Abstract

Low cycle fatigue (LCF) behavior of unidirectional polymer matrix composites (PMCs) reinforced with glass fibers is investigated. LCF conditions involve high loads reaching up to 90% of the material ultimate strength. LCF characterization of PMCs is carried out under tension-tension fatigue loading to identify the key physical phenomena occurring in PMCs under LCF conditions and to determine their unique characteristics. Analysis of experimental data indicates that finite strain rates, large strains and stress ratios may affect LCF behavior of PMC structures and the property degradation rates.

Volume Subject Area:
Durability and Damage Tolerance of Composite Materials and Structures
Topics:
Composite materials, Epoxy adhesives, Epoxy resins, Glass, Low cycle fatigue, Stress, Tension, Fatigue, Glass fibers, Polymer composites, Tensile strength
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Copyright © 1999 by The American Society of Mechanical Engineers
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