Designing a New Dynamic Mechanical Analysis (DMA) System for Testing Viscoelastic Materials at High Frequencies
Designing a New Dynamic Mechanical Analysis (DMA) System for Testing Viscoelastic Materials at High Frequencies
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DOI：
10.1155/2019/7026267
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发表时间：
2019-01-01
影响因子：
3.2
通讯作者：
Farhad, Siamak
中科院分区：
文献类型：
--
作者：
Esmaeeli, Roja;Aliniagerdroudbari, Haniph;Farhad, Siamak
本研究的目的是设计一种新的动态力学分析（DMA）测量系统，可以在高达10 kHz的频率下进行剪切试验，应变振幅足以在高频变形应用中操作的粘弹性材料，如轮胎橡胶。市场上现有的DMA系统不能有效地操作用于处理材料的高频变形的应用的粘弹性材料性质的准确和直接的测量。因此，可用的DMA系统用于在低频和低温下的间接测量，然后使用时间-温度叠加原理来预测高频下的特性。本研究的目的是使测试的范围足够宽，以消除使用的时间-温度叠加原理在粘弹性材料的性能的测定。直接测量粘弹性材料的性能和提高结果的准确性是设计一种新的DMA系统的主要动机。为此，国家的最先进的技术，以实现高频率和应变振幅以及仪器和控制系统进行了研究。本文介绍了设计过程。
The aim of this study is to design a new dynamic mechanical analysis (DMA) measurement system that can operate for shear tests at frequencies as high as 10kHz with strain amplitudes sufficient for viscoelastic materials operating in high-frequency deformation applications, such as tire rubbers. The available DMA systems in market cannot effectively operate for accurate and direct measurement of viscoelastic material properties for applications dealing with high-frequency deformation of materials. Due to this, the available DMA systems are used for indirect measurements at low frequencies and low temperatures, followed by using time-temperature superposition principle to predict the properties at high frequencies. The goal of this study is to make the range of the test broad enough to eliminate the use of the time-temperature superposition principle in the determination of properties of viscoelastic materials. Direct measurement of viscoelastic material properties and increasing the accuracy of results are the main motivations to design a new DMA system. For this purpose, the state-of-the-art technologies to achieve high frequencies and strain amplitudes as well as instrumentation and control of the system are studied. The design process is presented in this paper.