Elements tested
C3D8
C3D10
C3D10HS
C3D20
CPE3
CPE4
CPE6
CPE8
ISL21A
ISL22A
ProductsAbaqus/Standard Elements testedC3D8 C3D10 C3D10HS C3D20 CPE3 CPE4 CPE6 CPE8 ISL21A ISL22A Features testedContact surface and slide line extensions for small- and finite-sliding. Problem descriptionIn small-sliding contact extending the main surface allows the secondary node to find an intersection with the main surface when the secondary node lies slightly outside the perimeter of the main surface at the start of the analysis. The small-sliding models consist of a stacked block arrangement in which the nodes of the secondary surface extend beyond the perimeter of the main surface at the start of the analysis. In finite-sliding contact extending the main surface can prevent nodes from “falling-off” or getting trapped behind the main surface. The finite-sliding models are similar to the small-sliding models, except that the secondary surface lies within the perimeter of the main surface at the start of the analysis. A second step moves the secondary surface beyond the perimeter of the main surface but within the extension zone. Material:
Results and discussionThe small-sliding tests verify that an intersection is found and that the proper contact clearance is calculated at the start of an analysis. The contact clearances, slip distances, and contact pressures are used to verify the finite-sliding results when a secondary node enters the extension region. Input files
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