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Energy absorption of braiding pultrusion process composite rods

机译:编织拉挤工艺复合棒的能量吸收

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Composite body structures are now commonly used in road and rail vehicles, ships and submarines, aircraft and spacecraft due to their capability to effectively absorb high kinetic energy to weight ratio. One such structure designed as an energy device with pre- determined properties is a braided pultruded process (BPP) composite rod of either circular or square cross-section. This paper reports the results of an investigation on circular BPP rods and unidirectional pultruded process rods in epoxy matrix Subjected to compressive loading. Test results depict BPP rods to have superior properties in comparison to the unidirectional rods In terms of energy absorption capability that is manifested through well-defined progressive crushing failure mechanisms.
机译:复合体结构由于其有效吸收高动能重量比的能力而如今广泛用于公路和铁路车辆,船舶和潜艇,飞机和航天器。被设计为具有预定特性的能量装置的一种这样的结构是圆形或正方形横截面的编织拉挤工艺(BPP)复合杆。本文报道了在压缩载荷下对环氧树脂基体中的圆形BPP棒和单向拉挤工艺棒的研究结果。测试结果表明,BPP棒与单向棒相比具有更好的性能。在能量吸收能力方面,通过明确定义的渐进式破碎破坏机制可以证明。

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