Weld residual stresses and plastic deformation
- Tulsa Univ., OK (United States)
- Yokohama National Univ. (Japan)
Residual stresses due to welding can play a primary role in the performance of piping systems and pressure vessels. The stresses are high, in the range of the yield stress of the material, and can influence the fatigue and fracture behavior as well as component service life. Thus, it is important to have an understanding of weld residual stresses. The papers in this section address the important topic of residual stresses and failure analysis. The paper by Boyles reviews computer simulation in the prediction and analysis of fatigue, fracture, and creep of welded structures. The growing use of expert systems for these purposes is also covered. Karisson, et al, determine the deformations and stresses during the butt-welding of a pipe. The determination of residual deformations and stresses is also presented. Oddy, Goldak, and McDill propose a method to incorporate transformation plasticity in a finite element program. A three-dimensional analysis of a short longitudinal pipe weld in a typical pressure vessel steel is presented. Chaaban, Morin, Ma, and Bazergui study the influence of ligament thickness, strain hardening, expansion sequence, and level of applied expansion pressure on the interference fit in a model of a tube-to-tubesheet joint in a heat exchanger. This section contains papers dealing with models for plastic deformation. Imatani, Teraura, and Inoue formulate a viscoplastic constitutive model based on an anisotropic yield criterion. Comparisons with experimental results obtained using thin walled tubular specimens made from SUS 304 stainless steel show that the present yield criterion adequately accounts for prior deformation history. Niitsu, Horiguchi, and Ikegami investigate the plastic behavior of S25C mild steel tubular specimens subjected to combined axial and torsional loading at both constant and variable temperatures.
- OSTI ID:
- 5502004
- Report Number(s):
- CONF-890721-; ISBN: 0-7918-0325-5
- Resource Relation:
- Conference: Joint ASME/JSME pressure vessel and piping conference, Honolulu, HI (United States), 23-27 Jul 1989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
PRESSURE VESSELS
MATERIALS TESTING
MEETINGS
RESIDUAL STRESSES
STRESS ANALYSIS
WELDED JOINTS
PHASE TRANSFORMATIONS
ANISOTROPY
CREEP
DEFORMATION
ELASTICITY
FINITE ELEMENT METHOD
GASKETS
LEADING ABSTRACT
PIPE JOINTS
PLASTICITY
STAINLESS STEEL-304
THREE-DIMENSIONAL CALCULATIONS
YIELD STRENGTH
ABSTRACTS
ALLOYS
AUSTENITIC STEELS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CONTAINERS
CORROSION RESISTANT ALLOYS
DOCUMENT TYPES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS
MECHANICAL PROPERTIES
NICKEL ALLOYS
NUMERICAL SOLUTION
SEALS
STAINLESS STEELS
STEEL-CR19NI10
STEELS
STRESSES
TENSILE PROPERTIES
TESTING
360103* - Metals & Alloys- Mechanical Properties
360101 - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies
420205 - Engineering- Transport & Storage Facilities- (1980-)