Hello, I'm using mechanical workbench 12.1 with static structural.
Im about to perform a nonlinear analysis of a HNBR sealing element that is suposed to be squeezed axially in order to expand radially to seal a pipe.
I'm quite new to nonlinear analysis. I have not aquired the test data for the HNBR material yet, so I've just played around with the nonlinear materials that ansys provide in the engineering data.
I've just played around with a cylindrical rod trying both tension and compression. The problem is that the soulution refuses to converge when the strain is only 0,3 I've used the elastomer (neo-hookean) and using the Yeoh 3rd order fitting.
The material has data up to a strain of 5,93 corresponding to 5,41Mpa
I have large deflection on, I've tried to increase the load steps and decreased the force intervall on each step.
Is there any other fancy trics so that I can evaluate the rod at higher strain rates?
Thanks
Im about to perform a nonlinear analysis of a HNBR sealing element that is suposed to be squeezed axially in order to expand radially to seal a pipe.
I'm quite new to nonlinear analysis. I have not aquired the test data for the HNBR material yet, so I've just played around with the nonlinear materials that ansys provide in the engineering data.
I've just played around with a cylindrical rod trying both tension and compression. The problem is that the soulution refuses to converge when the strain is only 0,3 I've used the elastomer (neo-hookean) and using the Yeoh 3rd order fitting.
The material has data up to a strain of 5,93 corresponding to 5,41Mpa
I have large deflection on, I've tried to increase the load steps and decreased the force intervall on each step.
Is there any other fancy trics so that I can evaluate the rod at higher strain rates?
Thanks