Authors: Changgang, Geng
Xiangping, Li
Xin, Lu
Title: Materials Characterization at High Speed by Dynamic Tensile Tests
Language (ISO): en
Abstract: In this paper, the dynamic deformation behaviors of 2 aluminum alloys (AA6016, AA5182) and 2 steels (v 1158, FeP04) are investigated. Firstly, the test method, an improved Hopkinson pressure bar test, is introduced. Then, the test results are presented and analyzed. The strain rate range used in this study is between 290 s^(-1) and 1750 s^(-1).The test results show that the yield stresses of all four tested materials increase along with the increase of strain rate, but the ductility does not. An interesting finding is that the tested Al alloys demonstrated larger elongation than those of steels. In conventional tensile tests, as it is well known, the tensile elongation of low carbon steels is usually much higher than the one of Al alloys. So, it can be predicted that the aluminum alloys could have better formability than the steels in high speed forming processes, though the underlying mechanism is not fully understood.
Subject Headings: aluminum alloy
high speed
material test
steel
URI: http://hdl.handle.net/2003/27073
http://dx.doi.org/10.17877/DE290R-12936
Issue Date: 2006
Publisher: Institut für Umformtechnik - Technische Universität Dortmund
Is part of: 2nd international conference on high speed forming, March 20th - 21st, 2006, Dortmund, Germany
Appears in Collections:ICHSF 2006

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