【摘要】 对含孔复合材料层合板的破坏模式和拉伸强度进行了研究,考查了孔的直径和形状对层合板强度的影响.通过实验研究,测量出含孔层合板的强度.利用有限元软件ABAQUS的子程序USDFLD建立了逐渐损伤失效模型,对层合板的强度进行了数值模拟.研究结果表明,数值模拟得到的强度值和实验测量的强度值吻合较好,文中建立的数值模型可以有效地预测含孔层合板的强度.更多还原

【Abstract】 The failure modes and tensile strength of composite laminated plate containing a hole are studied in the present work,and the influences of hole’s diameter and shape on the tensile strength of laminated plate are investigated.The strengths of laminated plates with circle,square and diamond holes are measured experimentally.A progressive failure model(PFM) is developed with finite element software ABAQUS through the subroutine USDFLD,the failure modes and tensile strength of laminated plates are simulated by this PFM.The results show that the simulated strengths agree well with the measured ones,and the PFM in the present work can effectively predict the tensile strength of laminated plates with holes.更多还原