Experimental analysis of energy absorption capability of thin-walled composite cylindrical shells by quasi-static axial crushing test
Experimental analysis of energy absorption capability of thin-walled composite cylindrical shells by quasi-static axial crushing test
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DOI：
10.1016/j.tws.2018.01.026
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发表时间：
2018-04-01
影响因子：
6.4
通讯作者：
Shariati, Mahmoud
中科院分区：
文献类型：
--
作者：
Hosseini, Seyed Morteza;Shariati, Mahmoud
对复合材料薄壁圆柱壳的吸能性能进行了实验研究。研究了六个参数对复合材料壳体吸收能量的影响。这些参数包括内径、长度和壳厚三个几何参数，另外三个参数是层取向、增强纤维和制造工艺。采用田口方法完成了试验设计，并对壳体进行了轴向压缩试验。对得到的数据进行了统计分析，得出了六个参数的排序，并提出了基于所选参数的优化结构。最后，对控制吸收能力的各种复杂失效模式进行了研究。此外，还研究了上述六个参数对壳体稳定和不稳定破碎模式的影响。结果表明，统计分析结果与实验分析结果中的破碎崩塌机理有很好的对应关系，两者都符合比能量吸收。
The energy absorption capability of thin-walled composite cylindrical shells is experimentally investigated. Effects of six parameters on absorption energy of composite shells are studied. These parameters including three geometric parameters of inner diameter, length and shell thickness and the other three parameters are layer orientation, reinforcing fibers and manufacturing process. The design of experiment was accomplished by applying Taguchi method and the axial crushing test was conducted on shells. The resulting data was statistically analyzed which led to the ranking of the six parameters and an optimized structure based on the selected parameters was proposed. Finally, different kinds of complicated failure modes controlling absorption capacity were studied. In addition, effects of the six mentioned parameters on both stable and unstable crushing modes of shells were investigated. It is found that a good correspondence exists between statistical analysis results and crushing collapse mechanisms in experimental analysis results, which both of the analysis are accorded to specific energy absorption.