Dear ram_gopisett
May I ask you to do a favor for me? to guide me step by step to solve my problem, I want to be sure that I am going it correctly.
2.At first, I defined my material. I extract the true stress and true strain from tensile test data. and add them as a Multilinear Isotropic Hardening.
I read that, If we want to use LS-Dyna for simulation and use Johnson cook failure criteria, we have to use the plasticity and failure criteria the same. I mean both of them should be based on Johnson cook. Is it true? Because here I used Multilinear Isotropic Hardening and Johnson cook failure as the below image :
I have a question about "Reference Strain Rate", should I use ZERO? because I have just three damage constant. and melting temperature is important?
2.But here before starting to do anything ansys gives me an error that:
If I clean 22 from temperature, it shows me this error again. I searched for this error but I could not find anything to how can I solve it. Please guide me.
3.I import my geometry and meshed it. In both mesh and body size, I added "0.003 mm" as the size of elements; and meshed it. should I use this size to calculate CFL?
4.the main problem for me is related to Analysis settings. Can you help me to fill it?
I found CFL from a video in Ansys youtube and it is defined by the below equation
I calculated my CFL time and it is equal to 5.31e-7. I should mention it I consider f=1 in the above equation. is it true?
Can you guid me about :
Number of steps?
Initial, minimum and maximum time steps?
End time ?
Static Dampin ?
Thank you. dear @ram_gopisett.
May I ask you to do a favor for me? to guide me step by step to solve my problem, I want to be sure that I am going it correctly.
2.At first, I defined my material. I extract the true stress and true strain from tensile test data. and add them as a Multilinear Isotropic Hardening.
I read that, If we want to use LS-Dyna for simulation and use Johnson cook failure criteria, we have to use the plasticity and failure criteria the same. I mean both of them should be based on Johnson cook. Is it true? Because here I used Multilinear Isotropic Hardening and Johnson cook failure as the below image :
I have a question about "Reference Strain Rate", should I use ZERO? because I have just three damage constant. and melting temperature is important?
2.But here before starting to do anything ansys gives me an error that:
If I clean 22 from temperature, it shows me this error again. I searched for this error but I could not find anything to how can I solve it. Please guide me.
3.I import my geometry and meshed it. In both mesh and body size, I added "0.003 mm" as the size of elements; and meshed it. should I use this size to calculate CFL?
4.the main problem for me is related to Analysis settings. Can you help me to fill it?
I found CFL from a video in Ansys youtube and it is defined by the below equation
I calculated my CFL time and it is equal to 5.31e-7. I should mention it I consider f=1 in the above equation. is it true?
Can you guid me about :
Number of steps?
Initial, minimum and maximum time steps?
End time ?
Static Dampin ?
Thank you. dear @ram_gopisett.
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