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The theory of micro-mechanics of failure aims to explain the failure of continuous fiber reinforced composites by micro-scale analysis of stresses within each constituent material (such as fiber and matrix), and of the stresses at the interfaces between those constituents, calculated from the macro stresses at the ply level.〔 As a completely mechanics-based failure theory, the theory is expected to provide more accurate analyses than those obtained with phenomenological models such as Tsai-Wu〔 and Hashin〔〔 failure criteria, being able to distinguish the critical constituent in the critical ply in a composite laminate. ==Basic concepts== The basic concept of the micro-mechanics of failure (MMF) theory is to perform a hierarchy of micromechanical analyses, starting from mechanical behavior of constituents (the fiber, the matrix, and the interface), then going on to the mechanical behavior of a ply, of a laminate, and eventually of an entire structure. At the constituent level, three elements are required to fully characterize each constituent: * The constitutive relation, which describes the transient, or time-independent, response of the constituent to external mechanical as well as hygrothermal loadings; * The master curve, which describes the time-dependent behavior of the constituent under creep or fatigue loadings; * The failure criterion, which describes conditions that cause failure of the constituent. The constituents and a unidirectional lamina are linked via a proper micromechanical model, so that ply properties can be derived from constituent properties, and on the other hand, micro stresses at the constituent level can be calculated from macro stresses at the ply level. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Micro-mechanics of failure」の詳細全文を読む スポンサード リンク
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