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首页> 外文期刊>Composite Structures >A MITC-based procedure for the numerical integration of a continuum elastic-plastic theory of through-the-thickness-jacketed shell structures
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A MITC-based procedure for the numerical integration of a continuum elastic-plastic theory of through-the-thickness-jacketed shell structures

机译：基于MITC的过程，用于通过壁厚壳结构的连续弹塑性理论的数值积分

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摘要

Through-the-Thickness Jacketing (TTJ) is a technique for repairing and retrofitting shell structures by inducing in the shell core a beneficial confining stress state created by a net of broadly distributed retrofitting links crossing the shell thickness and tying externally applied layers. The paper presents the derivation, the algorithmic implementation and the numerical assessment of a predictor-corrector computational strategy for the integration of a shell FE-model obtained by combining a discrete MITC quadrilateral element with a layered continuum-based generalized shell theory of TTJ-reinforced structures, essentially based upon a Winkler-like idealization of TTJ. This theory of Through-the-Thickness-Jacketed Shells (TTJS) captures the onset of complex triaxial stress states originated by the interaction between core and TTJ reinforcements.
机译：厚壁贯通（TTJ）是一种通过在壳芯中引入有益的约束应力状态来修复和改造壳结构的技术，该约束应力状态是由横跨壳厚度并捆绑外部应用层的广泛分布的改造链网形成的。本文介绍了将离散的MITC四边形元素与基于TTJ的分层连续体基于广义壳理论相结合而获得的壳有限元模型集成的预测器-校正器计算策略的推导，算法实现和数值评估。结构，基本上是基于TTJ的Winkler式理想化。壁厚贯通壳（TTJS）的这种理论捕获了由芯部和TTJ增强件之间的相互作用引起的复杂三轴应力状态的开始。

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