Assignment 6-Frontal Crash Simulation Challenge
Objective- front impact test is an important safety check for the vehicle and it is performed in this assignment.
Apart from this there are other output requests like:
- Sectional force in the rails at location of indicated node 174247.
- Axial force received on the rails from bumper.
- Shotgun cross sectional forces.
- A pillar cross section.
- Acceleration curve received on the accelerometer at base of B pillar (on B pillar rocker).
- Intrusions on the dash wall 66695,66244.
Output1- sectional forces indicated node 174247
Sectional force Fx - indicated node 174247:
The magnitude of the maximum Fx sectional force is slightly less than 18kN
Sectional force Fy - indicated node 174247:
The magnitude of the maximum Fy sectional force is slightly less than 9kN
Sectional force Fz - indicated node 174247:
The magnitude of the maximum sectional force Fz is roughly 10kN.
Output2- Axial forces on rail
Fx:
The maximum Fx force is slightly less than 0.08026kN.
Fy:
The maximum Fy force is roughly 0.00865kN.
Fz:
The maximum Fz force is slightly less than 0.0275kN.
Output3- shotgun cross section forces
Fx:
The magnitude of the maximum Fx force is 7kN.
Fy:
The magnitude of the maximum Fy force is roughly 1.75kN.
Fz:
The maximum force Fz is slightly less than 2kN.
Output4- A pillar cross section forces
Fx:
The maximum Fx force is slightly less than 2.25kN.
Fy:
The maximum Fy force is slightly less than 0.7kN.
Fz:
The maximum Fz force is roughly 1kN.
Output5- intrusion of dash wall
Intrusion for 66695 node:
The maximum intrusion of this node is roughly 190mm in the global x direction.
Intrusion for 66244 node:
The maximum intrusion of this node is roughly 130mm in the global x direction.
Output6 – accelerometer acceleration curve at the base of the b pillar
Maximum value Ax is slightly less than 1mm/ms^2.
Maximum value Ay is slightly less than 1.3751mm/ms^2.
Maximum value Ax is slightly less than 0.551mm/ms^2.
Output7 energy plot
The maximum value of contact energy is slightly less than 2750J.
The maximum value of contact energy is roughly 400J.
As it can be seen from the graph, the hourglass energy losses are minimal and contact energy is also less throughout the simulation. The maximum forces, deflections and energies can be studied to prepare failure proof model of the product.