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Crashworthiness of poplar wood veneer tubes
International Journal of Impact Engineering ( IF 5.1 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.ijimpeng.2020.103738
R. Guélou , F. Eyma , A. Cantarel , S. Rivallant , B. Castanié

Abstract This work studies the potential of using wooden tubes for crash applications. The tubes were made from 1 mm thick “I214” poplar veneers, according to different stacking sequences. Four configurations were characterized under static crushing (5 mm/min) and the one that performed best ([90/04/90]) was chosen to undergo dynamic tests under a drop weight tower (5.7 m/s). This configuration presents significant energy absorption performance in static (31.6 J / g) and in dynamic (28.5 J / g) crushing for a material that is natural, ecological (low carbon footprint), recyclable, and low cost in comparison with other materials such as composite materials. As with composites, the position, number, and orientation of the plies directly affect the amount of energy absorbed. The use of poplar, one of the weakest woods in mechanical terms, shows the possibilities of wood for this use.

中文翻译:

杨木单板管的耐撞性

摘要 这项工作研究了使用木管进行碰撞应用的潜力。根据不同的堆叠顺序,管子由 1 毫米厚的“I214”杨木单板制成。在静态破碎 (5 mm/min) 下对四种配置进行了表征,选择性能最好的一种 ([90/04/90]) 在落锤塔 (5.7 m/s) 下进行动态测试。这种配置在静态 (31.6 J / g) 和动态 (28.5 J / g) 破碎中表现出显着的能量吸收性能,与其他材料相比,这种材料具有自然、生态(低碳足迹)、可回收和低成本等特点。作为复合材料。与复合材料一样,层的位置、数量和方向直接影响吸收的能量。使用杨树,机械方面最弱的木材之一,
更新日期:2021-01-01
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