The elastic modulus of foam core and composite skins and the stiffness of sandwich are analyzed.
分析了复合材料面层的弹性常数、泡沫芯层的模量和夹层结构的刚度；
The paper summed up and summarized calculating method for elastic modulus of dry core sample and gave brief analysis for feature and practicelity of different methods.
本文对干岩石弹性模量的计算方法进行了归纳和总结，并对各种方法的特点、实用性进行了简要分析。
The ferrule effect is influenced by elastic modulus of post and core materials.
箍效应受桩核材料弹性模量的影响。
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