کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4923253 | 1430691 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
True stress-strain curves for ASTM A992 steel for fracture simulation at elevated temperatures
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
This paper presents the results of an investigation into the development of true stress-strain curves for ASTM A992 steel at elevated temperatures up to 1000 °C. These true stress-strain curves are intended to support numerical simulations of fracture of steel members and connections subjected to heating in severe fires. Such simulations require data on true stress-strain response at very large strains associated with fracture. The true stress-strain curves developed in this study are divided into two main parts; the part prior to necking and the part after the onset of necking. Prior to necking, true stress-strain curves are directly derived from engineering stress-strain curves of ASTM A992 steel determined from high-temperature tensile coupon tests. After the onset of necking, true stress-strain curves are inferred from the engineering stress-strain curves by a trial and error process involving finite element simulations of tension coupon tests.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Constructional Steel Research - Volume 139, December 2017, Pages 272-279
Journal: Journal of Constructional Steel Research - Volume 139, December 2017, Pages 272-279
نویسندگان
Wenyu Cai, Mohammed A. Morovat, Michael D. Engelhardt,