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This paper presents a method for modelling initiation and propagation of damage in composites under fatigue loading in a single, coherent analysis using cohesive interface elements. Damage initiation laws based on SN-curves for initiation are applied to all interface elements within a zone of characteristic length, the so-called initiation zone. The formulation allows for a fully automated identification...
A series of tests were conducted to act as validation cases for the numerical model developed in part I of this paper to predict the initiation and propagation of damage in composite materials. The onset of matrix cracking in [0 2 /θ 4 ] s specimens under tension–tension fatigue loading was studied using acoustic emission (AE) and dye-penetrant enhanced X-rays. The number of...
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