StressCheck Tutorial: Influence of Contact Zone Mismatch on Local Stresses

Abstract: Quantitative measures of the influence of meshing strategies and contact zone mismatches for a simple pin/sleeve bushing assembly.  Note: in cases such as this, we observe the “knife edge” effect on the local contact stresses, in which stress “jumps” occur where contact pressure suddenly goes from non-zero to zero.  These “jumps” are stress singularities associated with the mathematical model.

Cases studied:

• Independent automeshes for pin and bushing, pin contact zone extended outside of pin/bushing overlap region.
• Matching automeshes at pin/bushing termination, pin contact zone extended outside of pin/bushing overlap region.
• Matching automeshes at pin/bushing termination, matching pin/bushing contact zone areas.