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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Effects of new materials on the crashworthiness of S-rails
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Effects of new materials on the crashworthiness of S-rails

机译：新材料对S型钢轨耐撞性的影响

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摘要

Weight reduction and economy in the use of material and resources, are among the most important goals of auto-body designers. In order to reduce car's weight without impairment of crashworthiness, a method of the S-rail's material replacement from mild steel to high-strength steel, like transformation-induced plasticity (TRIP) or dual phase steel (DP) is brought forward. These materials improve crash performance due to their great work hardening during the forming compared with high strength low alloy (HSLA) or complex phase steel. In the current paper, energy absorption and reaction force of S-rails that are made of these new materials considering forming history are studied and an optimum design for improving crash performance of the S-rail using trigger is proposed. The explicit finite-element code LS-DYNA3D is used to simulate the forming process and crash behaviour of S-rails.
机译：减轻重量和节省材料和资源的使用是车身设计者的最重要目标。为了减轻汽车的重量而又不损害耐撞性，提出了一种将低碳钢替代高强度钢的方法，例如相变诱导塑性（TRIP）或双相钢（DP）。与高强度低合金（HSLA）或复杂相钢相比，这些材料在成型过程中具有出色的加工硬化性，因此可提高碰撞性能。在本文中，研究了考虑到成型历史的由这些新材料制成的S型钢轨的能量吸收和反作用力，并提出了一种改进的设计，以改善使用触发器的S型钢轨的碰撞性能。显式有限元代码LS-DYNA3D用于模拟S形导轨的形成过程和碰撞行为。

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