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碳纤维/双马复合材料层板疲劳损伤累积和寿命估算
引用本文:张开达.碳纤维/双马复合材料层板疲劳损伤累积和寿命估算[J].航空学报,1997,18(5):623-624.
作者姓名:张开达
作者单位:西北工业大学504教研室, 西安, 710072
摘    要:给出了T300/QY8911材料单向板和多向层合板在不同应力水平下的拉-拉疲劳试验结果,提出了以疲劳应变累积为基础的损伤累积模型和相应的寿命估算方程。对于以纤维断裂和基体拉伸开裂损伤累积为控制因素的层板,理论结果与试验值十分吻合。

关 键 词:复合材料层合板  疲劳  损伤累积  
收稿时间:1997-01-15
修稿时间:1997-04-15

FATIGUE DAMAGE CUMULATION AND LIFE PREDICTION FOR CARBON/BISMALEIMIDE COMPOSITE LAMINATES
Zhang,Kaida.FATIGUE DAMAGE CUMULATION AND LIFE PREDICTION FOR CARBON/BISMALEIMIDE COMPOSITE LAMINATES[J].Acta Aeronautica et Astronautica Sinica,1997,18(5):623-624.
Authors:Zhang  Kaida
Institution:Faculty 504, Northwestern Polytechnical University, Xi'an, 710072
Abstract:A fatigue damage cumulation model, which is based on the cumulative strain during cyclic loading, is proposed for predicting the fatigue life of carbon/ bismaleimide composite laminates. If the major mode of failure is controlled by fiber fracture or transverse cracking, the analytical way of this paper can evaluate excellently the cumulative damage and predict successfully the fatigue life of composite laminates. Theoretical results are verified experimentally by unidirectional or cross ply laminates under the single stress or multi stress level fatigue tests.
Keywords:composite laminates  fatigue  damage cumulation  
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