کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
771405 | 897630 | 2010 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Comparison of CTOD standards: BS 7448-Part 1 and revised ASTM E1290 Comparison of CTOD standards: BS 7448-Part 1 and revised ASTM E1290](/preview/png/771405.png)
Crack tip opening displacement (CTOD) has been calculated using the plastic hinge model with an assumed rotational center since the British Standards Institution (BS) standardized BS5762 in 1979. The American Society for Testing and Materials (ASTM) accepted the plastic hinge model and standardized E1290 in 1989. However, ASTM revised E1290 in 2002, and has proposed a conversion from J to CTOD. CTOD-based fracture toughness evaluation has been widely used for the defect assessment of many welded structural components, and two different CTOD calculations could lead to confusion for Fitness-for-Service. In this study, the effects of CTOD testing methodologies on CTOD values were investigated according to round robin tests conducted by the Japan Welding Engineering Society (WES), and the concept of CTOD as a fracture parameter is discussed.
Journal: Engineering Fracture Mechanics - Volume 77, Issue 2, January 2010, Pages 327–336