Dynamic fracture of ceramics
Dynamic fracture of ceramics
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DOI：
10.1051/jp4:2006134105
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发表时间：
2006-08
期刊：
影响因子：
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通讯作者：
J. Buchar;S. Rolc
中科院分区：
文献类型：
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作者：
J. Buchar;S. Rolc
本文的目的在于比较两种实验方法，这些方法用于研究动态载荷下的陶瓷断裂。已经针对Al 2 O 3的标本进行了实验研究。使用泰勒测试进行了加载。确定样品骨折的裂缝时的冲击速度已确定。使用给定检验的数值模拟，已经评估了给定材料的动态强度。在下一步中，已经使用霍普金森棒进行了动态的巴西测试，应应变率为76 s -1。数字模拟显示了两种方法的结果之间的一致性。
The aim of the paper consists in the comparison of two experimental methods which are used for the study of the ceramics fracture under dynamic loading. The experimental study has been performed for the specimen of the Al 2 O 3 . The loading has been performed using of the Taylor test. The impact velocity when the fracture of the specimen starts has been determined. Using of the numerical simulation of the given test, the dynamic strength of the given material has been evaluated. In the next step, the dynamic Brazilian tests has been performed with a Hopkinson bar, at strain rates 76 s -1 . The numeric simulation showed the agreement between results of both methods.