Paper Title:
Interaction of Mechanical Loading with Residual Stresses in Pressure Vessels
  Abstract

Assessment of the integrity of structures such as reactor pressure vessels is a critical issue in relevant industries. In a full integrity assessment, the presence of initial residual stresses (RS) needs to be taken into account. An initial RS field is introduced into a type 316 stainless steel cylindrical vessel with no defects and to one with a partial circumferential crack on its outer surface. Relaxation of RS following several proof load cycles, in form of internal pressure, applied to the vessel is explored using finite element simulations. It is found that the proof loading process generally relaxes the RS and is proved to be beneficial to both cracked and un-cracked vessels with or without the presence of initial RS. Interaction of residual stresses with warm pre-stressing is further investigated using A533B steel at room and low temperature subjected to axial loading. The results are compared with similar analyses but with no introduction of an initial RS field to explore the interaction effects on fracture resistance, as well as the role of partial crack on the RS distribution / redistribution. The differences are discussed and illustrated.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
2278-2283
DOI
10.4028/www.scientific.net/KEM.297-300.2278
Citation
S. Hadidi-Moud, C. E. Truman, D. J. Smith, "Interaction of Mechanical Loading with Residual Stresses in Pressure Vessels", Key Engineering Materials, Vols. 297-300, pp. 2278-2283, 2005
Online since
November 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yoon Suk Chang, T.R. Lee, Jae Boong Choi, Young Jin Kim
Abstract:The influences of stress triaxiality on ductile fracture have been emphasized to explain the geometry independent fracture resistance...
2403
Authors: Yoon Suk Chang, Ki Hun Song, Sang Min Lee, Jae Boong Choi, Young Jin Kim
Abstract:The wall thinning due to erosion, corrosion and flow accelerated corrosion is one of critical issues in nuclear industry. To secure against...
670
Authors: Yun Jae Kim, Chang Kyun Oh, Chang Sik Oh
Abstract:This paper quantifies the effects of geometry, the loading mode and the specimen size on fracture toughness of the API X65 steel, via plane...
667
Authors: M. Foroutan, M.E. Aalami-Aleagha, S. Pirmoradi
Abstract:In this paper effect of joint groove geometry on the residual stresses in circumferentially butt-welded still pipes is investigated by the...
229
Authors: Marco Valente
Chapter 1: Composites
Abstract:This paper presents the results of experimental tests and numerical analyses concerning the influence of repeated cyclic loading and...
188