RESTRAN: Residual Strength Analysis of Impact Damaged Composite Laminates. Volume II: User's Manual

Abstract

A general predictive methodology for determining residual strength in impact damaged composite laminates has been developed and incorporated into a computer code designated RESTRAN (REsidual STRength ANalysis). RESTRAN is a finite element based design tool that can analyze composite structures with arbitrary three-dimensional (3-D) geometry, loading and support conditions, material properties, and initial material and delamination damage. Material failure modes are predicted using a robust suite of failure criteria and damage laws. Structural failure due to sequential sublaminate buckling of delaminated layers is also accounted for. A progressive failure analysis is performed until ultimate structural failure is predicted, thereby yielding an estimate of the residual strength. This report contains a user's manual for the RESTRAN program with complete descriptions of input statements and program output. Several examples are shown to illustrate the use of the RESTRAN computer code.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2001
Accession Number
ADA393268

Entities

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Civil Engineering
  • Composite Materials
  • Computer Programming
  • Computer Programs
  • Computers
  • Failure Analysis
  • Failure Mode And Effect Analysis
  • Geometry
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanics
  • Military Research
  • Three Dimensional
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Structural Health Monitoring of Composite Structures.