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arXiv 1608.07239math.NAcs.NA
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利用真实3D接合模型计算板件装配:一种非侵入式方法

On the computation of plate assemblies using realistic 3D joint model: a non-intrusive approach

LMT-Cachan, ENS-Cachan/CNRS/Université Paris-Saclay(拉格朗日力学与材料实验室,巴黎高等师范学院/法国国家科学研究中心/巴黎萨克雷大学);Airbus Group Innovation(空客集团创新中心)

Guillaume Guguin, Olivier Allix, Pierre Gosselet, Stéphane Guinard

AI总结:

本文提出非侵入式技术,通过替换简化接合器为精确非线性3D模型,提高板件装配计算的可靠性,通过实例分析验证了接合器建模和子建模技术的有效性与局限性。

摘要:

大多数大型工程结构被描述为板和壳的装配,并通过定制的有限元软件进行计算。实际上,在三维中进行计算会非常昂贵。在此框架下,部件之间的连接通常通过简化的连接模型来建模。为了提高此类模拟的可靠性,我们提出应用一种非侵入式技术,以虚拟替换简化的连接器为精确的三维非线性模型,而无需修改全局板模型。此外,每个计算都可以在独立优化的软件上进行。在描述该方法后,通过实例分析其性能,并绘制出关于接合器建模和子建模技术估计螺栓板承载能力的有效性和局限性的结论。

英文摘要:

Most large engineering structures are described as assemblies of plates and shells and they are computed as such using adhoc Finite Element packages. In fact their computation in 3D would be much too costly. In this framework, the connections between the parts are often modeled by means of simplified tying models. In order to improve the reliability of such simulations, we propose to apply a non-intrusive technique so as to virtually substitute the simplified connectors by a precise 3D nonlinear model, without modifying the global plate model. Moreover each computation can be conducted on independent optimized software. After a description of the method, examples are used to analyze its performance, and to draw some conclusions on the validity and limitation of both the modeling of junction by rigid connectors and the use of submodeling techniques for the estimation of the carrying capacity of bolted plates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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