Electro-magnetic confinement for dynamic multiaxial compression experiments

被引：0
|
作者：
W. Chen
机构：
[1] University of Arizona,Department of Aerospace and Mechanical Engineering
来源：
Experimental Techniques | 1999年 / 23卷
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摘要：
A new experimental technique for imposing controlled dynamic confinement on specimens subjected to high-strain-rate uniaxial compression has been developed. The axial compression is provided by a split Hopkinson pressure bar, and the lateral confinement is applied by an electromagnetic pressure. The results show that, under dynamic confinement of ∼10 MPa, the compressive strength of a brittle glass ceramic increases by ∼20% as compared to its un-confined failure strength. It is also observed that the propensity of the ceramic to fragmentation or conminution is suppressed by dynamic confinement.
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页码：24 / 26
页数：2
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