著者

Sorapong PAVASUPREE Supachai NGAMSINLAPASATHIAN Yoshikazu SUZUKI Susumu YOSHIKAWA

出版者

The Japan Society of Mechanical Engineers

雑誌

Journal of Solid Mechanics and Materials Engineering (ISSN:18809871)

巻号頁・発行日

vol.2, no.1, pp.R01-R01, 2008 (Released:2008-01-31)

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This article has been found to be a duplicate publication of their article on another journal, and thus retracted by the Editor.

著者

Sorapong PAVASUPREE Supachai NGAMSINLAPASATHIAN Yoshikazu SUZUKI Susumu YOSHIKAWA

出版者

The Japan Society of Mechanical Engineers

雑誌

Journal of Solid Mechanics and Materials Engineering (ISSN:18809871)

巻号頁・発行日

vol.1, no.4, pp.459-468, 2007 (Released:2007-04-27)

参考文献数

29

被引用文献数

2 2

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This article has been found to be a duplicate publication of their article on another journal, and thus retracted by the Editor.

著者

Shinji TANIMURA Hiroyuki HAYASHI Terumi YAMAMOTO Koji MIMURA

出版者

The Japan Society of Mechanical Engineers

雑誌

Journal of Solid Mechanics and Materials Engineering (ISSN:18809871)

巻号頁・発行日

vol.3, no.12, pp.1263-1273, 2009 (Released:2009-12-25)

参考文献数

19

被引用文献数

11 18

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Through intensive analysis of the tensile stress-strain curves of a variety of steel sheets over a wide range of strain rates on the order of 10-2 ∼103 s-1 obtained by using the Sensing Block Type High Speed Material Testing System, it was confirmed that the newly-partially extended constitutive model (Tanimura-Mimura Model) is useful to simulate the dynamic stress-strain curves for the entire range of deformation reaching as far as fracture over the wide strain rate range, as long as the quasi-static stress-strain curve of the material concerned is only known in advance. Dynamic tensile properties, over the wide strain rate range and the entire strain region reaching the true fracture strain, of ten kinds of aluminum alloys, which compose of a wide strength level from a commercial pure aluminum to the extra super duralumin are systematically studied. It was cleared that the aluminum alloys belonging to the one group exhibit the positive strain rate sensitivity and the aluminum alloys belonging to another group exhibit the negative sensitivity or almost non sensitivity. It was found that the values of the true fracture strain εf are substantially not affected by the strain rates, for all the tested aluminum alloys, and are closely related to the values of the tensile strength σB whose values are obtained by the quasi-static nominal tensile stress-strain curves.