Learning Forum

[mukeshk]

In my structural, thermal and vibrational analysis, I am using elastomer as bonding element between two different material. How should I model this?, solver ask for constant E but the material doesn't have constant E. And I dont have Endurica.

Is there any way i can model this successfully without using endurica? Kindly help.

Also I want to know, how an analyst decide weather my loading is proportional loading or non-proportional loading? Is there anyway in ansys I can check this loading type?

Analysis type and there order is:

1. In CFD we found the pressure value for a certain speed
2. then we used the CFD solution in static structural and applied the same pressure force
3. after static structural we uses the solution in transient thermal analysis followed by modal and random vibration

How should I decide, I have proportional loading or non-proportional loading in the above mentioned order?

[Armin]

Hi Mukesh,

In structural mechanics, proportional loading is referred to cases when the principal stresses ratios and directions remain constant. You can extract stress components of some elements in the region of interest in your model and see if this condition is satisfied.

Regarding the other question, I'm not familiar with Endurica but please see if the training course below on hyperelasticity is helpful: 

Topics in Hyperelasticity - ANSYS Innovation Courses

[mukeshk]

Hi Armin,

Thanks for your response!

I tried these course and I used the same file and material data provided by ansys 

/courses/index.php/courses/topics-in-hyperelasticity-using-ansys-mechanical/lessons/how-to-handle-element-distortion-errors-in-hyperelastic-materials-lesson-3/

Files and problem provided by ansys got solved on my pc, but when I'm using same material with my assembly it is giving me error "elasticity is required" (refer attachment)

why it is not solving my problem, I'm unable to understand?

Kindly help.

[peteroznewman]

Read this discussion and see if that helps you to understand this problem.

/forum/forums/topic/elastomer-sample-neo-hookean-contain-invalid-property-data/

The conversion from the old website to the new website was flawed. This discussion is littered with the letter n where there used to be a newline character.

[mukeshk]

Hi,

Thankyou so much, It worked.