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Mixed-Mode Decohesion Elements for Analyses of Progressive Delamination

机译：用于渐进分层分析的混合模式分离元素

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摘要

A new 8-node decohesion element with mixed mode capability is proposed and demonstrated. The element is used at the interface between solid finite elements to model the initiation and propagation of delamination. A single displacement-based damage parameter is used in a strain softening law to track the damage state of the interface. The method can be used in conjunction with conventional material degradation procedures to account for inplane and intra-laminar damage modes. The accuracy of the predictions is evaluated in single mode delamination tests, in the mixed-mode bending test, and in a structural configuration consisting of the debonding of a stiffener flange from its skin.

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作者
Davila, C. G. ; Camanho, P. P. ; deMoura, M. F.;
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年度 2001
页码 1-1
总页数 1
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Delaminating; Finite element method; Debonding(Materials); Failure; Defects; Degradation; Fracturing; Plastic deformation; Damage assessment; Simulation; Thickness; Compressibility; Cracks; Loads(Forces);

机译：分层;有限元法;脱粘（材料）;失效;缺陷;退化;压裂;塑性变形;损伤评估;模拟;厚度;可压缩性;裂缝;载荷（力）;

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专利

1. Predicting progressive delamination of stiffened fibre-composite panel and repaired sandwich panel by decohesion models [J] . Jiye Chen Journal of Thermoplastic Composite Materials . 2002,第5期

机译：预测加强纤维复合板的渐进式分层并通过脱粘模型修复夹心板
2. Decohesion finite element with enriched basis functions for delamination [J] . I. Guiamatsia, J.K. Ankersen, G.A.O. Davies, Composites Science and Technology . 2009,第15a16期

机译：具有丰富基础函数的分层脱粘有限元
3. Mixed-mode delamination in 2D layered beam finite elements [J] . Skec Leo, Jelenic Gordan, Lustig Nikola International Journal for Numerical Methods in Engineering . 2015,第8期

机译：二维分层梁有限元中的混合模式分层
4. Application of Decohesion Model in Predicting Progressive Delamination of Composite Stiffened Panel and Repaired Sandwich Panel [C] . Jiye Chen, A. J. Kinloch, F. L. Matthews International conference on composite materials . 2001

机译：解粘模型在复合加强板的逐步分层预测和修复夹层面板中的应用
5. Comprehensively simulating the mixed-mode progressive delamination in composite laminates [D] . Gao, Zhenyuan 2015

机译：全面模拟复合材料层板中的混合模式渐进分层
6. Finite Element Modeling for Debonding of FRP-to-Concrete Interfaces Subjected to Mixed-Mode Loading [O] . Hui Yu, Yu-Lei Bai, Jian-Guo Dai, 2016

机译：混合模式载荷下玻璃钢与混凝土界面剥离的有限元建模
7. Mixed-Mode Decohesion Elements for Analyses of Progressive Delamination [O] . Carlos G. Davila, Pedro P. Camanho, Marcelo F. de Moura 2001

机译：用于渐进分层分析的混合模式分离元素

Mixed-Mode Decohesion Elements for Analyses of Progressive Delamination

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