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Progressive Damage along Kink Bands in Fiber-Reinforced Composite Blocks under Compression

Department of Engineering Mechanics Tsinghua University Beijing 100084 China

Yue-Guang Wei

Department of Engineering Mechanics Tsinghua University Beijing 100084 China

Progressive damage along a kink band plays an important role for damage characterization of fiber-reinforced materials under compression. We approach this prob lem from a set of homogenized field equations which set up the criterion of initial surface instability. Further progression of the bifurcated kink bands into the composite blocks is formulated under damage induced bridge model, within the framework of J integral.

Key Words: progressive damage • kink bands • fiber-reinforced composites • surface instability • compressive toughness.

International Journal of Damage Mechanics, Vol. 1, No. 1, 80-101 (1992)
DOI: 10.1177/105678959200100105


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