کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
790677 1466073 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On residual stress prescriptions for fitness for service assessment of pipe girth welds
ترجمه فارسی عنوان
در مورد تنش های باقی مانده تناسب اندام برای ارزیابی خدمات جوش های لوله ای لوله
کلمات کلیدی
مشخصات استرس باقی مانده، جوشکاری، اجزای جوش داده شده جوش برقی، تناسب اندام برای خدمات، ارزیابی شکستگی، طرح تخمینی، نظریه شل، تجزیه غشاء و خم شدن
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• Critically assessed girth weld residual stress profiles in major FFS Codes and Standards.
• Identified deficiencies in relating to pipe geometry, heat input, and axial distance from weld.
• Presented a shell theory based scheme for prescribing full-field residual stress profiles.

This paper aims to provide a detailed assessment of some of the existing residual stress profiles stipulated in widely used fitness-for-service assessment codes and standards, such as BS 7910 Appendix Q and API 579 RP Annex E, by taking advantage of some comprehensive residual stress studies that have recently become available. After presenting a case study on which residual stress measurements are available for validating finite element based residual stress analysis procedure, residual stress profiles stipulated in BS 7910 for pipe girth welds are selected for detailed evaluation by comparing residual stress distribution characteristics shown in parametric finite element results. A shell theory based full-field residual stress profile estimation scheme is then presented to illustrate how an improved estimation of residual stress profiles can be achieved in light of some of the deficiencies in BS 7910 and API 579 identified in this study.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pressure Vessels and Piping - Volumes 123–124, November–December 2014, Pages 19–29
نویسندگان
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