• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the institution of mechanical engineers >A strain rate dependent cohesive zone element for mode Ⅰ modeling of the fracture behavior of adhesives
【24h】

A strain rate dependent cohesive zone element for mode Ⅰ modeling of the fracture behavior of adhesives

机译：应变率相关的粘结带单元，用于Ⅰ型胶粘剂断裂行为的建模

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

Adhesives are widely used in the automotive industry as they can be used to manufacture lightweight multimaterial structures with improved strength-to-weight ratio, contributing to lower energy consumption and emissions. In this industry, it is also crucial to ensure passengers' safety and, thus, mechanical behavior of the complete automotive structure should be tested for impact conditions, including the adhesive joints within it. This work presents the development of a finite element, which models the mechanical behavior of adhesives and takes into account the strain rate dependent property variation, in mode I. The trends for the property variation were set based on an experimental study of two adhesives under three different loading conditions: quasi-static, intermediate speed, and impact. The strength was determined using bulk tensile tests and toughness using double cantilever beam, respectively. Both adhesives studied have shown an increase in ultimate stress and critical energy release rate with increasing strain rate. The property variation was then implemented on a finite element, which revealed a good agreement with the experimental results.
机译：粘合剂在汽车工业中被广泛使用，因为它们可用于制造强度/重量比得到改善的轻质多材料结构，从而有助于降低能耗和排放。在这个行业中，确保乘客的安全也至关重要，因此，应对整个汽车结构的机械性能进行冲击条件测试，包括其内部的胶粘点。这项工作提出了一种有限元的发展，该有限元在模式I下模拟了粘合剂的机械行为并考虑了应变率相关的特性变化。基于两种粘合剂在三种条件下的实验研究，确定了特性变化的趋势。不同的加载条件：准静态，中等速度和冲击。分别使用整体拉伸试验确定强度，并使用双悬臂梁确定韧性。所研究的两种胶粘剂均显示出极限应力和临界能量释放速率随应变速率的增加而增加。然后在有限元上实现了属性变化，这表明与实验结果有很好的一致性。

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