کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
294393 511405 2006 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of weld geometric profile on fatigue life of cruciform welds made by laser/GMAW processes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Effect of weld geometric profile on fatigue life of cruciform welds made by laser/GMAW processes
چکیده انگلیسی

The effect of weld geometric profile on fatigue life of laser-welded HSLA-65 steel is evaluated. Presented are results of cruciform-shaped fatigue specimens with varying weld profiles loaded cyclically in axial tension–compression. Specimens with a nearly circular-weld profile were created at 133 cm/min, as part of this effort, with a hybrid laser gas-metal-arc welding GMAW (L/GMAW) process. The ability of the laser-welding process to produce desirable weld profiles resulted in fatigue life superior to that of conventional welds. Comparison of finite-element analyses, used to estimate stress-concentration factors, to the hot spot and mesh insensitive approaches for convergent cases with smooth weld transitions is presented in relation to the experimental results. When a geometry-based stress concentration factor is used, the fatigue tests show much less variability and can be lumped into one master curve.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Structures - Volume 19, Issue 1, January 2006, Pages 1–22
نویسندگان
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