کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5474308 | 1520652 | 2017 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of stress intensity factor for a surface cracked butt welded joint based on real welding residual stress
ترجمه فارسی عنوان
ارزیابی فاکتور شدت تنش برای یک سطح جوش داده شده با شکستگی سطحی بر اساس تنش باقی مانده جوشکاری واقعی
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
چکیده انگلیسی
This paper examines the evaluation of stress intensity factor (SIF) for surface cracks in a non-uniform residual stress field. A technique that based on utilizing the crack face traction (CFT) integral implemented in the interaction integral method using an open source code for models with a particular crack-block mesh density was presented. 3-D flat plate models with different crack-block mesh densities were employed under different loading conditions to examine the accuracy, conditions and easiness to use of the present technique. The influence of the crack-block mesh density on the calculated SIF solutions due to the application of non-uniform tractions over the crack face was discussed. A considerable improvement of SIF solutions calculated by crack face tractions was observed when the crack-block mesh density becomes fine enough. The effectiveness of the present technique was then validated for different 3-D numerical examples of welded joints under different loading conditions. The present technique was thereafter employed to evaluate SIF for a surface crack in a butt welded joint using real welding residual stress. The SIF solution calculated due to the application of welding residual stress was verified with that given by mechanical loading (without welding residual stress).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 138, 1 July 2017, Pages 123-139
Journal: Ocean Engineering - Volume 138, 1 July 2017, Pages 123-139
نویسندگان
Ramy Gadallah, Naoki Osawa, Satoyuki Tanaka,