correct answer: Linear Buckling
Linear Buckling analysis calculates the critical load at which a slender structure becomes unstable and collapses laterally rather than yielding.
Question 6: What does a 'Modal Frequencies' study in Fusion 360 Simulation determine?
- The natural vibration frequencies and mode shapes of a structure (Correct answer)
- The maximum stress under static load
- The heat distribution through the part
- The plastic deformation after yield
Correct answer: The natural vibration frequencies and mode shapes of a structure
Modal Frequencies analysis finds the resonant frequencies at which a structure naturally vibrates and shows the corresponding deformation mode shapes.
Fusion 360 Simulation and Analysis 2
What material property is most critical for accurate Fusion 360 FEA stress results?