Impact Behavior of Polymeric Matrix Composite Materials.

Abstract

The problem of foreign-object impacts of jet-engine fan-blades is studied by two approaches. First, the overall response of a blade-like structure is predicted by a one-degree-of-freedom impact model in which the blade is treated as a cantilever beam or plate. Design curves are presented for finding the peak stress levels in many impact situations, including both hard and soft (fluid) impactors. Second, the local response to an edge impact is studied using a finite-difference method based on anisotropic constitutive relations. In addition, experiments have been conducted to compare with each method. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA038188

Entities

People

  • Pei Chi Chou
  • Richard W. Mortimer

Organizations

  • Drexel University

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Cantilever Beams
  • Composite Materials
  • Elastic Properties
  • Engineering
  • Explosive Charges
  • Materials
  • Materials Laboratories
  • Mechanical Engineering
  • Mechanics
  • Pressure Distribution
  • Structural Response
  • Three Dimensional
  • Two Dimensional
  • United States
  • Vibration
  • Waves

Readers

  • Structural Dynamics.
  • Structural Health Monitoring of Composite Structures.