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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Dynamic Behavior of Materials VIII
Presentation Title A Low-cost, Laboratory-scale Method to Identify Regions of Microstructural Changes in Response to Dynamic Loading Conditions
Author(s) Benjamin Lund, Judith Schneider
On-Site Speaker (Planned) Benjamin Lund
Abstract Scope Typically the dynamic material properties necessary to support first-principles modeling require a variety of test apparatus to cover the strain rate range from 10^0 to 10^8 s^-1 . Generation of the experimental data can be both time consuming and costly. Often there are discontinuities across the range of strain rates, due to either testing apparatus artifacts or microstructural changes. This work outlines the development of a low-cost laboratory-scale experiment method that utilizes metal cutting techniques to support first-principles modeling of structural material responses under a range of energetic loadings. The range of strain rates involved is similar to that experienced in metals in advance of a cutting tool with shear strains up to 4 at shear strain rates up to 10^8 s^-1. By characterizing the chips formed at the varying strain rates, regions of microstructural changes can be readily identified and stress versus strain curves of interest can be produced.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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