feifei1024
New member
- May 31, 2012
- 5
Hi guys
I am currently doing my final year project, which is about simulating advanced sandwich structures. My aim now is to simulate the debonding between the facesheet and the foam. I have stayed in front of computer for 3 days and i couldn't solve my problem
I first create a single solid model and partition it with sections for facesheet and foam. After meshing, I create an orphan mesh and use the mesh edit tool to embed 2 zero-thickness cohesive layers on the interior surfaces. I assign the cohesive section based on seperation and traction response. The step module I used is static general type with time period 0.5, increment size: (0.001,5e-5,0.5). I used full integration, because I found when I used reduced integration, the artificial strain energy ALLAE is huge..
When I run my analysis, It always stops as the damage variables(SEDG) of cohesive elements reach to 1, though i have introduce the viscosity ~0.001. I want to get the full analysis as possible. I have tried number of different ways, the outcomes are still not satisfied. Any one can help me with this issue. I can send u my file if you want.
Thank you very much!!!!
I am currently doing my final year project, which is about simulating advanced sandwich structures. My aim now is to simulate the debonding between the facesheet and the foam. I have stayed in front of computer for 3 days and i couldn't solve my problem
I first create a single solid model and partition it with sections for facesheet and foam. After meshing, I create an orphan mesh and use the mesh edit tool to embed 2 zero-thickness cohesive layers on the interior surfaces. I assign the cohesive section based on seperation and traction response. The step module I used is static general type with time period 0.5, increment size: (0.001,5e-5,0.5). I used full integration, because I found when I used reduced integration, the artificial strain energy ALLAE is huge..
When I run my analysis, It always stops as the damage variables(SEDG) of cohesive elements reach to 1, though i have introduce the viscosity ~0.001. I want to get the full analysis as possible. I have tried number of different ways, the outcomes are still not satisfied. Any one can help me with this issue. I can send u my file if you want.
Thank you very much!!!!