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浙江大学学报(工学版)
航空航天技术     
复材非线性及渐进损伤的态型近场动力学模拟
刘肃肃,余音
上海交通大学 航空航天学院,上海 200240
Statebased peridynamic modeling of nonlinear behavior and progressive damage of composites
LIU Su su, YU Yin
School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
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摘要:

为了实现复合材料材料非线性行为在态型近场动力学的模拟,引入单参量非线性本构模型来确定态型近场动力学中力状态与变形状态之间的非线性关系.为了实现复合材料渐进损伤行为的态型近场动力学模拟,在力状态表达式中引入一个标量函数,以实现利用强度准则判断物质点之间作用力是否失效.采用动力松弛法作为数值求解方法.结果显示,模型计算得到的单向复合材料板(AS4/PEEK)的非线性应力应变曲线与试验数据吻合良好;对中心含孔复合材料板的渐进损伤模拟则表明,该模型模拟的破坏形式与已有研究的模拟结果及实验观察结果一致.探索和实现了复合材料非线性本构在态型近场动力学中的引入以及复合材料渐进损伤在态型近场动力学中的模拟.

Abstract:

 Oneparameter nonlinear constitutive model was utilized to get the relationship between deformation vector state and force vector state for the sake of nonlinear behavior modeling of composites in statebased peridynamics. A scalar function was used so that strength criterion could be utilized for the validity judgment of the interaction between particles in order to model the progressive damage of composites in statebased peridynamics.  Dynamic relaxation method was utilized as the solution method.  The calculated nonlinear stressstrain relations of unidirectional composite panels (AS4/PEEK) accorded well with the test data. The progressive damage analysis results  agreed with the experimental and simulating results of a relevant research. The method for nonlinear behavior and progressive damage modeling of composites in statebased peidynamics was explored and verified.

出版日期: 2017-01-14
:  TB 332  
基金资助:

 国家自然科学基金资助项目(11372192);上海市自然科学基金资助项目(13ZR1422200);上海市科委重大项目科技攻关资助项目(12DZ1100302).

通讯作者: 余音,女,副教授.ORCID: 0000000335870260.     E-mail: yuyin@sjtu.edu.cn
作者简介: 刘肃肃(1991-),男,硕士生,从事复合材料结构强度等研究.ORCID: 0000000221112074. E-mail: fowyaring@sjtu.edu.cn
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引用本文:

刘肃肃,余音. 复材非线性及渐进损伤的态型近场动力学模拟[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008973X.2016.05.025.

LIU Su su, YU Yin. Statebased peridynamic modeling of nonlinear behavior and progressive damage of composites. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008973X.2016.05.025.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008973X.2016.05.025        http://www.zjujournals.com/eng/CN/Y2016/V50/I5/993

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