Experimental investigation of the collapse modes and energy absorption characteristics of composite tubes
Experimental investigation of the collapse modes and energy absorption characteristics of composite tubes
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DOI：
10.1080/13588260902792954
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发表时间：
2009-01-01
影响因子：
1.9
通讯作者：
Bisagni, Chiara
中科院分区：
文献类型：
--
作者：
Bisagni, Chiara
本文介绍了由不同的复合材料制成的管的实验研究的结果。它们是航空航天和汽车工业中使用的结构部件，能够吸收大量的冲击能量，同时以可控的方式逐渐倒塌。由于复杂的断裂机制，得到了几种不同的崩溃模式。从测试中观察到，由碳纤维制成的管的比吸收能量可以达到75 kJ/kg，相比之下，由铝合金制成的管的比吸收能量为约40 kJ/kg。此外，玻璃纤维制成的管可用作碰撞相关结构领域的轻质材料，因为它们的能量吸收比铝合金制成的管高12%。碳纤维和玻璃纤维的混合复合结构的解决方案是非常有前途的。
This paper describes the results of an experimental investigation of tubes made of different composite materials. They are structural components used in the aerospace and automotive industries, which are able to absorb large amounts of impact energy while collapsing progressively in a controlled manner. Because of the complex fracture mechanisms, several different collapse modes are obtained. From the tests, it is observed that the specific absorbed energy for tubes made of carbon fibres can reach 75 kJ/kg, compared to about 40 kJ/kg for tubes made of aluminium alloy. Also, the tubes made of glass fibres can be used as lightweight materials in crash-relevant structural areas as they present an energy absorption 12% higher than tubes made of aluminium alloy. The solution of hybrid composite structures in carbon and glass fibres is highly promising.