کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7169302 | 1463043 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determining critical CTOA from energy-load curves with DWTT specimen
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Determining critical CTOA from energy-load curves with DWTT specimen Determining critical CTOA from energy-load curves with DWTT specimen](/preview/png/7169302.png)
چکیده انگلیسی
Running ductile fracture is one of the most catastrophic accidents of pipelines for natural gas transportation. Crack arrest toughness is important for preventing crack extension to a long distance along pipeline. Critical crack tip opening angle (CTOAC) is a promising parameter for characterizing crack arrest toughness. In this study, a new method is proposed to calculate the CTOAC from the energy-load curves in an instrumented drop weight tearing test (DWTT). Numerical analyses with the Gurson damage model have been conducted to verify the proposed method. It shows that results calculated from the energy-load curves are slightly lower than the results measured from specimen surface. Results calculated from the proposed method also agree well with experimental results reported in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 186, December 2017, Pages 47-58
Journal: Engineering Fracture Mechanics - Volume 186, December 2017, Pages 47-58
نویسندگان
Jian Shuai, Shengwen Tu, Junqiang Wang, Xiaobo Ren, Jianying He, Zhiliang Zhang,