... constitutive models to finite deformation elastoplasticity. In order to model the elastic behavior, a Hookean-type constitutive equation based on the logarithmic strain is considered. Based on this constitutive equation and assuming the deformation theory of Hencky as well as the yield criteria of von Mises...

...: Elastic-perfectly plastic. 19 04 2011 22 08 2011 19 01 2012 19 01 2012 elastoplasticity plastic deformation structural engineering Limit load of a structure represents the load at the onset of unconstrained plastic flow, and determination of the load is part...

... ( r i ) is the corresponding shear plastic strain increment, and d p ¯ ( r i ) represents the equivalent plastic strain increment. 09 01 2010 06 07 2011 06 07 2011 02 12 2011 02 12 2011 clamps elastoplasticity elongation fasteners...

..., showing that the difference between the two solutions is negligible as the ratio of crack length to the plate width is less than 0.25. However, the difference may become significant when the ratio approaches one. bending cracks elastoplasticity finite element analysis plates (structures) tensile...

... 31 10 2011 elastoplasticity finite element analysis heat exchangers mechanical contact shrinkage stainless steel thermal analysis welding Shell-tube heat exchangers are widely used in the process industries and the tube-to-tubesheet joint is a critical element of these heat...

...David W. Nicholson; Thomas W. Silvers In finite element analysis of pressure vessels undergoing elastoplastic deformation, low stiffness of the tangent modulus tensor will engender low stiffness in the tangent stiffness matrix, posing a risk of computational difficulties such as poor convergence...

..., supported by elastoplastic finite element analyses, is used. Several variable amplitude loadings were selected and analyzed, using alternative configurations of kinematic hardening plasticity models (e.g., Chaboche’s model with distinct constants superposition). The predictions are assessed using available...

... is obtained for the hot-tap connections, then a design load is given by P = 2 3 P L where P is design pressure (MPa) and P L is limit pressure (MPa). 08 03 2010 15 12 2010 14 07 2011 14 07 2011 elastoplasticity finite element analysis...

... assumptions made in the elastic analysis are valid for this configuration. 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 sheet design...

... materials, respectively. curve fitting elastoplasticity heat exchangers pipes reliability stress-strain relations tube-to-tubesheet joint initial clearance material strain hardening expanding pressure analytical model finite element analysis The tube-to-tubesheet joint...

... fracture elastoplasticity fracture toughness numerical analysis pipelines pipes steel stress-strain relations tensile strength welding yield stress welded joint undermatched joint strength heterogeneity dynamic loading strength deformation ductile fracture brittle fracture ductile...

...Eduard Marenić; Ivica Skozrit; Zdenko Tonković In the present paper, calculations of the stress intensity factor (SIF) in the linear-elastic range and the J -integral in the elastoplastic domain of cracked structural components are performed by using the shell-to-solid submodeling technique...

... 07 2010 cracks elastoplasticity fracture mechanics fracture toughness fracture 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...

.... The results show that the proposed equation resulting from the parametric analysis can be employed to predict the static burst pressure of cylindrical shell intersections for a wide range of geometric ratios. 14 07 2009 21 11 2009 04 05 2010 04 05 2010 elastoplasticity finite...

... meaning of the incubation time remains questionable, an incubation time criterion was applied successfully to predict dynamic fracture initiation in brittle solids ( 36 37 ). 25 01 2009 17 11 2009 31 03 2010 31 03 2010 cracks elastoplasticity finite element analysis...

.... 041203 . 10.1115/1.3147983 03 07 2008 28 09 2009 26 01 2010 26 01 2010 elastoplasticity finite element analysis nuclear power stations elastic-plastic cyclic load shakedown residual stress finite element method Nuclear components under cyclic loading...

... in terms of the radial displacement. The mathematical model is based on the idea of solving the elastoplastic autofrettage problem using the form of the elastic solution. Substituting Hooke’s equations into the equilibrium equation and using the strain-displacement relations yield a differential equation...

... -integral FAD approach but can be compared with ease by plotting both approaches in a FAD format. 01 01 2009 13 05 2009 15 12 2009 15 12 2009 elastoplasticity failure analysis finite element analysis fracture mechanics yield strength There are several structural...

... to conservatively estimate the limit load comparing to the results obtained from NFEA. 22 05 2009 02 09 2009 10 11 2009 10 11 2009 elasticity elastoplasticity finite element analysis notch strength shapes (structures) stress-strain relations notch stress-strain conversion...

... 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...