... shapes (structures) work hardening Besides changing the direction of fluid flow, pipe bends do add necessary flexibility to the entire pipeline system. It has been theoretically proven by von Kàrmàn ( 1 ) that pipe bends acquire smaller flexural rigidity compared with straight pipes of the same...

... cracks ductile fracture finite element analysis pipelines pipes plasticity work hardening Lüders plateau fracture pipelines plastic bending reeling The reeling installation method for offshore pipelines consists of girth welding of 12 m long line pipes to form a several kilometer...

... and shutdown operations during the life of the plant is expected to be in the region of 50. 01 10 2010 08 02 2011 09 05 2011 09 05 2011 design engineering elastoplasticity heat exchangers pipes plastic deformation stress analysis work hardening Conventional tube...

... plasticity tensile strength work hardening bolted joints yield tightening nonlinear strain hardening The amount of increase in the bolt tension and the corresponding reduction in the joint clamp load on an elastically preloaded bolted joint are both affected by the type and location...

... be obtained. cracks elastic limit finite element analysis plasticity work hardening 23 02 2010 11 06 2010 13 10 2010 13 10 2010 Shames , I. H. , and Cozzarelli , F. A. , 1992 , Elastic and Inelastic Stress Analysis , Prentice-Hall , Englewood Cliffs...

... hardening variables such as back-stresses with respect to the geometry change. 17 09 2009 29 01 2010 31 08 2010 31 08 2010 elastic deformation elasticity plastic deformation plasticity pressure vessels work hardening yield stress plastic collapse isotropic hardening...

... toughness testing notch strength steel structural engineering work hardening yield stress CTOD is an elastic-plastic fracture mechanics parameter, and has been widely used for the evaluation of fracture toughness and structural integrity. The British Standards Institution standardized CTOD...

... experience gained throughout the years. However, this is not sufficient to avoid occasional unsatisfactory operating joints and more research is required. elastoplasticity failure (mechanical) finite element analysis internal stresses mechanical contact pipes sheet materials work hardening...

..., they presented plane stress analysis for the open-end conditions. analytical solution autofrettage residual stresses thick-walled tube Bauschinger effect elasticity internal stresses pipes plasticity polynomials steel wear work hardening 13 08 2008 20 01 2009 23 09...

... element analysis mechanical contact pipes rollers (machinery) rolling sheet materials work hardening tube-tubesheet joint strength projection initial clearance finite element During the rolling process the tube is projected from the primary face of the tubesheet for many reasons...

... dependent only on the strain hardening exponent. 26 09 2007 24 12 2008 21 04 2009 crack-edge stress field analysis finite element analysis structural engineering work hardening fracture constraint elastic-plastic finite-element analysis crack-tip fields...

... model. finite element analysis internal stresses joining processes mechanical contact pipes rollers (machinery) sheet materials work hardening 30 05 2006 31 01 2007 21 08 2008 2008 American Society of Mechanical Engineers ...

..., and their amplitude ranged from 0.3 mm to 1.0 mm . Tension coupon tests were conducted on the intrados, extrados, and virgin materials of the specimens. It was revealed that the extrados material exhibited an increase in yield strength due to work hardening and that the intrados material demonstrated a reduction...

... and large deformation analyses. The calculated plastic loads are assessed in comparison with experimental results from the literature. Twice elastic slope and plastic work criteria 15 09 2006 08 11 2006 17 01 2008 elasticity plastic deformation pressure vessels work...

... . Kim , M. , and Pan , J. , 1994 , “ Effects of Non-Singular Stresses on Crack-Tip Fields for Pressure-Sensitive Materials, Part I: Plane Strain Case ,” Int. J. Fract. 0376-9429 , 68 , pp. 1 – 34 . 21 12 2005 15 08 2006 cracks plastics stress analysis work...

... fatigue crazing stainless steel crack arrest shot peening weld residual stress fission reactor cooling fission reactor materials crazing fatigue cracks thermal stress cracking internal stresses shot peening welds compressibility fatigue testing work hardening stainless steel...

... of the autofrettage pressure, compressive reyielding, also called reverse yielding, may now occur at the bore of the cylinder. Bauschinger effect internal stresses yield strength work hardening finite element analysis 2006 American Society of Mechanical Engineers ...

... No. ARCCB-MR-88034. Avitzur , B. , 1989 , “ Autofrettage–Stress Distribution Under Load and Retained Stresses After Depressurization ,” Benét Laboratories Technical Report No. ARCCB-TR-89019. Bland , D. R. , 1956 , “ Elastoplastic Thick-Walled Tubes of Work-Hardening Material Subject...

... Bauschinger effect pipes wear work hardening internal stresses yield stress autofrettage residual stress distribution Bauschinger effect yield criterion The autofrettage process is a practical method for increasing the elastic-carrying capacity and the fatigue life of a thick-walled tube...

... , “ Strain Measures for Fatigue Assessment Using Elastic-Plastic FEA ,” ASME PVP Conference , July, Denver , PVP2005–71547. 08 08 2005 10 10 2005 pressure vessels fatigue kinematics work hardening plasticity shapes (structures) Coffin ( 1 ) and Dowling et al. ( 2...