Constitutive Relations of a Damaged Composite Laminate with Nonsymmetric Constrained Cracking

The constitutive relations are developed for a damaged composite laminate in which a transversely cracked lamina is nonsymmetrically constrained by neighboring layers. The derivation is based on an approximate elasticity theory approach. The stiffnesses variation in cracked laminates is expressed as...

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Bibliographic Details
Published in:Journal of reinforced plastics and composites 1995-07, Vol.14 (7), p.740-751
Main Authors: Yu, Hua, Qingzhi, He, Zhengneng, Li, Changhe, Kou
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Forms of application and semi-finished materials
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Laminates
Physics
Polymer industry, paints, wood
Solid mechanics
Structural and continuum mechanics
Technology of polymers
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Summary:The constitutive relations are developed for a damaged composite laminate in which a transversely cracked lamina is nonsymmetrically constrained by neighboring layers. The derivation is based on an approximate elasticity theory approach. The stiffnesses variation in cracked laminates is expressed as a function of the crack density. The stiffness degradation for the cracked laminates with more general layups can be predicted by using these relations.
ISSN:0731-6844
1530-7964
DOI:10.1177/073168449501400705