کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7226856 | 1470616 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical and ductile fracture performances of high strength structural steel Q690 after a fire: experimental investigation
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mechanical and ductile fracture performances of high strength structural steel Q690 after a fire: experimental investigation Mechanical and ductile fracture performances of high strength structural steel Q690 after a fire: experimental investigation](/preview/png/7226856.png)
چکیده انگلیسی
In this study, a total of 26 tests were conducted to investigate the post-fire mechanical and ductile fracture performances of high strength structural steel (HSSS) Q690. The purpose of this experimental research is to evaluate the residual strength and residual ductility of the HSSS Q690 after a fire. Tensile coupons obtained from the HSSS Q690 sheets were heated to various temperatures up to 900â, and then were cooled down in air to ambient temperature. Tensile coupon tests were carried out to obtain their post-fire nominal stress-nominal strain curves, post-fire true stress-true strain curves, corresponding mechanical properties (including yield stress, ultimate strength, Poisson's ratio, elastic modulus and elongation), and ductile fracture behaviors. Test results showed that the HSSS Q690 can keep the unchanged mechanical performances after it experiences temperatures up to 600â. And then a set of prediction equations are obtained to evaluate the post-fire mechanical performances of such high strength steels. The results presented in this experimental study are expected to lead to accurate assessing the post-fire performances, including mechanical performances and ductility performances, of the HSSS Q690.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Engineering - Volume 210, 2017, Pages 496-503
Journal: Procedia Engineering - Volume 210, 2017, Pages 496-503
نویسندگان
Chen Siwei, Jiang Shaokun, Guo Houzuo, Cao Huixuan, Luo Yifeng, Lan Kang,