Matrix and fibermatrix interface cracking in composite materials
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2016 Elsevier Ltd. All rights reserved. This chapter focuses on modeling of failure mechanisms in polymer matrix unidirectional (UD) composites that do not involve failure of fibers. The failure initiation resulting in crack formation in matrix and at fiber-matrix interfaces in UD composites under in-plane loading is examined. Recognizing that the local triaxial stress fields govern the failure initiation, modeling approaches to different possible crack formation processes are discussed.