Hi, everyone. I have a problem with nonlinear simulation of elastic coupling. I want to simulate the deformation of the elastic element (rubber) with 80 Nm torque. Everytime I get a different error of the simulation. I was trying everything to get done, but that simulation it pissing me off. Can anyone help me for that? Now I will write every option and settings, that I have given to the simulation.
1. Nonlinear simulation study.
Initial time increment - 0.01;
Min - 1e-008; Max - 0.1;
No. of adjustments - 30.
2.2 Geometry nonlinearity options.
Use large displacement formulation.
2.4. Incompatible bonding options.
2.5. Advanced Options.
Control - Force;
Iterative - NR;
Integration - Newmark;
Do equilibrium iteration every - 1 step;
Maximum equilibrium iterations - 30;
Convergence tolerance - 0.001;
Maximum incremental strain - 0.01;
Singularity elimination factor - 0.
3. Material properties.
3.1. Coupling - ANSI 1020.
3.2. Elastic element - Rubber.
Model Type: Hyperelastic - Mooney Rivlin;
Poisson Ration - 0.4995;
Thermal Expansion Coefficient - 0.00066 /K;
First constant - 5.79 N/mm^2;
Second constant - 1.45 N/mm^2;
Mass Density - 1000 kg/m^3;
Tensile Strenght - 13.79 N/mm^2.
P.S. I was trying with Stress - Strain Curve, too.
4.1. Component Contacts - Global Bonded Contact with Compatible Mesh.
4.2. Contact Sets - No penetration (for all faces); Surface to Surface; Friction - 0.8.
P.S. Contact face between eight cylindrical faces and thumbs of coupling is 100 mm^2.
5.1. Half of the coupling is fixed.
5.2. On a bore of the other half of the coupling is set on Fixed Hinge.
6. External Loads.
6.1. On a bore of the same half of the coupling is set 80 Nm torque.
7.1. Standart mesh - size 6.5 mm; tolerance - 0.15 mm; draft quality mesh.
7.2. Mesh control of the Rubber - size 3 mm; a/b - 1.5.
I am attach picture of the coupling.
Coupling.JPG 125.2 KB