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首页> 外文期刊>International journal of design engineering >A modelling strategy and strain concentration analysis for a countersunk hole in an orthotropic plate
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A modelling strategy and strain concentration analysis for a countersunk hole in an orthotropic plate

机译：正交各向异性板沉孔的建模策略和应变集中分析

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摘要

Strain and stress analyses are performed for countersunk holes in orthotropic laminates under uniaxial tension. ANSYS software is implemented to establish finite element (FE) modelling strategies and to run the analysis. It is found that the homogenisation of the material properties can be adopted in the analyses of orthotropic plates, and is reasonably accepted in the strain-based analysis of quasi-isotropic plates. However, ply-by-ply modelling is needed for stress-based analysis of quasi-isotropic laminates. It is also found that in the homogenised models the strain concentration factor is always less than the stress concentration factor with differences less than 4% for 98% of the results.
机译：在单轴拉伸下对正交各向异性层压板的埋头孔进行了应变和应力分析。实施ANSYS软件以建立有限元（FE）建模策略并运行分析。发现在正交各向异性板的分析中可以采用材料性质的均质化，并且在准各向同性板的基于应变的分析中被合理接受。但是，对于基于各向同性层压板的应力分析，需要逐层建模。还发现，在均质化模型中，应变集中系数始终小于应力集中系数，且98％的结果差异小于4％。

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