- #1
Pakhoz
- 2
- 0
Hi everyone! I am doing a simulation of threaded connection in ANSYS workbench and have some problem.
In this 2D model, the initial make-up is modeled by setting an "initial overlap" (shown in figure 1).
This is how I did:
- The initial contact between pin and box as "frictional" with coefficient of friction 0.03. Formulation used is Augmented Lagrange. With interface treatment: offset (ramped) 0.08 inch.
The other constraints/ loadings:
- The upper part (box) is restricted by "frictionless support" on its edge on the right to ensure it can't move along x direction
- The lower part (pin) is restricted by "frictionless support" on its bottom edge to ensure it moves only along x direction.
- A pressure load is added on the left edge of the pin.
My question:
Is the way I address the initial contact right ? How can I get the stress induced by this initial contact ? And why this model is always not convergent ? Can anybody give me some advice?
Thank you for your suggestions.
- Pakho Cheng
In this 2D model, the initial make-up is modeled by setting an "initial overlap" (shown in figure 1).
This is how I did:
- The initial contact between pin and box as "frictional" with coefficient of friction 0.03. Formulation used is Augmented Lagrange. With interface treatment: offset (ramped) 0.08 inch.
The other constraints/ loadings:
- The upper part (box) is restricted by "frictionless support" on its edge on the right to ensure it can't move along x direction
- The lower part (pin) is restricted by "frictionless support" on its bottom edge to ensure it moves only along x direction.
- A pressure load is added on the left edge of the pin.
My question:
Is the way I address the initial contact right ? How can I get the stress induced by this initial contact ? And why this model is always not convergent ? Can anybody give me some advice?
Thank you for your suggestions.
- Pakho Cheng