DYNAMIC TENSILE PROPERTIES OF IRON AND STEELS FOR A WIDE RANGE OF STRAIN RATES AND STRAIN

Autor:	Shinji Tanimura, Terumi Yamamoto, Nobusato Kojima, Hiroyuki Hayashi, Koji Mimura
Rok vydání:	2008
Předmět:	Materials science Fracture toughness Flexural strength Strain (chemistry) Stress–strain curve Ultimate tensile strength Statistical and Nonlinear Physics Slow strain rate testing Strain rate Flow stress Composite material Condensed Matter Physics
Zdroj:	International Journal of Modern Physics B. 22:1255-1262
ISSN:	1793-6578 0217-9792
DOI:	10.1142/s0217979208046621
Popis:	The tensile stress-strain curves of iron and a variety of steels, covering a wide range of strength level, over a wide strain rate range on the order of 10−3 ~ 103 s −1, were obtained systematically by using the Sensing Block Type High Speed Material Testing System (SBTS, Saginomiya). Through intensive analysis of these results, the strain rate sensitivity of the flow stress for the large strain region, including the viscous term at high strain rates, the true fracture strength and the true fracture strain were cleared for the material group of the ferrous metals. These systematical data may be useful to develop a practical constitutive model for computer codes, including a fracture criterion for simulations of the dynamic behavior in crash worthiness studies and of work-pieces subjected to dynamic plastic working for a wide strain rate range.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::222a61dc81d175f2166a87927901f704 https://doi.org/10.1142/s0217979208046621 Zobrazit plný text záznamu