The formulas of general force displacement electric fields for piezoelectric laminated shell were derived according to the laminate theory and piezoelectric constitutive equations.
并由复合材料板壳的广义内力公式和压电本构关系，导出压电层合壳的广义内力-位移-电场关系；
The ABO3 type materials have been used in memeries and photoelectric fields due to its excellent electrical properties such as piezoelectric, pyroelectric effect.
ABO3钙钛矿型材料具有优异的电学性能如压电效应、热释电效应，因此在存储器等领域都有广泛应用。
Thus, it is of theoretical and practical importance to study the electro-elastic fields near the fibers in piezoelectric composites.
因此，研究压电复合材料中纤维附近的电弹场无论在理论上还是实际工程中都具有重要的意义。
The study shows that the coupled elastic and electric fields inside piezoelectric med ia depend on the speed of the crack propagation, and have singularity at the cr ack tip.
研究表明：介质内的耦合场与裂纹运动速度有关，在裂纹尖端有奇异；
For the piezoelectric crystal, not only a mechanical source distribution at the surface, but an electrical source distribution also can excite the elastic wave fields.
对于压电晶体，不仅表面力源，而且表面电源分布也能激发弹性波场。
For the piezoelectric crystal, not only a mechanical source distribution at the surface, but an electrical source distribution also can excite the elastic wave fields.
对于压电晶体，不仅表面力源，而且表面电源分布也能激发弹性波场。
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