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Title: Shear effects on energy dissipation from an elastic beam on a rigid foundation

This paper describes the energy dissipation arising from microslip for an elastic shell incorporating shear and longitudinal deformation resting on a rough-rigid foundation. This phenomenon is investigated using finite element (FE) analysis and nonlinear geometrically exact shell theory. Both approaches illustrate the effect of shear within the shell and observe a reduction in the energy dissipated from microslip as compared to a similar system neglecting shear deformation. In particular, it is found that the shear deformation allows for load to be transmitted beyond the region of slip so that the entire interface contributes to the load carrying capability of the shell. The energy dissipation resulting from the shell model is shown to agree well with that arising from the FE model, and this representation can be used as a basis for reduced order models that capture the microslip phenomenon.
 [1] ;  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Univ. of Akron, Akron, OH (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0021-8936; 607245
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Applied Mechanics
Additional Journal Information:
Journal Volume: 83; Journal Issue: 1; Journal ID: ISSN 0021-8936
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
Country of Publication:
United States
42 ENGINEERING; stress; energy dissipation; shear (mechanics); deformation; friction; shells; cycles; finite element model; surface roughness