Week-6 Calculate the Stretch Ratio by comparing the ELFORM (-2,-1,1,2) with Ogden_Material Model.

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Use a proper solver (Implicit/Explicit) and also explain the reason.

Hints:

• LS-DYNA the output of stress and strains from Post FringeComp Stress/Strain is given as true stress and strains.
• Stretch ratio l is defined as the ratio between the final length L and the initial length L0 of a component i.e. it is equal to (1 + engineering strain)
• Your boundary condition should be relatable with the real-time boundary condition.
• You need to add *Database_Extend_Binary card and activate the STRFLG to get the strain data.

Deliverables:

• An excel sheet with proper conversion and calculation of Stress/Strain and the Stretch Ratio for all the ELFORM.
• A proper image of the plot comparison of various ELFORMS against the Uniaxial Plot given in the challenge.