Description: Noise in contact stresses and element stresses near a contact interface has been reduced in many cases involving second-order elements with the traditional node-to-surface approach (see also “Surface-to-surface small-sliding contact accounting for thickness,” Section 11.1, regarding improvements in contact stress accuracy with a surface-to-surface approach for small-sliding contact). These improvements apply to both small- and finite-sliding contact under the following circumstances:

A comparison of Figure 11–2 (Version 6.4 results) and Figure 11–3 (Version 6.5 results) shows a typical reduction in element stress noise near a contact interface in Version 6.5. This example uses CAX8 elements and augmented Lagrangian contact.

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