Frictionless Contact of Composite Laminatesby Martin S. Lane, Univ of Virginia, Charlottesville, United States,
Marek-Jerzy Pindera, Univ of Virginia, Charlottesville, United States,
Document Type: Proceeding Paper
Part of: Mechanics Computing in 1990's and Beyond
Abstract: An approximate solution technique for determination of contact stress distribution under a curved, rigid punch indenting an arbitrary laminated composite plate is outlined. The individual layers can be isotropic, orthotropic or monoclinic. In order to accommodate the presence of monoclinic or off-axis plies, generalized plane deformation formulation is employed. Results are presented that illustrate the effect of aspect ratio and lamination configuration on the contact profile and load versus contact length response. It is demonstrated that the presence of off-axis plies may lead to separation between the punch and the substrate for sufficiently long laminates when the contact length reaches a critical value.
Subject Headings: Laminated materials | Contact mechanics | Stress distribution | Plates | Curvature | Arbitration | Isotropy
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