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STRENGTH PREDICTION AND DAMAGE MECHANISMS OF GLASS/EPOXY WOVEN LAMINATES WITH CIRCULAR HOLES
Author(s) -
Xiao J. Y.,
Bathias C.
Publication year - 1994
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1994.tb00241.x
Subject(s) - orthotropic material , materials science , composite material , epoxy , isotropy , composite laminates , monotonic function , structural engineering , finite element method , mathematics , composite number , mathematical analysis , engineering , physics , quantum mechanics
— The notched strengths of four woven laminates (two orthotropic, one quasi‐isotropic and one square symmetrical) under monotonic uniaxial loading, predicted with the point and average stress criteria, the two parameter criterion, the progressive degradation model, and the initial and improved point and minimal strength models, have been respectively compared with the experimental data. The damage mechanisms for the laminates were tentatively studied. The results show that, for minimal experimental information, the notched strengths predicted by the improved minimal strength models are the most precise and the progressive degradation model can numerically illustrate the damage mechanisms in detail. The damage mechanisms of the woven laminates were found to be very different from those of non‐woven laminates.