A fracture control plan for composite structures

Woochul Kim, C. K.H. Dharan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A fracture control plan for composite structures is proposed. Such a plan provides for a fail-safe approach to the design of composite primary structures. It integrates inspection techniques with proof testing to define the minimum flaw that can exist in a structure without failure. While crack propagation of a general flaw in composites is a complex problem, a specific flaw such as delamination is a common failure mode in typical engineering laminates. Using linear fracture mechanics, it is relatively straightforward to calculate the tendency for a delamination flaw to propagate. This approach, coupled with appropriate inspection techniques, constitutes the basis of the proposed plan. Currently, no fracture control plans exist for composite structures. The proposed plan is envisaged as a first step toward assuring the design of damage-tolerant composite structures.

Original languageEnglish
Pages (from-to)305-324
Number of pages20
JournalEngineering Fracture Mechanics
Volume34
Issue number2
DOIs
Publication statusPublished - 1989 Jan 1

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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