The effects of creep and fatigue stress ratio on the long-term behaviour of angle-ply CFRP

J. Petermann; K. Schulte

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The effects of creep and fatigue stress ratio on the long-term behaviour of angle-ply CFRP

机译：蠕变和疲劳应力比对角板CFRP长期性能的影响

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The long-term behaviour of ±45 deg-angle-ply laminates of carbon/epoxy was studied. Due to the absence of 0 deg-layers angle-ply laminates are subject to cyclic creep. The creep strain evolution was investigated by experimental and analytical means. To predict the total strain depending on the applied stress level and load time an empirical creep law based on power law functions was adopted. Good agreement between experiment and prediction was found. The interaction between creep and fatigue was used to estimate a lower bound of the endurance limit based n creep predictions exclusively.

机译：研究了±45度角的碳/环氧树脂层压板的长期性能。由于不存在0度层，因此层角层压板会经历周期性蠕变。通过实验和分析手段研究了蠕变应变的演变。为了根据施加的应力水平和加载时间来预测总应变，采用了基于幂律函数的经验蠕变律。实验和预测之间发现了很好的一致性。蠕变和疲劳之间的相互作用仅用于基于n个蠕变预测来估计耐力极限的下限。

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《Composite Structures》 |2002年第4期|p.205-210|共6页
作者
J. Petermann; K. Schulte;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
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2. Creep effects on tension-tension fatigue behavior of angle-ply GFRP composite laminates [J] . Movahedi-Rad A. Vahid, Keller Thomas, Vassilopoulos Anastasios P. International Journal of Fatigue . 2019,第JUNa期

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4. CREEP AND STRESS RELAXATION OF ANGLE-PLY CFRP LAMINATES AT HIGH TEMPERATURE AND NUMERICAL SIMULATIONS [C] . Y. Masuko, M. Kawai International Conference on Composite Materials . 2003

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The effects of creep and fatigue stress ratio on the long-term behaviour of angle-ply CFRP

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