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Study on Precise Measurement of Shear Modulus of Polymer Grouting Materials Using Piezoceramic Bender Elements

机译:用压电母弯剂元素精确测量聚合物灌浆材料的剪切模量

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In this paper, piezoceramic bender elements technology is first used to test the dynamic shear modulus of polymer grouting materials. The test procedure is designed and the related mould is manufactured. The problems of influencing the precise measuring the transmitting time of shear wave are solved including system delay, excitation signal, frequency and the method of determining the transmitting time. Based on it, the influence on polymer dynamic shear modulus of density and excitation frequency is analyzed, the dynamic elastic modulus and static elastic modulus are contrasted and the relation of polymer grouting materials and dam construction materials is investigated. This study provides basic theoretical reference for dynamic response analysis and engineering application of polymer grouting materials.
机译:本文首先用于测试聚合物灌浆材料的动态剪切模量。 设计了测试程序,制造了相关模具。 影响剪切波的发射时间的影响的问题包括系统延迟,激励信号,频率和确定发送时间的方法。 基于它,分析了对聚合物动态剪切模量的影响和激发频率的影响,对形成的动态弹性模量和静态弹性模量进行了对比,并研究了聚合物灌浆材料和坝施工材料的关系。 本研究为聚合物灌浆材料的动态响应分析和工程应用提供了基本的理论参考。

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