Residual Stresses in Weld-Deposited Clad Pressure Vessels and Nozzles

Author:

Jones D. P.1,Mabe W. R.1,Shadley J. R.2,Rybicki E. F.2

Affiliation:

1. Bechtel Bettis, Inc., P.O. Box 79, ZAP-34E, West Mifflin, PA 15122-0079

2. University of Tulsa, Tulsa, OK 74104-3189

Abstract

Results of through-thickness residual stress measurements are provided for a variety of samples of weld-deposited 308/309L stainless steel and Alloy 600 cladding on low-alloy pressure vessel ferritic steels. Clad thicknesses between 5 and 9 mm on samples that vary in thickness from 45 to 200 mm were studied. The samples were taken from flat plates, from a spherical head of a pressure vessel, from a ring-segment of a nozzle bore, and from the transition radius between a nozzle and a pressure vessel shell. A layer removal method was used to measure the residual stresses. The effects of uncertainties in elastic constants (Young’s modulus and Poisson’s ratio) as well as experimental error are assessed. All measurements were done at room temperature. The results of this work indicate that curvature plays a significant role in cladding residual stress and that tensile residual stresses as high as the yield stress can be measured in the cladding material. Since the vessel from which the spherical and nozzle corner samples were taken was hydrotested, and the flat plate specimens were taken from specimens used in mechanical fatigue testing, these results suggest that rather high tensile residual stresses can be retained in the cladding material, even after some mechanical loading associated with hydrotesting.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference14 articles.

1. Ferrill, D. A., Juhl, P. B., and Miller, D. R., 1966, “Measurement of Residual Stresses in a Heavy Weldment,” Welding Research Supplement, Nov., pp. 504s–514s.

2. Friedman E. , 1975, “Thermomechanical Analysis of the Welding Process Using the Finite Element Method,” ASME JOURNAL OF PRESSURE VESSEL TECHNOLOGY, Vol. 97, pp. 206–213.

3. Nickell, R., and Hibbit, H., 1975, “Thermal and Mechanical Analysis of Welded Structures,” Nuclear Engineering and Design, No. 32, pp. 110–120.

4. Rybicki E. F. , SchmueserD. W., StonesiferR. B., GroomJ. J., and MishlerH. W., 1978, “A Finite Element Model for Residual Stresses and Deflections in Girth-Butt Welded Pipes,” ASME JOURNAL OF PRESSURE VESSEL TECHNOLOGY, Vol. 100, Aug., pp. 256–262.

5. Cheng, W. L., and Punch, E. F., 1997, “Analysis of Fatigue Crack Growth in a Residual Stress Field using Alternating Finite Element Method,” ASME PVP-Vol. 354, Current Topics in the Design and Analysis of Pressure Vessels and Piping.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Redistribution of residual stress by thermal shock in reactor pressure vessel steel clad with nickel alloy;International Journal of Pressure Vessels and Piping;2019-01

2. Burst Analysis of Cylindrical Shells;Journal of Pressure Vessel Technology;2008-01-17

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3