• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >A study of flattening process of deployable composite thin-walled lenticular tubes under compression and tension
【24h】

A study of flattening process of deployable composite thin-walled lenticular tubes under compression and tension

机译：压缩拉应力下可展开复合薄壁双凸透镜管展平过程的研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Carbon fiber reinforced polymers (CFRP) laminates are extensively employed to manufacture the deployable composite thin-walled lenticular tubes (CTLTs). This paper presents a comparison of experimental and numerical and analytical results of compressive and tensile flattening types of deployable CTLTs. Firstly, a compressive flattening model created by ABAQUS was introduced to obtain its strain and stress of each ply of composite tube. Secondly, compressive flattening experiments were performed for CTLT specimens to explore compressive flattening mechanism of CTLTs. Then, the numerical simulation methods to simulate the compressive flattening of CTLTs were verified by comparing measurements and corresponding numerical results. Thirdly, analytical models are employed to predict the flattening process of CTLTs under compression. Lastly, for the tensile flattening process of CTLTs, the numerical simulation method and corresponding experiments and theoretical results are respectively also carried out with aim of revealing mechanical properties of CTLTs under tension. The flattening process of CTLTs can be considered to be a nonlinear deformation and small strain process. For the compressive flattening, the maximum compressive force, displacement and strain are 98N, 60mm and 0.29%, respectively. For the identical tensile flattening, the maximum tensile force, displacement and strain are 550N, 42.5mm, 0.53%. respectively. It is found that the compressive flattening way is a better choice in the design of the actuated mechanism. (C) 2017 Elsevier Ltd. All rights reserved.
机译：碳纤维增强聚合物（CFRP）层压板广泛用于制造可展开的复合薄壁双凸透镜管（CTLT）。本文介绍了可压缩CTLT的压缩和拉伸展平类型的实验，数值和分析结果的比较。首先，引入由ABAQUS创建的压缩扁平化模型，以获得其在复合管各层中的应变和应力。其次，对CTLT试样进行了压扁实验，以探索CTLT的压扁机理。然后，通过比较测量结果和相应的数值结果，验证了模拟CTLT压缩扁平化的数值模拟方法。第三，采用分析模型预测压缩状态下CTLT的展平过程。最后，针对CTLT的拉伸扁平化过程，还分别进行了数值模拟方法，相应的实验和理论结果，以揭示CTLT在拉伸状态下的力学性能。 CTLT的扁平化过程可以认为是非线性变形和小应变过程。对于压缩扁平化，最大压缩力，位移和应变分别为98N，60mm和0.29％。对于相同的拉伸扁平化，最大拉伸力，位移和应变为550N，42.5mm，0.53％。分别。发现压缩扁平化方式是致动机构设计中的更好选择。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号