• 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 >Numerical treatment of fiber reinforced plastic crushing mechanism in virtual performance solution: Possibilities and limitations
【24h】

Numerical treatment of fiber reinforced plastic crushing mechanism in virtual performance solution: Possibilities and limitations

机译：虚拟性能解中纤维增强塑料破碎机理的数值处理：可能性和局限性

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

This paper describes both experimental and numerical investigations on the crushing behavior of fiber-reinforced plastic composites (triaxial-braid) for almost rectangular crush specimens. Fiber-reinforced plastic in general is an enormously versatile material group which allows engineers to adapt it to varying tasks, but causes large challenges regarding a trustable numerical forecast in structural simulations. The virtual performance solution (Virtual PAM-CRASH) solver can manage the crushing behavior of fiber-reinforced plastic by a phenomenological implementation, the innovation PLY100. It's possibilities as well as limitations are described briefly in the present paper. These limitations are the incentive for a new approach based on shell elements, which are arranged in a stacked shell order. The delamination process is modelled by using cohesive interface contacts. General ply cards, which are derived from standard material characterization tests, are improved via the inverse method, called MCMC method with an integrated Metropolis algorithm. Besides the numerical simulations, a large experimental drop-weight-tower study was conducted, of which a small extract is presented here. In conclusion, the new numerical approach is able to predict the crushing mechanism and also the mechanical properties during crushing accurately. Small deviations between numerical and experimental results are presented and will be addressed in a future publication.
机译：本文描述了纤维增强的塑料复合材料（三轴编织）对几乎矩形的挤压试样的挤压行为的实验和数值研究。通常，纤维增强塑料是用途非常广泛的材料组，它使工程师能够适应各种任务，但是在结构模拟中可靠的数值预测方面会遇到很大的挑战。虚拟性能解决方案（Virtual PAM-CRASH）求解器可以通过现象学实现创新PLY100来管理纤维增强塑料的破碎行为。本文简要介绍了它的可能性和局限性。这些限制是基于壳元素的新方法的诱因，这些壳元素以堆积的壳顺序排列。脱层过程是通过使用粘性界面触点建模的。源自标准材料特性测试的通用层板卡通过称为MCMC的逆方法与集成的Metropolis算法进行了改进。除数值模拟外，还进行了大型的实验性降重塔研究，此处介绍了其中的一小部分提取物。总之，新的数值方法能够准确地预测破碎机理以及破碎过程中的机械性能。数值和实验结果之间的微小偏差将在以后的出版物中进行介绍。

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