Journal Published Online: 01 September 1988
Volume 10, Issue 3

Fiber Composite Sandwich Thermostructural Behavior: Computational Simulation

CODEN: JCTRER

Abstract

Several computational levels of progressive sophistication/simplification are described to computationally simulate composite sandwich hygral, thermal, and structural behavior.

The several computational levels of sophistication include (1) three-dimensional detailed finite element modeling of the honeycomb, the adhesive, and the composite faces; (2) three-dimensional finite element modeling of the honeycomb assumed to be an equivalent continuous, homogeneous medium, the adhesive, and the composite faces; (3) laminate theory simulation where the honeycomb (metal or composite) is assumed to consist of plies with equivalent properties; and (4) derivations of approximate, simplified equations for thermal and mechanical properties by simulating the honeycomb as an equivalent homogeneous medium. The approximate equations are combined with composite hygrothermomechanical and laminate theories to provide a simple and effective computational procedure for simulating the thermomechanical/thermostructural behavior of fiber composite sandwich structures.

Author Information

Chamis, CC
NASA Lewis Research Center, Cleveland, OH
Aiello, RA
NASA Lewis Research Center, Cleveland, OH
Murthy, PLN
NASA Lewis Research Center, Cleveland, OH
Pages: 7
Price: $25.00
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Stock #: CTR10135J
ISSN: 0884-6804
DOI: 10.1520/CTR10135J