gatre
Mechanical
- Mar 26, 2008
- 15
Hi my friends,
I try to understand about the procedure of Dynamic, Temp-Disp, Explicit by a simple example. The model includes ball-tool (likes as ball tool of milling machine, modeled as analytical rigid part) and metal sheet (100x100x3 mm).
The ball-tool goes down 0.5 mm and slided on sheet about distance of 20 mm in certain direction. I want to consider deformation of sheet and temperature because of friction (also deformation of sheet because of that temperature)
- Sheet is meshed with element of C3D8RT
- Material is defined with: Conductivity, density, elastic, plastic (depend on temperature), expansion, specific heat, inelastic heat fration.
- Interaction properties: tangential behavior, thermal conductance, heat generation.
- Interation is surface-to-surface contact (explicit)
The rigid part is assigned a Heat Capacitance and Temperature boundary at reference point.
I run the job with above definition, the job is completed and I check the result. The sheet dont have any deformation.
And then, I try to remove all thermal properties ( Conductivity, expansion, specific heat, inelastic heat fration) to check modeling, the job is completed with deformation of sheet.
I dont know where I am wrong in definition of thermal properties. Anybody please tell me using the procedure of Dynamic, Temp-Disp, Explicit. It would be nice if I have a example about this procedure.
Thank you in advance.
Regards
Tung.
I try to understand about the procedure of Dynamic, Temp-Disp, Explicit by a simple example. The model includes ball-tool (likes as ball tool of milling machine, modeled as analytical rigid part) and metal sheet (100x100x3 mm).
The ball-tool goes down 0.5 mm and slided on sheet about distance of 20 mm in certain direction. I want to consider deformation of sheet and temperature because of friction (also deformation of sheet because of that temperature)
- Sheet is meshed with element of C3D8RT
- Material is defined with: Conductivity, density, elastic, plastic (depend on temperature), expansion, specific heat, inelastic heat fration.
- Interaction properties: tangential behavior, thermal conductance, heat generation.
- Interation is surface-to-surface contact (explicit)
The rigid part is assigned a Heat Capacitance and Temperature boundary at reference point.
I run the job with above definition, the job is completed and I check the result. The sheet dont have any deformation.
And then, I try to remove all thermal properties ( Conductivity, expansion, specific heat, inelastic heat fration) to check modeling, the job is completed with deformation of sheet.
I dont know where I am wrong in definition of thermal properties. Anybody please tell me using the procedure of Dynamic, Temp-Disp, Explicit. It would be nice if I have a example about this procedure.
Thank you in advance.
Regards
Tung.