22.09.2021 by Aileen Sammler, Dr. Natalie Rudolph

Material Science in Additive Manufacturing: Estimating Residual Stresses in PBF Parts Using Dynamic Mechanical Analysis

In our last episodes, we focused mainly on thermal material behavior measured with Differential Scanning Calorimetry (DSC). Today, Dr. Nathalie Rudolph will talk about how residual stresses can be estimated using Dynamic Mechanical Analysis (DMA).

This week’s topic: Estimating Residual Stresses in PBF Parts using DMA

We use Dynamic Mechanical Analysis (DMA) to measure the temperature-dependent viscoelastic properties of a material and determine its modulus of elasticity and damping values by applying an oscillating force to the sample. 

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Thermal Analysis and Rheology in Polymer Additive Manufacturing

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More Additive Manufacturing applications by NETZSCH

In our next episode, we will talk about warpage prediction of PBF parts using Coefficient of Linear Thermal Expansion (CLTE/CTE)The coefficient of linear thermal expansion (CLTE) describes the length change of a material as a function of the temperature.CTE.