چکیده مقاله
Significant stress concentrations in welded structures typically arise at crack like defects and at weld toes The geometry of the weld toe is therefore one of the primary geometrical features that control the fatigue life of welded components This work is focused on evaluating three non destructive methods to measure the weld toe radius: Weld Impression Analysis WIA , Laser Scanning Profiling LSP and Structured Light Projection SLP Measurements were first done on a reference block with five different radii The accuracy of the three methods was estimated by comparing the results with those measured by cross sectioning the reference block and then using image analysis to determine the radius Finally the non destructive methods were employed to measure the weld toe radius for a corner fillet weld Results show that all three methodspresent precise and accurate values when the cross section of the object being measured is circular For noncircular cross sections such as a weld toe, the measurements are associated with a larger scatter WIA seems to be a suitable and economical choice when the aim is just finding the radius However, SLP is a good method to fast obtain a three dimensional image of the weld profile, which also makes it more suitable for quality control in production
کلیدواژهها
نویسندگان
e Harati
Dept of Engineering Science, UniversityWest, SE ۴۶۱ ۸۶ Trollhättan, Sweden
m Ottosson
Dept of Engineering Science, UniversityWest, SE ۴۶۱ ۸۶ Trollhättan, Sweden
l Karlsson
Dept of Engineering Science, UniversityWest, SE ۴۶۱ ۸۶ Trollhättan, Sweden
l-e Svensson
Dept of Engineering Science, UniversityWest, SE ۴۶۱ ۸۶ Trollhättan, Sweden
شیوه ارجاع
Harati, e and Ottosson, m and Karlsson, l and Svensson, l-e,1392,Non-destructive measurement of weld toe radius using Weld Impression Analysis, Laser Scanning Profiling and Structured Light Projection methods,The first international conference on welding and non-destructive testing, the 14th national conference on welding and inspection, and the third national conference on non-destructive testing.,Karaj
ارائهشده در
مجموعه مقالات اولین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، چهاردهمین کنفرانس ملی جوش و بازرسی و سومین کنفرانس ملی آزمایش های غیر مخرب6 اسفند 1392 · کرج