Browsing by Author "Alsharif, Ziyad Khalid Yahya"

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    Micromechanical Modelling of Transverse Failure in Unidirectional Fibre-Reinforced Composites: Influence of Fibre Volume Fraction and Interfacial Properties
    (Saudi Digital Library, 2025) Alsharif, Ziyad Khalid Yahya; Hou, Xiaonan
    This study investigates the transverse tensile behaviour and failure mechanisms of unidirectional fibre-reinforced polymer composites with fibre volume fractions of 30%, 40%, 45%, and 50% using a 2D finite element framework. Representative volume elements were developed with an explicitly modelled fibre-matrix interface, where a cohesive zone model captured interfacial debonding and the extended finite element method simulated crack initiation and propagation. The analysis revealed that increasing fibre volume fraction enhanced transverse stiffness but altered the failure mode. The 50% fibre volume fraction configuration achieved the highest strength but fractured abruptly at low strain, while the 45% case exhibited the greatest failure strain with a balanced strengthening response. Stress contour and damage maps showed that higher fibre volume fractions intensified interfacial stresses, leading to earlier crack coalescence along fibre-matrix boundaries
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