#1. What is first natural frequency of table?
The first natural frequency should be minimum value.
#2. What are the material details required to perform the transient thermal analysis
For thermal analysis only thermal conductivity is enough to obtain the thermal profile.
#3. If you have one steel and one aluminium bar of equal cross-sectional areas (2 m2) and both bars are loaded with a force of 10 KN, which bar will have the higher stress? By how much would you expect the stress values to differ?
Stress is independent of material, stress is calculated as force per unit area.
#4. When Does Symmetry Condition is Possible ?
For symmetry Both geometry and boundary condition (forces and constraints) should be symmetric.
#5. The solid block is applied with force in X directions, what boundary condition need to be applied at the bottom face of the block to solve this simulation ?
To avoid rigid body motion for x direction load, you need to constraint in X & Y direction to block X direction as well as movement due to applied force.
X & Z directions constraint restrict only in-plane (X-Y plane) movement
Y & Z directions constraint does not provide restriction for x direction movement.
#6. What is the reaction in vertical axis (X Axis) ?
The vertical reaction is calculates as 10000*Cos(30).
#7. Which is the correct loading & boundary conditions for half symmetry of highlighted Rectangular Beam ?
For half symmetry, you need to
Consider half model
Restrict the normal direction, &
Reduce load by half
#8. Cylinder is applied with 2 MPa constant pressure over internal faces of cylinder and both ends are fixed in all dof. What will be the reaction on end faces.
It will acts as closed condition and hence the reaction should be zero.
#9. One end of the cantilever beam is fixed while other end is applied with downward displacement. The material of the beam is structural steel. Peak stresses are observed at the fixed end. Now In order to reduced the stresses, what will you prefer from below option?
Stress is directly proportional to elastic limit, you will reduce stresses if you will consider Aluminum material (as AL have approximately 1/3 elastic modulus compare to Steel). Also,
You are applying fixed displacement at the end of the beam, stresses will reduce if you make beam more flexible means will reduce thickness of the beam.
#10. Refer Case-1 and Case-2 from highlighted figure and provide correct answer from below options
The point load have grater load acting download in small region compare to UDL (distributed load) and hence point load case have higher displacement at the center resulting high stresses at fixed locations.
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