| 压电传感器探测层合板分层的数值分析 |
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| 引用本文： | 尹林,王晓明,沈亚鹏. 压电传感器探测层合板分层的数值分析[J]. 力学学报, 1995, 27(Z1): 58-65 |
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| 作者姓名： | 尹林 王晓明 沈亚鹏 |
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| 作者单位： | 西安交通大学工程力学系 |
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| 摘 要： | 用修正的准三维有限元法分析了受单轴拉伸表面覆盖有压电薄膜的复合材料层合板。文中首先讨论了压电薄膜层对层合板层间应力的影响，然后在存在分层裂纹的情况下，计算了压电层的电压分布。结果表明将压电薄膜作为传感器来进行分层探测是可行的。文中最后考虑了多种因素对传感灵敏度的影响。
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| 关 键 词： | 分层 压电传感器 探伤 有限元法 |
NUMERICAL ANALYSIS FOR DETECTION OF DELAMINAION IN LAMINATES BY PIEZOELECTRIC SENSORS |
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| Abstract: | A composite laminate with bonded piezoelectric film as sensor under uniaxilstretching is analyzed by means of modified quasi threed-dimensional finite element method.The influence of piezoelectric layer on interlaminar stresses is discussed and then the voltagedistribution on piezoelectric sensor is obtained in the presence of delamination. The resultsshow that it is feasible to detect the delamination by use of piezoelectric sensor. Finally,various affecting factors are discussed. |
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| Keywords: | delamination piezoelectric sensor damage detection FEM |
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