piezoelectric material;
piezoelectric constitutive law;
fatigue crack;
stress intensity factor;
electric charge;
integration circuit linear fracture mechanics;
D O I:
10.1016/S0013-7944(02)00091-7
中图分类号:
O3 [力学];
学科分类号:
08 ;
0801 ;
摘要:
A piezoelectric sensor for the measurement of stress intensity factors (SIFs) of two dimensional cracks induced in a structure is developed. Two small pieces of piezoelectric elements are adhered near the crack tip so that the piezoelectric elements are placed close to each other and the crack tip's position is between them. The electric currents from the piezoelectric elements are integrated by integration circuits and the output voltages which are proportional to the electric charge induced in the piezoelectric elements are measured. The SIFs of Mode I (K-I) as well as of Mode II (K-II) based on the piezoelectric constitutive law and fracture mechanics are calculated. (C) 2002 Elsevier Science Ltd. All rights reserved.
机构:
Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527
Liu G.
Fujimoto Y.
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机构:
Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527
Fujimoto Y.
Tanaka Y.
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机构:
Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527
Tanaka Y.
Im E.
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机构:
Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527Department of Social Engineering, Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527
机构:
School of Civil Engineering, Southeast UniversitySchool of Civil Engineering, Southeast University
FANG Zhao
LI AiQun
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h-index: 0
机构:
School of Civil Engineering, Southeast University
Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and ArchitectureSchool of Civil Engineering, Southeast University
LI AiQun
论文数: 引用数:
h-index:
机构:
BAO HaiYing
WANG Hao
论文数: 0引用数: 0
h-index: 0
机构:
School of Civil Engineering, Southeast UniversitySchool of Civil Engineering, Southeast University
机构:
School of Civil Engineering, Southeast UniversitySchool of Civil Engineering, Southeast University
FANG Zhao
LI AiQun
论文数: 0引用数: 0
h-index: 0
机构:
School of Civil Engineering, Southeast University
Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering andSchool of Civil Engineering, Southeast University
LI AiQun
论文数: 引用数:
h-index:
机构:
BAO HaiYing
WANG Hao
论文数: 0引用数: 0
h-index: 0
机构:
School of Civil Engineering, Southeast UniversitySchool of Civil Engineering, Southeast University