RESTRAN: Residual Strength Analysis of Impact Damaged Composite Laminates. Volume II: User's Manual
Final rept Nov 1995-Nov 1997
ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
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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.
- Laminates and Composite Materials
- Computer Programming and Software