Stress Analysis of Composites.

Abstract

In the static analysis, the hybrid-stress finite element model is used for (1) the study of edge effects in symmetrically-stacked laminates subject to prescribed inplane strain, (2) the development and evaluation of 8-node single-layer plate bending elements for which the traction-free conditions are satisfied along a straight edge, and (3) the elastic-plastic analysis of single layer plates. An analytic study is also presented to determine the nature of the potential 2-D singularity at the intersection of a bimaterial interface and a free edge. In the dynamic analysis, the stress response in a laminated composite due to a unit step load applied at the boundary is obtained for points which are (a) at a finite distance, and (b) at a large distance, from the impact end. For the case (a), the composite may consist of a finite number of layers. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA098683

Entities

People

  • R. L. Spilker
  • T. C. T. Ting

Organizations

  • University of Illinois at Chicago

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Computational Science
  • Dynamic Response
  • Elastic Properties
  • Finite Element Analysis
  • Geometry
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanics
  • Physical Properties
  • Stress Strain Relations
  • Stresses
  • Surface Properties
  • Three Dimensional
  • Two Dimensional

Readers

  • Structural Dynamics.