On Mixed-Mode Fracture
This paper reports the authors recent work on mixed-mode fracture in fiber-reinforced laminated composite beams and plates.The work considers the so-called one-dimensional fracture which propagates in one-dimension and consists of only mode I and mode II fracture modes.Fracture interfaces are assumed to be either rigidly or cohesively bonded.Analytical theories are developed within the contexts of both classical and first-order shear deformable laminated composite theories.When a rigid interface is assumed for brittle fracture,there are two sets of orthogonal pure modes in classical theory,and there is only one set of orthogonal pure modes in shear-deformable theory.A mixed-mode fracture is partitioned by using these orthogonal pure modes.The classical and shear deformable partitions can be regarded as either lower or upper bound partitions for 2D elasticity,and hence approximate 2D elasticity partition theories are developed by ‘averaging the classical and shear deformable partitions.When cohesively bonded interfaces are assumed for adhesively joined interfaces,the classical and shear deformable theories give the same pure modes.Approximate partition theories are also developed for 2D elasticity.Numerical investigations demonstrate excellent agreement with the corresponding analytical theories.Experimental data considered shows that the failure locus is strongly linear.
Composite Energy release rate Failure locus Mixed-mode fracture Orthogonal pure modes
Christopher Harvey Liangliang Guan Huimin Xie Simon Wang
Department of Aeronautical and Automotive Engineering,Loughborough University,Loughborough,LE11 3TU, Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China
国际会议
北京
英文
1-10
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）