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Ultimate strength analysis of composite typical joints for ship structures

机译：船舶结构复合典型接头的极限强度分析

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摘要

In order to solve the damage failure problem of composite L-joints for ship structures, the failures and ultimate strength of the composite L-joints for ship structures are researched by using the progressive damage analysis method and experimental method. A number of studies have been carried out on the structural failure process and failure strength of the joints under compressive loading. The experimental and numerical results show the axial displacement of sandwich plates under axial compressive loading increases slowly before reaching the limit, but the bearing capacity of the structure decreases rapidly once the load exceeds the ultimate load, with the slow increment of axial displacement until the sandwich plate cracks. The major failure modes of sandwich L-joints are the delamination between core and skin, fiber failure, base shear failure and PVC failure. There is a good agreement between the numerical results and the test results, which offers a guide in designing the structure of sandwich composite joint. (C) 2017 Elsevier Ltd. All rights reserved.
机译：为了解决船舶结构复合L型接头的破坏失效问题，采用渐进式损伤分析法和实验方法研究了船舶结构复合L型接头的破坏和极限强度。已经对压缩载荷作用下接头的结构破坏过程和破坏强度进行了许多研究。实验和数值结果表明，在轴向压缩载荷作用下，夹层板的轴向位移在达到极限之前缓慢增加，但一旦超过极限载荷，结构的承载力迅速减小，直到夹层板为止，轴向位移缓慢增加板裂纹。夹心L型接头的主要破坏方式是芯与表皮之间的分层，纤维破坏，基础剪切破坏和PVC破坏。数值结果与试验结果吻合良好，为夹心复合材料接头的设计提供了指导。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composite Structures》 |2017年第7期|32-42|共11页
  • 作者

    Shen Wei; Yan Renjun; Luo Bailu; Zhu Yingfu; Zeng Haiyan;

  • 作者单位

    Wuhan Univ Technol, Minist Educ, Key Lab High Performance Ship Technol, Wuhan 430063, Peoples R China|Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China;

    Wuhan Univ Technol, Minist Educ, Key Lab High Performance Ship Technol, Wuhan 430063, Peoples R China;

    China Ship Dev & Design Ctr, Wuhan 430064, Peoples R China;

    China Ship Dev & Design Ctr, Wuhan 430064, Peoples R China;

    Wuhan Univ Technol, Minist Educ, Key Lab High Performance Ship Technol, Wuhan 430063, Peoples R China;

  • 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

    Composite material; Sandwich L-joint; Ultimate strength; Experimental research;

    机译：复合材料;三明治L型接头;极限强度;实验研究;

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