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Non-linear stiffness response of corrugated laminates in tensile loading

机译：波纹层压板在拉伸载荷下的非线性刚度响应

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摘要

Corrugated laminates have highly anisotropic stiffness properties. Therefore, they are interesting candidates for flexible skins. The geometrically non-linear stiffness response of corrugated sheets is crucial for applications with large deformations. The present paper analyzes the governing mechanisms that drive the non-linear tensile behavior and suggests a model to analyze corrugated structures. The mechanical response mainly depends on the geometry such as amplitude and thickness of the corrugation and the material properties. The proposed model calculates the mechanical response based on a simplified model consisting of rods and discrete torsional springs. It is verified by comparison with non-linear structural analysis with FEM and experimentally validated by using samples manufactured by 3D printing. The paper also presents a parametric study investigating the influence of the geometry on the non-linear behavior and we identify the limits of linear approximation of the structural response of corrugated laminates. (C) 2016 Elsevier Ltd. All rights reserved.
机译：波纹层压板具有高度的各向异性刚度性能。因此，它们是柔性皮肤的有趣候选者。波纹板的几何非线性刚度响应对于变形较大的应用至关重要。本文分析了驱动非线性拉伸行为的控制机制，并提出了一种分析波纹结构的模型。机械响应主要取决于几何形状，例如波纹的幅度和厚度以及材料特性。所提出的模型基于由杆和离散扭转弹簧组成的简化模型计算机械响应。通过与FEM的非线性结构分析进行比较来验证它，并通过使用3D打印制造的样品进行实验验证。本文还提供了一项参数研究，研究了几何形状对非线性行为的影响，我们确定了波纹层压板结构响应的线性近似极限。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composite Structures》 |2016年第12期|244-255|共12页
  • 作者

    Thurnherr C.; Ruppen L.; Kress G.; Ermanni P.;

  • 作者单位

    Swiss Fed Inst Technol, Dept Mech & Proc Engn, Lab Composite Mat & Adapt Struct, Tannenstr 3, CH-8092 Zurich, Switzerland;

    Swiss Fed Inst Technol, Dept Mech & Proc Engn, Lab Composite Mat & Adapt Struct, Tannenstr 3, CH-8092 Zurich, Switzerland;

    Swiss Fed Inst Technol, Dept Mech & Proc Engn, Lab Composite Mat & Adapt Struct, Tannenstr 3, CH-8092 Zurich, Switzerland;

    Swiss Fed Inst Technol, Dept Mech & Proc Engn, Lab Composite Mat & Adapt Struct, Tannenstr 3, CH-8092 Zurich, Switzerland;

  • 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

    Modeling of corrugated laminates; Non-linearity; Flexible skins; Anisotropy;

    机译：波纹层压板的建模;非线性;柔性蒙皮;各向异性;

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