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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science >Numerical investigation on the cyclic behavior of smart recentering clip-angle connections with superelastic shape memory alloy fasteners
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Numerical investigation on the cyclic behavior of smart recentering clip-angle connections with superelastic shape memory alloy fasteners

机译：超弹性形状记忆合金扣件智能对夹夹角连接的循环行为数值研究

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摘要

Superelastic shape memory alloy materials have become increasingly prevalent for recentering devices that have the ability to recover their plastic deformation automatically. For this reason, this study proposed new clip-angle connections incorporating superelastic shape memory alloy bolts. Including component spring models, mechanical joint models of steel bolted connections and shape memory alloy bolted connections are created for numerically simulating their cyclic behavior. The numerical analysis results are then compared to each other in terms of ultimate strength, energy dissipation, and permanent deformation. In particular, over 60% of the total displacement was recovered during unloads in case of shape memory alloy bolted connections, indicating that the proposed smart connections display obvious recentering features in their behaviors.
机译：超弹性形状记忆合金材料已经越来越流行于具有自动恢复其塑性变形能力的新型设备中。因此，本研究提出了一种新的夹角连接件，该连接件结合了超弹性形状记忆合金螺栓。包括零件弹簧模型，钢制螺栓连接和形状记忆合金螺栓连接的机械接头模型，用于数值模拟它们的循环行为。然后，将数值分析结果在极限强度，能量耗散和永久变形方面进行比较。特别是在形状记忆合金螺栓连接的情况下，在卸载过程中恢复了总位移的60％以上，这表明所提出的智能连接在其行为上表现出明显的更新特征。

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