If the loads applied to a laminate are sufficiently high then the strength of the material is exceeded and the laminate fails. The approach where the principal stresses in a ply are compared with the ultimate strength values in the respective directions is the maximum stress theory. The approach where principal strains in a ply are compared with the ultimate strain values in the respective directions is the maximum strain theory. The Tsai‐Wu failure criterion was a result of an attempt to mathematically generalize the Tsai—Hill failure criterion creating a curve fit based on tensor theory and accounting for the fact that composites have different strengths in tension and compression. The formulation of failure of composites by Puck is one of the best attempts to combine phenomenological observations with thorough understanding of the behaviour of composite materials during fracture.
Review of Laminate Strength and Failure Criteria
2013-05-17
9 pages
Article/Chapter (Book)
Electronic Resource
English
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