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http://dx.doi.org/10.7234/composres.2022.35.1.038

Study of the Compressive Behavior of Polypropylene-low Glass Fiber Compound and Thermoplastic Olefin under High Strain Rate  

Lee, Se-Min (Department of Mechanical Convergence Engineering, Hanyang University)
Kim, Dug-Joong (Department of Mechanical Convergence Engineering, Hanyang University)
Han, In-Soo (Hyundai Motor Group R & D Division)
Kim, Hak-Sung (Department of Mechanical Convergence Engineering, Hanyang University)
Publication Information
Composites Research / v.35, no.1, 2022 , pp. 38-41 More about this Journal
Abstract
In this study, the strain rate dependent tensile and compressive properties of PP-LGF and TPO was investigated under the high strain rate by using the Split Hopkinson Pressure Bar (SHPB). The SHPB is the most widely used apparatus to characterize dynamic mechanical behavior of materials at high strain rates between 100 s-1 and 10,000 s-1. The SHPB test is based on the wave propagation theory which was developed to give the stress, strain and strain rate in the specimen using the strains measured in the incident and transmission bars. In addition, to verify the strain data obtained from SHPB, the specimen was photographed with a high-speed camera and compared with the strain data obtained through the Digital Image Correlation (DIC).
Keywords
Split Hopkinson pressure bar; Digital image correlation; PP;
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