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Energy Dissipation Characteristics of Pipes and Short Compression Members as Elements of Pipe-Whip Restraint 作为管鞭约束元件的管道和短受压构件的能量耗散特性
短管和轴向构件用作管鞭约束的耗能装置。这些构件的荷载-变形行为的定量表征对于工程设计分析中的鞭状约束的正确建模是必要的。本文报道了15个由两种不同碳钢制成的管道试样的实验载荷变形行为,其直径与厚度比分别为13.5和20.2。考虑了代表鞭子约束的各种约束条件。 对于长细比分别为7和16.9且由碳钢制成的三种不同短受压构件,也给出了类似的结果。讨论了精细元素分析建模参数的获取方法。
Short pipes and axial members are used as energy dissipating devices in Pipe-Whip Restraints. Quantitative characterization of the load-deformation behavior of these members is necessary for a proper modeling of the whip restraints for an engineering design analysis. Experimental load deformation behaviors are reported for 15 pipe specimens, made of two different carbon steel and representing diameter to thickness ratios of 13.5 and 20.2. Various constraint conditions representative of a whip restraint were considered. Similar results for three different short compression members with slenderness ratios of 7 and 16.9 and made of carbon steel are also presented. Method of obtaining modeling parameter for fine element analysis is discussed.
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