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摘要: 应用冲击加载技术,研究了PVDF膜在与其极化矢量方向平行的冲击波压缩下的冲击电响应。通过实验和数值模拟得到了PVDF释放电荷q(t)与冲击波压力p(t),给出了峰值电荷qmax与峰值压力pmax的关系,建立了PVDF膜的冲击电响应的理论模型及数值模拟方法。Abstract: The electrical response of PVDF film along polarization direction under shock loading was studied experimentally and numerically. The release charge profiles, q(t), from PVDF under loading were obtained. The relation between maximum released charge and peak pressure was given. Also, the numerical simulation method for PVDF response for shock loading was developed.
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Key words:
- shock loading /
- PVDF film /
- charge
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Bauer F. PVF2 Polymers: Ferroelectric Polarization and Piezoelectric Properties under Dynamic Pressure and Shock Wave Action [J]. Ferroelectries, 1983, 49: 231. Lemar E R, Forbes J W, Tasker D G. Polyvinylidene Fluoride Transducer for Dynamic Pressure Measurements [A]. Asay J R, Graham R A, Straub G K. Shock Wave in Condensed Matter-1984 [C]. New York: Elsevier Publishers, 1985: 503-508. Lysne P C. Resistivity of Shock-Wave Compressed PZT 95/5 [J]. J Appl Phys, 1977, 148: 4565-4570. 温殿英, 林其文. 冲击波压缩PZT95/5铁电陶瓷的电介质击穿[J]. 高压物理学报, 1998, 12(3): 199-206.
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