Environmental effects on unsymmetric composite laminates

Journal Article · Mon Jul 01 04:00:00 EDT 1991 · Journal of Thermoplastic Composite Materials; (United States)

OSTI ID:5838079

Ochoa, O O; Ross, G R ^[1]

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1. Texas A M University, College Station (USA)

In order to take full advantage of the tailorability of composite materials, the response of unsymmetric composite laminates is studied in an integrated analytical/experimental program. The laminates tested include a symmetric and an unsymmetric layup constructed of the IM7/977-2 graphite epoxy material system. The test conditions simulated include both ambient and hot/wet conditions in addition to tension and torsion. A quasi-three-dimensional finite element program is used to evaluate the stress-strain response of these laminates. These responses are compared with experimental observations. 14 refs.

• OSTI ID: 5838079
• Journal Information: Journal of Thermoplastic Composite Materials; (United States), Journal Name: Journal of Thermoplastic Composite Materials; (United States) Vol. 4; ISSN JTMAE; ISSN 0892-7057
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
AMBIENT TEMPERATURE
ASYMMETRY
CARBON
COMPOSITE MATERIALS
ELEMENTAL MINERALS
ELEMENTS
ENVIRONMENT
EPOXIDES
FAILURES
FINITE ELEMENT METHOD
GRAPHITE
MATERIALS
MECHANICAL PROPERTIES
MINERALS
NONMETALS
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
STRESS ANALYSIS
STRESSES
TENSILE PROPERTIES
THERMAL STRESSES