金字塔点阵夹芯板单元结构准静态压缩性能研究

钱海峰, 张振华, 牟金磊, 杜国宾

钱海峰, 张振华, 牟金磊, 杜国宾. 金字塔点阵夹芯板单元结构准静态压缩性能研究[J]. 中国舰船研究, 2013, 8(5): 46-51. DOI: 10.3969/j.issn.1673-3185.2013.05.008
引用本文: 钱海峰, 张振华, 牟金磊, 杜国宾. 金字塔点阵夹芯板单元结构准静态压缩性能研究[J]. 中国舰船研究, 2013, 8(5): 46-51. DOI: 10.3969/j.issn.1673-3185.2013.05.008
QIAN Haifeng, ZHANG Zhenhua, MU Jinlei, DU Guobin. Strength of Sandwich Structures with Pyramidal Lattice Cores Under Quasi-Static Compressive Loadings[J]. Chinese Journal of Ship Research, 2013, 8(5): 46-51. DOI: 10.3969/j.issn.1673-3185.2013.05.008
Citation: QIAN Haifeng, ZHANG Zhenhua, MU Jinlei, DU Guobin. Strength of Sandwich Structures with Pyramidal Lattice Cores Under Quasi-Static Compressive Loadings[J]. Chinese Journal of Ship Research, 2013, 8(5): 46-51. DOI: 10.3969/j.issn.1673-3185.2013.05.008

金字塔点阵夹芯板单元结构准静态压缩性能研究

基金项目: 国家重大基础研究项目; 海军工程大学自然科学基金项目(HGDQNEQJJ12011)
详细信息
    作者简介:

    钱海峰(1988-) ,男,硕士生。研究方向:舰船结构抗爆抗冲击。张振华(1976-) ,男,副教授。研究方向:舰船结构毁伤力学。

    通讯作者:

    张振华

  • 中图分类号: U661.43

Strength of Sandwich Structures with Pyramidal Lattice Cores Under Quasi-Static Compressive Loadings

More Information
    Corresponding author:

    ZHANG Zhenhua

知识共享许可协议
金字塔点阵夹芯板单元结构准静态压缩性能研究钱海峰,采用知识共享署名4.0国际许可协议进行许可。
  • 摘要: 点阵夹芯板结构是一种新型的轻质、高强度多功能材料,在船舶领域有着广泛的应用前景。而传统金属材料的夹芯结构面板与芯子之间是通过粘结或焊接连接,易造成弱界面缺陷。基于此,提出一种增强金属材料桁架类夹芯复合壳板结构节点强度的新型加工工艺方法。首先,对点阵夹芯结构在准静态压缩载荷作用下的弹性本构关系进行理论分析;然后,对用该方法制备的节点增强金字塔点阵夹芯复合壳板单元结构进行准静态压缩试验研究。结果发现,随着载荷的增加,金属杆发生塑性屈服并在中间部位出现了断裂。最后,将试验结果与理论预测值进行比较,发现二者吻合较好,证明了理论分析的正确性。
    Abstract: A lattice material is a new-type multifunctional material with lightness and high strength, which has broad application prospects in the ship researching field. Traditional metal lattice materials are usually fabricated through welding or gluing, and the process may leave defects between panels and lattices. Aiming at the problem, this paper proposes a new fabrication technology of hybrid reinforced pyramidal lattice truss cores. Firstly, the elastic constitutive relations of the lattice material under quasi-static compressive loadings are analyzed. Then, the experimental results of the corresponding quasi-static compressive tests are provided. It is seen that when the loadings increase, the metal rod starts to suffer from plastic yielding, and rod fractures eventually appear at the center region. Finally, a comparison between the experimental results and the analytic approximation reveals only trivial differences, which successfully validates the proposed technique.
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出版历程
  • 收稿日期:  2013-01-20
  • 修回日期:  2013-09-12
  • 刊出日期:  2013-09-11

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