...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied composite materials >Post Buckling Progressive Failure Analysis of Composite Laminated Stiffened Panels
【24h】

Post Buckling Progressive Failure Analysis of Composite Laminated Stiffened Panels

机译：复合材料加筋板的屈曲后渐进破坏分析

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present work deals with the numerical prediction of the post buckling progressive and final failure response of stiffened composite panels based on structural nonlinear finite element methods. For this purpose, a progressive failure model (PFM) is developed and applied to predict the behaviour of an experimentally tested blade-stiffened panel found in the literature. Failure initiation and propagation is calculated, owing to the accumulation of the intralaminar failure modes induced in fibre reinforced composite materials. Hashin failure criteria have been employed in order to address the fiber and matrix failure modes in compression and tension. On the other hand, the Tsai-Wu failure criterion has been utilized for addressing shear failure. Failure detection is followed with the introduction of corresponding material degradation rules depending on the individual failure mechanisms. Failure initiation and failure propagation as well as the post buckling ultimate attained load have been numerically evaluated. Final failure behaviour of the simulated stiffened panel is due to sudden global failure, as concluded from comparisons between numerical and experimental results being in good agreement.
机译：本工作基于结构非线性有限元方法，对加筋复合板屈曲后的渐进和最终破坏响应进行数值预测。为此，开发了一种渐进式失效模型（PFM），并将其用于预测文献中发现的经过实验测试的叶片加劲板的行为。由于纤维增强复合材料中层内破坏模式的累积，计算了破坏的开始和传播。已采用Hashin破坏准则，以解决压缩和拉伸过程中纤维和基质的破坏模式。另一方面，Tsai-Wu破坏准则已用于解决剪切破坏问题。故障检测之后，根据各个故障机制引入相应的材料降级规则。失效引发和失效传播以及屈曲后最终达到的极限载荷已通过数值评估。从数值和实验结果之间的比较可以得出结论，模拟的加劲板的最终破坏行为是由于突然的整体破坏。

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