Probabilistic Anisotropic Failure Criteria for Composite Materials.

Abstract

A most important structural design objective today is the reliable applications of composite materials. Reliability is associated with the probability of success or failure of a particular structure and/or composite material. For this study, the reliability associated with strength was investigated. The objective was to develop a probabilistic anisotropic failure criterion and an analytical model which would account for the inherent strength scatter and enhance the structural reliability phase of composite design. This study analytically described the failure criterion and probabilistic failure states of a anisotropic composite in a combined stress state. Strength sensitivity and the failure mechanism within the domain of the combined stress space was based on a numerical simulation of a theoretical mathematical model. Keywords: Failure criterion, Failure envelope, Composite material, Probability.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA193046

Entities

People

  • Kenneth J. Nelson

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Biaxial Stresses
  • Composite Materials
  • Computer Programs
  • Distribution Functions
  • Engineering
  • Failure Mode And Effect Analysis
  • Mathematical Models
  • Mechanics
  • New York
  • Probability
  • Probability Distribution Functions
  • Probability Distributions
  • Random Variables
  • Reliability
  • Schools
  • United States

Fields of Study

  • Engineering

Readers

  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Space