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Finite element crash simulations of an automobile by using Ls-Dyna

机译:使用LS-DYNA汽车的有限元碰撞模拟

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The objective of the current work is to estimate the maximum resultant displacement and energy absorption capacity of fascia and body in white structure during crash. Any change in automobile design leads to decrement of passenger's compartment area. Therefore, another option available is to change the materials in automobile which can minimize the damages in accidents. The details of the Fascia and body in white structure are taken from Honda Accord Model. The crash tests are performed on fascia considering the Dual Phase 600 Steel, TI6AL4V alloy and Acrylonitrile Butadiene Styrene (ABS) Plastic materials. The fascia crash test is performed as per United States New Car Assessment Program and Roof crush test is performed as per federal motor vehicle standards 216. Deformation and energy absorption capacity during crash have been analyzed by using finite element solver LS-DYNA. The results shows that, the energy absorption capacity of Dual Phase 600 Steel is greater than that of TI6AL4V alloy and Acrylonitrile Butadiene Styrene (ABS) Plastic during the fascia crash test. In case of roof crush test, maximum resultant displacement of Dual Phase 600 steel is less compared to TI6AL4V Alloy. This analysis helps in selection of material which can minimizes the damage during vehicle accidents.
机译:目前工作的目的是估算碰撞期间白色结构中筋膜和身体的最大合成的位移和能量吸收能力。汽车设计的任何变化都会导致乘客隔间区域减少。因此,另一种可用的选项是改变汽车中的材料,这可以最大限度地减少事故的损坏。白色结构中筋膜和身体的细节取自本田雅阁模型。考虑到双相600钢,Ti6Al4V合金和丙烯腈丁二烯苯乙烯(ABS)塑料材料,对筋膜进行碰撞试验。根据美国的新车评估计划和屋顶粉碎试验,根据联邦机动车标准进行,根据联邦机动车标准进行,通过使用有限元求解器LS-DYNA分析碰撞过程中的变形和能量吸收能力。结果表明,在筋膜碰撞试验期间,双相600钢的能量吸收能力大于Ti6Al4V合金和丙烯腈丁二烯苯乙烯(ABS)塑料的能量吸收能力。在屋顶压碎试验的情况下,与Ti6Al4V合金相比,双相600钢的最大合成的位移较少。该分析有助于选择材料,这可以最大限度地减少车辆事故过程中的损坏。

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