| 单向复合材料高应变率下材料特性的研究(英文) |
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| 引用本文： | 王玮波,R.A.SHENOI.单向复合材料高应变率下材料特性的研究(英文)[J].船舶力学,2009,13(3). |
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| 作者姓名： | 王玮波 R.A.SHENOI |
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| 作者单位： | 1. 中国船舶科学研究中心，江苏无锡,214082
2. School of Engineering Sciences，University of Southampton，S017 1BJ，UK |
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| 摘 要： | 在船舶领域,复合材料及夹芯复合材料板梁结构已大量应用在舰船结构中,尤其游艇及复合材料高速艇上.在运行过程中,这些结构有时很可能会受到如砰击、碰撞等动态载荷或高速冲击载荷.然而到目前为止,大多数的结构设计所用到的材料特性仍基于低应变率情况下的准静态测试结果.该文研究了高速艇等结构中的纤维增强复合材料高应变率情况下的材料特性,通过引入一种粘弹性模型来模拟并分析研究对象.并在世界先进的INSTRON高应变率材料试验机上设计并完成了相关试验,验证了该枯弹性模型、确定了模型中的材料参数.该粘弹性模型然后被用来研究分析应变率对单向复合材料机械特性的影响.
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| 关 键 词： | 船舶结构 纤维增强复合材料 强度 变形 动态载荷 高应变率特性 |
Investigating High Strain Rate Behaviour of Unidirectional Composites by a Visco-Elastic Model |
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| WANG Wei-bo,R.A.SHENOI.Investigating High Strain Rate Behaviour of Unidirectional Composites by a Visco-Elastic Model[J].Journal of Ship Mechanics,2009,13(3). |
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| Authors: | WANG Wei-bo RASHENOI |
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| Institution: | 1 China Ship Scientific Research Centre;Wuxi 214082;China;2 School of Engineering Sciences;University of Southampton;Southampton;SO17 1BJ;UK |
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| Abstract: | Modelling the high strain rate (HSR) behaviour of glass fibre-reinforced composite materials such as used in high-speed craft is presented.A visco-elastic model consisting of an elastic element connected parallel with a generalised Maxwell model was developed. The related experiments are made on a high rate test machine to determine the material parameters in the model. The model is then used to investigate the effects of HSR on the mechanical properties of unidirectional composites. |
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| Keywords: | ship structures fibre-reinforced composites strength deformation dynamic loading high strain rate behaviour |
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