Affiliation:
1. Schools of Materials Science and Engineering, University of Bath
Abstract
Following an earlier comparative investigation of the tensile fatigue response, in terms of stress versus log life curves, of three epoxy-resin-based laminates of 0/90 lay-up and reinforced with carbon, glass and Kevlar-49 fibres, the authors now present a study of the accumulation of fatigue damage in terms of the residual strengths of the fatigued laminates. A stress-independent parametric relationship between normalized stress and normalized number of cycles is found to describe the behaviour of all three composites, suggesting a single major mode of fatigue damage despite the widely different mechanical characteristics of the different materials. The model is a two-parameter power law model, derived from a consideration of the appropriateness of various curve-fitting methods, and permits the incorporation of all modes of damage accumulation, from gentle ‘wear-out’ to ‘sudden death’ simply by the adjustment of this pair of power law exponents.
Reference11 articles.
1. The environmental fatigue behaviour of reinforced plastics
2. Cyclic loading and the strength of dough moulding compounds
3. Howe R. J., Owen M. J. Accumulation of damage in a glass-reinforced plastic under tensile and fatigue loading. Proc. 8th Int. Reinforced Plastics Congress, Brighton, 1972, pp. 137–148 (British Plastics Federation, London).
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