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

Journal Article · Tue Oct 20 04:00:00 EDT 2015 · Journal of Applied Mechanics

DOI:https://doi.org/10.1115/1.4031764· OSTI ID:1238650

Brink, Adam Ray ^[1]; Quinn, D. Dane ^[2]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
2. Univ. of Akron, Akron, OH (United States)

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.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC04-94AL85000
• OSTI ID: 1238650
• Report Number(s): SAND--2015-8482J; 607245
• Journal Information: Journal of Applied Mechanics, Journal Name: Journal of Applied Mechanics Journal Issue: 1 Vol. 83; ISSN 0021-8936
• Publisher: ASME
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
cycles
deformation
energy dissipation
finite element model
friction
shear (mechanics)
shells
stress
surface roughness