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首页> 外文期刊>Engineering Structures >Equivalent static load method for hierarchical stiffened composite panel subjected to blast loading
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Equivalent static load method for hierarchical stiffened composite panel subjected to blast loading

机译：爆炸载荷作用下分层加劲复合板的等效静载荷法

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摘要

Hierarchical anisogrid stiffened panel (HASP) consists of three parts: main stiffeners, sub-stiffeners, and panel. The basis of HASPs' dynamic response calculation is equivalent to the orthotropic panel. There are mainly two methods to calculate the dynamic response of orthotropic panels. One is the modal superposition method, and this method is an accurate calculation; the other method is equivalent static load method, which is an approximate calculation of deflection. Equivalent static load method is equivalent to the structure as a single degree-of-freedom (SDOF) system. Deflection and strain equivalent method were compared for structural failure analysis. On this basis, the dynamic amplification factor (K-d) was calculated and the effects of parameters on it were discussed. According to these two deflection calculation method, the pressure-impulse (P-I) curve was plotted and the variation of the P-I curve under different conditions was analyzed. These theories were applied to the composite HASP protective door, the deflection and P-I curve of the doors were obtained and verified by tests.
机译：分层的等距格栅加筋板（HASP）由三部分组成：主加劲肋，副加劲肋和面板。 HASP动态响应计算的基础与正交各向异性面板相同。主要有两种方法来计算正交各向异性板的动力响应。一种是模态叠加法，这种方法是一种精确的计算方法。另一种方法是等效静载荷方法，这是挠度的近似计算。等效静载荷方法等效于作为单自由度（SDOF）系统的结构。比较了挠度和应变等效方法进行结构破坏分析。在此基础上，计算了动态放大因子（K-d），并讨论了参数对其的影响。根据这两种挠度计算方法，绘制了压力-脉冲（P-I）曲线，并分析了不同条件下P-I曲线的变化。将这些理论应用于复合HASP防护门，获得了门的挠度和P-I曲线，并通过测试进行了验证。

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  • 来源
    《Engineering Structures》 |2018年第15期|569-582|共14页
  • 作者

    Zhang Bei; Chen Hailong; Li Ming; Zhao Zheng; Zhou Yinzhi; Fan Hualin;

  • 作者单位

    Army Engn Univ PLA, State Key Lab Disaster Prevent & Mitigat Explos &, Nanjing 210007, Jiangsu, Peoples R China;

    Army Engn Univ PLA, State Key Lab Disaster Prevent & Mitigat Explos &, Nanjing 210007, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Res Ctr Lightweight Struct & Intelligent Mfg, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China;

    Army Engn Univ PLA, State Key Lab Disaster Prevent & Mitigat Explos &, Nanjing 210007, Jiangsu, Peoples R China;

    Army Engn Univ PLA, State Key Lab Disaster Prevent & Mitigat Explos &, Nanjing 210007, Jiangsu, Peoples R China;

    Nanjing Univ Aeronaut & Astronaut, Res Ctr Lightweight Struct & Intelligent Mfg, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, 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

    Hierarchical anisogrid stiffened panel; Protective door; Blast response; Equivalent static load method; P-I curve;

    机译：分层等距加筋板;防护门;爆炸响应;等效静载荷法;P-I曲线;

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