Accession Number:

ADA393268

Title:

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

Descriptive Note:

Final rept Nov 1995-Nov 1997

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

2001-07-01

Pagination or Media Count:

159.0

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 users 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.

Subject Categories:

  • Laminates and Composite Materials
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE