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Numerical analysis of disbonding in sandwich structures using ID finite elements

机译:使用ID有限元分析夹层结构的分离

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摘要

Structural theories based on 1D component-wise models are proposed to investigate the progressive disbonding in sandwich structures. The structural framework adopts the Carrera Unified Formulation to generate higher-order theories of structures via a variable kinematic approach. The component-wise approach, formulated within the Lagrange polynomial based CUF models, permits modelling of various components of a complex structure through 1D CUF models at reduced computational costs and 3D accuracy. The disbonding constitutive models are retrieved from well-established works in the literature and based on cohesive elements. The results verify the accuracy of 1D models with some 10-20% computational time as compared to 3D finite elements.
机译:提出了基于1D组分模型的结构理论,以研究夹层结构中的逐渐消退。结构框架采用Carrera统一配方,通过可变运动方法产生高阶的结构理论。在基于拉格朗日多项式的CUF模型内配制的组件 - 方面方法允许通过1D CUF模型在降低的计算成本和3D精度建模复杂结构的各种组件。从文献中的完善的作品中取出了脱钩本构模型,并基于内聚元件。结果验证了1D型号的准确性,与3D有限元素相比,计算时间为10-20%。

著录项

  • 来源
    《Composite Structures》 |2020年第11期|112717.1-112717.8|共8页
  • 作者单位

    Nanjing Univ Aeronaut & Astronaut State Key Lab Mech & Control Mech Struct Nanjing 210016 Peoples R China;

    Politecn Torino Dept Mech & Aerosp Engn MUL2 Grp Corso Duca Abruzzi 24 I-10129 Turin Italy;

    Politecn Torino Dept Mech & Aerosp Engn MUL2 Grp Corso Duca Abruzzi 24 I-10129 Turin Italy;

    Nanjing Univ Aeronaut & Astronaut State Key Lab Mech & Control Mech Struct Nanjing 210016 Peoples R China;

    Politecn Torino Dept Mech & Aerosp Engn MUL2 Grp Corso Duca Abruzzi 24 I-10129 Turin Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Disbonding; Sandwich structures; CUF; FEM; Cohesive elements;

    机译:脱配;夹层结构;CUF;FEM;凝聚元素;

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