کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
775484 898334 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental T33-stress formulation of test specimen thickness effect on fracture toughness in the transition temperature region
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Experimental T33-stress formulation of test specimen thickness effect on fracture toughness in the transition temperature region
چکیده انگلیسی

This paper describes a study of the test specimen thickness effect on fracture toughness of a material, in the transition temperature region, for CT specimens. In addition we studied the specimen thickness effect on the T33-stress (the out-of-plane non-singular term in the series of elastic crack-tip stress fields), expecting that T33-stress affected the crack-tip triaxiality and thus constraint in the out-of-plane direction. Finally, an experimental expression for the thickness effect on the fracture toughness using T33-stress is proposed for 0.55% carbon steel S55C. In addition to the fact that T33 (which was negative) seemed to show an upper bound for large B/W, these results indicate the possibility of improving the existing methods for correlating fracture toughness obtained by test specimen with the toughness of actual cracks found in the structure, using T33-stress.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 77, Issue 5, March 2010, Pages 867–877
نویسندگان
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