Week - 5 - Modelling Spotwelds
AIM: To find out the spotweld simulation of beam and solid element using different deliverables.
EXPLANATION:
- Given data for simulation of model used is steel material.
- Density of material is 7.850kg/m3.
- velocity of impact
- For beam element :10m/sec
- For solid element : 10m/sec
- Thickness of beam: 3mm
- Termination time used is : 3 sec
- In this model contact used for both beam and solid element is two types :
- Automatic single surface
- Tied shell edge to surface
ANIMATION OF THE FINAL SIMULATION OF BEAM ELEMENT
ANIMATION OF THE FINAL SIMULATION OF SOLID ELEMENT
PLOT OF ALL ENERGIES
KINETIC ENERGY OF BEAM ELEMENT
KINETIC ENERGY OF SOLID ELEMENT
Comparing the above both kinetic energies after collision maximum energy generated at point is 2.52e+04 in solid element.
INTERNAL ENERGY OF BEAM ELEMENT
INTERNAL ENERGY OF SOLID ELEMENT
Compairing the above both internal energies maximum energy generated at point is 9.13e+04 in beam element.
TOTAL ENERGY OF BEAM ELEMENT
TOTAL ENERGY OF SOLID ELEMENT
Compairing the above both total energies maximum energy generated at point is 2.52e+04 in solid element.
CROSS SECTIONAL FORCE GENERATED IN THE MIDDLE OF THE SPOTWELD FOR BEAM ELEMENT
CROSS SECTIONAL FORCE GENERATED IN THE MIDDLE OF THE SPOTWELD FOR SOLID ELEMENT
Compairing the above both cross sectional forces maximum force generated at point is 29.7 in solid element.
ACCELERATION PLOT OF A NODE(506994) OF BEAM ELEMENT
ACCELERATION PLOT OF A NODE(506994) OF SOLID ELEMENT
Compairing the above both acceleration plots of node(506994) maximum acceleration generated at point is 74.0 in solid element.
MAXIMUM DIRECTIONAL STRESS OF BEAM ELEMENT
MAXIMUM DIRECTIONAL STRESS OF SOLID ELEMENT
Compairing the above both maximum directional stress generated at point is 27.9 in beam element.
MAXIMUM STRESS OF BEAM ELEMENT
MAXIMUM STRESS OF SOLID ELEMENT
By compairing the above both maximum stress generated is (9.941e+01) for beam element, and (1.952e+01) for solid element.
AXIAL FORCE OF BEAM ELEMENT
AXIAL FORCE OF SOLID ELEMENT
By compairing the above both axial force maximum force generated at point is 441 in beam element.
SHEAR FORCE OF BEAM ELEMENT
SHEAR FORCE OF SOLID ELEMENT
By compairing the above both shear force maximum shear force generated at point is 113 in beam element.
CONCLUSION Hence from the above comparision less stress will be generated in the solid element, So finally in my point of veiw solid element of spotweld is better. And in this model there is no strain is generated (effective plastic strain), actually strain has to be generated but im not understanding why it is not generating even though after collision it almost damaging but no strain is generating. And various deliverables are shown in above.