Dynamic mechanical analysis (abbreviated DMA) is a technique used to study and characterize materials. It is most useful for studying the viscoelastic behavior of polymers. A sinusoidal stress is applied and the strain in the material is measured, allowing …

DMA （Dynamic mechanical analysis） 动态热机械分析， 它是一种用于测量粘弹性材料的固态流变特性随频率和温度变化的技术。 常用于 动态力学测试，主要测定在一定控制条件下，材料的温度、频率、时间、应力、应变与动态模量、损耗参数之间的关系，确定 玻璃化转变温度 、 次级松弛转变 等。 由于材料相对分子量的大小、分子取向、结晶度大小、交联和共聚等 结构参数 的变化会引起 力学性质 的变化，所以经常用于表征材料微观结构，研究聚合物材料分子结构与性能 …

2) Run 'lone-dma-test.exe' to start the DMA Test Application. 3) If there are any errors/failures, see the DMA Setup Guide for troubleshooting, and/or contact Support for assistance. A DMA speed test. Contribute to ShadowSyntax/lones-DMA-speed-test development by creating an account on GitHub.

2022年8月28日 · Dynamic mechanical analysis (DMA), also known as forced oscillatory measurements and dynamic rheology, is a basic tool used to measure the viscoelastic properties of materials (particularly polymers).…

DMA is the general name given to an instrument that mechanically deforms a sample and measures the sample response. The response to the deformation can be monitored as a function of temperature or time. What can be Studied with DMA? What does a DMA do? How does a DMA work? The Modulus: Measure of materials overall resistance to deformation.

DMA is used for measurement of various types of polymer materials using different deformation modes. There are tension, compression, dual cantilever bending, 3-point bending and shear modes, and the most suitable type should be selected depending on the sample shape, modulus and measurement purpose.

动态热机械分析（DMA）测量黏弹性材料的力学性能与时间、温度或频率的关系。 样品受周期性（正弦）变化的机械应力的作用和控制，发生形变。 用于进行这种测量的仪器称为动态热机械分析仪（又称 动态力学分析仪）DMA。 二．. DMA原理. 动态热机械分析仪（DMA）被广泛用于材料的粘弹性能研究，可获得材料的 动态储能模量， 损耗模量 和 损耗角正切 等指标。 DMA其测试原理同样是根据不同力学形态下 弹性模量 的变化来进行测试的，测试过程中，会对测试样品按照 …

Dynamic Mechanical Analysis (DMA) is a characterization method that can be used to study the behavior of materials under various conditions, such as temperature, frequency, time, etc.

Dynamic mechanical analysis (DMA) testing is a straightforward way to characterize materials in small-strain regimes. DMA is useful for characterizing polymer: Veryst uses DMA testing to characterize the viscoelastic response of materials over a …

2024年9月13日 · 动态机械分析（DMA）是通过测量材料在周期性应力或应变作用下的动态模量和力学损耗，来研究材料的粘弹性、蠕变和疲劳性能。 DMA测试通常采用正弦波振动方式，通过改变温度或频率来研究材料在不同条件下的力学性能。 2. 特点. （1）测试范围广：DMA可应用于各种高分子材料、复合材料、金属材料等。 （2）测试参数丰富：DMA测试可得到材料的储能模量、损耗模量、损耗因子等多个参数，全面反映材料的力学性能。 （3）温度范围宽：DMA测试可 …