A. Yazdanmehr and H. Jahed
Large Strain CompressionTension Behavior of AZ31B Rolled Sheet in the Rolling Direction
758 - 762
2018
12
8
International Journal of Aerospace and Mechanical Engineering
https://publications.waset.org/pdf/10009279
https://publications.waset.org/vol/140
World Academy of Science, Engineering and Technology
Being made with the lightest commercially available industrial metal, Magnesium (Mg) alloys are of interest for lightweighting. Expanding their application to different material processing methods requires Mg properties at large strains. Several roomtemperature processes such as shot and laser peening and hole cold expansion need compressive large strain data. Two methods have been proposed in the literature to obtain the stressstrain curve at high strains 1) antibuckling guides and 2) small cubic samples. In this paper, an antibuckling fixture is used with the help of digital image correlation (DIC) to obtain the compressiontension (CT) of AZ31BH24 rolled sheet at large strain values of up to 10.5. The effect of the antibucking fixture on stressstrain curves is evaluated experimentally by comparing the results with those of the compression tests of cubic samples. For testing cubic samples, a new fixture has been designed to increase the accuracy of testing cubic samples with DIC strain measurements. Results show a negligible effect of antibuckling on stressstrain curves, specifically at high strain values.
Open Science Index 140, 2018