Stochastic matrix-cracking model for textile reinforced cementitious composites under tensile loading

摘要: When cementitious composites are loaded in tension, cracks initiate and propagate at very low stress levels, leading to a non-linear constitutive behaviour. A first attempt model this behaviour (the well-known ACK-model) was done by Aveston et al. [1] Kelly [2]. However, according several authors [3–10], the main limitation of is stochastic nature strength matrix, which not included ACK-model. Based on work Curtin [7, 10], presenting statistical treatment matrix crack evolution unidirectionally reinforced ceramic micro-composites with single fibres; two-parameter Weibull proposed paper describe strength. It shown 10] that one can determine parameters pure specimens transfer them composite, if fibre used. it has been determined case when textile reinforcement used matrix. As will be paper, cracking cannot simply transferred from matrices bundles. The necessary modifications make useful for textile-reinforced cements discussed.