Prediction of the biaxial failure strength of composite laminates with unit cell analytic model
A new method to predict the ultimate strength of fiber reinforced composites under arbitrary load condition is introduced.The micromechanics strength theory is used to perform the final failure prediction of composite laminates.The theory is based on unit cell analytic model which can provide the ply composite material properties by only using the constituent fiber and matrix properties and the laminate geometric parameters without knowing any experimental information of the laminates.To show that this method is suitable for predicting strength of composite laminates,the micromechanics strength theory is ranked by comparing it with all the micro-level and the best two macro-level theories chosen from the World Wide Failure Exercise.The results show that this method can be used for predicting strength of any composite laminates and provide a direct reference for composite optimum design.
Composites Strength Failure criteria Unit cell analytic model
Lin Zhao Boming Zhang Xinlin Qing Huimin Xie
Beijing Aeronautical Science & Technology Research Institute of COMAC,Beijing 102211,China;School of School of Materials Science and Engineering,Beihang University,Beijing 100191,China Beijing Aeronautical Science & Technology Research Institute of COMAC,Beijing 102211,China School of Aerospace,Tsinghua University,Beijing 100083,China
国内会议
北京
英文
1221-1229
2013-09-10（万方平台首次上网日期，不代表论文的发表时间）