Rigid block between two cyllinders Ansys apdl

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The discussion focuses on analyzing two cylinders made of different materials with a rigid block between them using ANSYS APDL. The user is experiencing stress discontinuity at the interface, where the stress at the outer radius of the inner cylinder does not match the stress at the inner radius of the outer cylinder. Suggestions include using a contact condition instead of directly connecting nodes, as this may help maintain stress continuity while allowing for displacement discontinuity. The user aims to implement a specific displacement condition but finds that using the CE command results in doubled stress values. The challenge lies in achieving the desired analytical conditions without compromising stress continuity.
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i want to analyse a two cylinders of different materials between which a rigid block of certain width exists. I am using CE command to connect the nodes of both the cylinders and the constant in Ce equation denotes the width of the the rigid block. When i solve the above problem , stress continuity is not maintained in both cylinders.that is, the stress at the outer radius of the inner cylinder is not equal to the stress at the inner radius of the outer cylinder.
 
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Have you considered using a contact condition instead of directly connecting nodes? If it is a tangent condition it may be only a single node will be connected, which will result in a stress discontinuity due to the infinitesimal contact area.
 
Mech_Engineer said:
Have you considered using a contact condition instead of directly connecting nodes? If it is a tangent condition it may be only a single node will be connected, which will result in a stress discontinuity due to the infinitesimal contact area.
I am using CE so that i can implement the following condition:
UX1=n*UX2;
analytically i only want displacement discontinuity but when Implement CE ,the stress also becomes double . I want to maintain stress continuity but want displacement discontinuity.
 
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