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I'm modeling rock fracture problem with cohesive element. I konw the propertiey of the solid element around the fracture because we can measure it (rock sample) in the lab. but as regard to how to define the propeties of cohesive element, I'm completely lost.



in fact, the cohseive element is a fictitious one, not a real matearial in the physical world, we can't mearsure its propety by physical means. then how can we know what parameters we should enter ?



need your help, thanks

How to model SMA wire embeded in composite beam using Abaqus using 3D solid extrusion?

The model is cantilever beam of composite in which the SMA wire is embeded in neutral axis of the beam.

I only simulate deflection.

The simulation without SMA has been succesfully done which show deflection when applied load at the tip( free end)

How to model SMA wire embeded in composite beam using Abaqus using 3D solid extrusion?

The model is cantilever beam of composite in which the SMA wire is embeded in neutral axis of the beam.

I only simulate deflection.

The simulation without SMA has been succesfully done which show deflection when applied load at the tip( free end)

 i am doing FEA of spot welding with ansys.i am working with plane42 and plane67.how to get iterative solution for joule heating. please help me.

with regards,fatemeh mirzaei

Hi!



I'm already simulating a shape memory alloy behavior with the aid of the HETVAL subroutine, but I'd like to use UMATHT instead, since the HETVAL can't simulate correctly heat absortion(cooling down).



I've tried to add the required values for UMATHT without achieving a correct phase fraction simulation, and some times even no compilation of the .for file.



Is there any other examples that uses UMATHT besides the Stefan problem?

Any other recommendation about HETVAL to UMATHT migration?



Thanks in advance!

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The software version I installed and used is 3.2 version. I created a
3-D brick and meshed it in ANSYS 14. Then, I output the .cdb file and
convert it using OSM 3.2 software. After that, I started FRANC3D 3.2
software and follow the guidance in the "Thin Shell
Tutorial v2.6". It was said that I have to check the surface coordinate
system by changing direction of "GREEN BARS to the Same X direction".