Dynamic testing of large AISI-316L steel specimens behaviour using LDTF |
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| Authors: | F. Casadei C. Delzano G. Magonette J.P. Halleux G. Verzeletti |
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| Affiliation: | 1. The State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science & Technology, 430074 Wuhan, PR China;2. The State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science & Technology, 430074 Wuhan, PR China;1. Thermomechanical Metallurgy Laboratory (LMTM) – PX Group Chair, École Polytechnique Fédérale de Lausanne (EPFL), CH-2002 Neuchâtel, Switzerland;2. Structure and Mechanics of Advanced Materials, Photon Science Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen, Switzerland;3. Materials Science Group, Photon Science Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen, Switzerland |
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| Abstract: | The paper presents the results of a series of dynamic experiments on AISI-316L steel specimens having a cross section of 2000 mm2 and a gauge length of 350 mm subject to dynamic traction up to rupture. Results for dynamic tests at a nominal strain rate up to 50 s−1 are compared to quasi-static ones, showing an important increase in both yield stress and flow stress. The experimental techniques are described, with special emphasis on full-field optical strain measurements based on Moiré interferometry. A 1-D numerical analysis of the experiments is presented. |
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