High Strain Rate Compressive Characterization of Aluminum Alloy/Fly Ash Cenosphere Composites
High Strain Rate Compressive Characterization of Aluminum Alloy/Fly Ash Cenosphere Composites
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DOI：
10.1007/s11837-011-0029-y
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发表时间：
2011-02-01
期刊：
影响因子：
2.6
通讯作者：
Rohatgi, Pradeep K.
中科院分区：
文献类型：
--
作者：
Luong, Dung D.;Gupta, Nikhil;Rohatgi, Pradeep K.
确定了铝合金/空心粉煤灰微珠复合材料的压缩响应的应变率依赖性。采用A4032合金作为基体材料。对基体合金和复合材料进行了准静态和高应变率压缩试验。分体式霍普金森压力棒用于高应变率测试。虽然基体合金没有表现出任何明显的应变率敏感性，但复合材料在更高的应变率下表现出更高的强度。研究发现，A4032/粉煤灰微珠复合材料的能量吸收能力在较高应变率下较高。
The strain rate dependence of compressive response is determined for aluminum alloy/hollow fly ash cenosphere composites. A4032 alloy is used as the matrix material. Quasi-static and high strain rate compression tests are conducted on the matrix alloy and the composite. A split-Hopkinson pressure bar is used for high strain rate testing. While the matrix alloy does not show any appreciable strain rate sensitivity, the composite shows higher strength at higher strain rates. The energy absorption capability of A4032/fly ash cenosphere composites is found to be higher at higher strain rates.