Analysis and testing of indentation fracture behavior of piezoelectric ceramics under an electric field
Analysis and testing of indentation fracture behavior of piezoelectric ceramics under an electric field
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电场作用下压电陶瓷压痕断裂行为分析与测试
DOI：
10.1115/1.1370370
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发表时间：
2001
影响因子：
1.2
通讯作者：
K. Horiguchi
中科院分区：
文献类型：
--
作者：
Y. Shindo;M. Oka;K. Horiguchi
为了评估压电材料的电断裂韧性，对压电材料在机械载荷和电载荷联合作用下进行了压痕断裂（IF）试验。使用来自商业来源的锆钛酸铅（PZT）陶瓷。采用三维有限元法计算了能量释放率和应力强度因子。将维氏压痕产生的表面裂纹模拟为两点力加载的半便士形裂纹。
To estimate the electric fracture toughness, indentation fracture (IF) tests were made on piezoelectric materials under combined mechanical and electrical loads. Lead zirconate titanate (PZT) ceramics from a commercial source were used. A three-dimensional finite element analysis was also employed to calculate the energy release rate and stress intensity factor. Surface cracks produced by indentation with Vickers indented were modeled as two point-force loaded half-penny-shaped cracks.