کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7171288 | 1463707 | 2018 | 45 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of weld toe geometry on fatigue life of lap fillet welded ultra-high strength steel joints
ترجمه فارسی عنوان
اثر هندسه جوش بر روی عمر خستگی اتصالات فولادی فوق العاده با مقاومت بالا
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کلمات کلیدی
انگشتر جوش مفاصل جوش پیش بینی زندگی، عوامل شدت تنش فولاد کربن،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
The effect of arc weld toe geometry on pulsating bending fatigue performance was studied using as-welded and toe machined welded joints of an ultra-high strength steel with a tensile strength grade of 980â¯MPa. Weld toe machining significantly improved the fatigue strength of the welded joints even when the radius of the machined toe was 0.5â¯mm, although this is smaller than the minimum size described in the document, International Institute of Welding (IIW) Recommendations on Post Weld Improvement of Steel and Aluminium Structures, which applies to welded joints of steel with plate thicknesses from 6â¯mm to 50â¯mm. The fatigue cracks of the as-welded joints initiated along the bottom of the ripple pattern in the weld metal near the weld toe. A fatigue life prediction based on the fracture mechanics approach for the as-welded and the toe machined joints suggested that consideration of the microscopic geometry of the weld ripple pattern is important for improving the accuracy of fatigue life predictions of as-welded joints.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Fatigue - Volume 116, November 2018, Pages 409-420
Journal: International Journal of Fatigue - Volume 116, November 2018, Pages 409-420
نویسندگان
Tsuyoshi Shiozaki, Naoki Yamaguchi, Yoshikiyo Tamai, Jiro Hiramoto, Kazuhiro Ogawa,