Problem in Solver
Problem in Solver
(OP)
Hello,
I am using a Material 1.4404 in my analysis.
Along with the Youngs Modulus,density and poisson ratio, I am also defining Johnson Cook(also strain rate dependency) Plastic hardening parameters:
Following are the values used:
A = 514
B = 514
C = 0.042
n = 0.508
m = 0.533
strain rate = 0.001
After running the simulation,I am getting the following error:
1)THE STRAIN INCREMENT HAS EXCEEDED FIFTY TIMES THE STRAIN TO CAUSE FIRST YIELD AT 44 POINTS
I have been trying to analyse it, but could not find any solution till now.
Waiting for some update from anyone
Thanks in advance!
I am using a Material 1.4404 in my analysis.
Along with the Youngs Modulus,density and poisson ratio, I am also defining Johnson Cook(also strain rate dependency) Plastic hardening parameters:
Following are the values used:
A = 514
B = 514
C = 0.042
n = 0.508
m = 0.533
strain rate = 0.001
After running the simulation,I am getting the following error:
1)THE STRAIN INCREMENT HAS EXCEEDED FIFTY TIMES THE STRAIN TO CAUSE FIRST YIELD AT 44 POINTS
I have been trying to analyse it, but could not find any solution till now.
Waiting for some update from anyone
Thanks in advance!





RE: Problem in Solver
RE: Problem in Solver
I have tried to maintain all the units in mm
So,I am sure that all units are consistent
I am using the following material values:
Youngs Modulus: 193000 (in MPa)
Poissons ratio - 0.3
Density - 8e-9 (Tonne/mm3)
A = 514 [Mpa]
B = 514 [Mpa]
C = 0.042 [Dimensionless]
n = 0.508 [Dimensionless]
m = 0.533 [Dimensionless]
strain rate = 0.001 [Dimensionless]
I am also attaching my model with boundary conditions and load below.Would be really glad if you can help me in resolving this issue.
Please let me know if you need any other details to analyse the situation.
Thanks in advance!
RE: Problem in Solver
-Are you running this in standard or explicit?
-Does your analysis terminate? or is the error you mentioned just a warning message?
-Do you get any other warning/error messages?
-What does your mesh look like - can you verify the mesh to check for warnings or poor aspect ratio?
-the load you apply to your structure - have you used consistent units for that too?
RE: Problem in Solver
Thanks for your reply again.
I have noticed the following errors:
1) 423 elements are distorted. Either the isoparametric angles are out of the suggested limits or the triangular or tetrahedral quality measure is bad. The elements have been identified in element set WarnElemDistorted.
2) The strain increment has exceeded fifty times the strain to cause first yield at 2275 points
I think,the first error will be resolved by proper fine meshing.
Also,my simulation is working fine for loads upto 100N. I am actually applying load/Node for my simulation.
Can you suggest some other mechanism for applying the load and fixing the other end? I just want to perform a tensile test.
Waiting for your reply
RE: Problem in Solver
Have you done any testing? If so how was the structure loaded/constrained in the test?