scholarly journals INCREMENTAL STRAIN-CONTROLLED STRATEGY FOR NUMERICAL ANALYSIS OF ELASTIC-PLASTIC STRUCTURE

2002 ◽  
Vol 67 (554) ◽  
pp. 79-85 ◽  
Author(s):  
Jun LI ◽  
Kiyotaka MORISAKO
Keyword(s):  
Numerical Analysis ◽  
Elastic Plastic ◽  
Plastic Structure ◽  
Incremental Strain

scholarly journals A numerical analysis of the elastic-plastic peel test

2006 ◽  
Vol 73 (16) ◽  
pp. 2324-2335 ◽  
Author(s):  
H. Hadavinia ◽  
L. Kawashita ◽  
A.J. Kinloch ◽  
D.R. Moore ◽  
J.G. Williams
Keyword(s):  
Numerical Analysis ◽  
Peel Test ◽  
Elastic Plastic

Numerical Analysis of Elastic-Plastic Deformation Evolution and Fracture Behavior in Tensile Process of Laser Lap Welded 301L Joints

2018 ◽  
Vol 45 (12) ◽  
pp. 1202003
Author(s):  
郭相忠 Guo Xiangzhong ◽  
刘伟 Liu Wei ◽  
王昌坤 Wang Changkun ◽  
刘慧玉 Liu Huiyu ◽  
范佳斐 Fan Jiafei
Keyword(s):  
Plastic Deformation ◽  
Numerical Analysis ◽  
Fracture Behavior ◽  
Elastic Plastic ◽  
Tensile Process

Computation of Ratchet Limits for Structures Subjected to Cyclic Loading and Temperature

2002 ◽  
Author(s):  
A. R. S. Ponter ◽  
H. Chen ◽  
M. Habibullah
Keyword(s):  
Finite Element ◽  
Cyclic Loading ◽  
Mechanical Loading ◽  
Limit Theorems ◽  
Thermal Loading ◽  
Loading History ◽  
Cyclic Thermal Loading ◽  
Elastic Plastic ◽  
Plastic Structure ◽  
Shakedown Limit

The paper discusses methods of evaluating the ratchet limit for an elastic/plastic structure subjected to cyclic thermal and mechanical loading. A recently developed minimization theorems by Ponter and Chen [2] provides a generalization of the shakedown limit theorems for histories of load in excess of shakedown. This allows the development of programming methods that locate the ratchet boundary in excess of shakedown. Examples of applications are provided including the performance of a cracked body subjected to cyclic thermal loading. Finally, the theory is used to discuss Kalnins’ [4] proposal that short cut finite element solutions may be used to assess whether a particular loading history lies within a ratchet limit.

The interaction of an underwater explosion bubble and an elastic–plastic structure

2008 ◽  
Vol 30 (3) ◽  
pp. 159-171 ◽  
Author(s):  
A.M. Zhang ◽  
X.L. Yao ◽  
J. Li
Keyword(s):  
Underwater Explosion ◽  
Elastic Plastic ◽  
Plastic Structure

scholarly journals Elastic-Plastic Numerical Analysis of Tunnel Stability Based on the Closest Point Projection Method Considering the Effect of Water Pressure

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Zhan-ping Song ◽  
Ten-tian Yang ◽  
An-nan Jiang
Keyword(s):  
Rock Mass ◽  
Numerical Analysis ◽  
Pore Water ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Surrounding Rock ◽  
Tunnel Stability ◽  
Elastic Plastic ◽  
Closest Point Projection ◽  
Point Projection

To study the tunnel stability at various static water pressures and determine the mechanical properties and deformation behavior of surrounding rock, a modified effective stress formula was introduced into a numerical integration algorithm of elastic-plastic constitutive equation, that is, closest point projection method (CPPM). Taking the effects of water pressure and seepage into account, a CPPM-based formula was derived and a CPPM algorithm based on Drucker-Prager yield criterion considering the effect of pore water pressure was provided. On this basis, a CPPM-based elastic-plastic numerical analysis program considering pore water pressure was developed, which can be applied in the engineering of tunnels and other underground structures. The algorithm can accurately take the effects of groundwater on stability of surrounding rock mass into account and it can show the more pronounced effect of pore water pressure on stress, deformation, and the plastic zone in a tunnel. The stability of water flooding in Fusong tunnel was systematically analyzed using the developed program. The analysis results showed that the existence of groundwater seepage under tunnel construction will give rise to stress redistribution in the surrounding rock mass. Pore water pressure has a significant effect on the surrounding rock mass.

scholarly journals A Numerical Analysis of Selected Elastic-Plastic Fracture Parameters for DEN(T) Plates under Plane Strain Conditions

2017 ◽  
Vol 22 (1) ◽  
pp. 49-80 ◽  
Author(s):  
M. Graba
Keyword(s):  
Numerical Analysis ◽  
Fracture Mechanics ◽  
Plane Strain ◽  
Plastic Material ◽  
Crack Tip ◽  
Limit Load ◽  
Material Model ◽  
Crack Tip Opening Displacement ◽  
Opening Displacement ◽  
Elastic Plastic

Abstract This paper provides a numerical analysis of selected parameters of fracture mechanics for double-edge notched specimens in tension, DEN(T), under plane strain conditions. The analysis was performed using the elastic-plastic material model. The study involved determining the stress distribution near the crack tip for both small and large deformations. The limit load solution was verified. The J-integral, the crack tip opening displacement, and the load line displacement were determined using the numerical method to propose the new hybrid solutions for calculating these parameters. The investigations also aimed to identify the influence of the plate geometry and the material characteristics on the parameters under consideration. This paper is a continuation of the author’s previous studies and simulations in the field of elastic-plastic fracture mechanics [4, 6, 16, 17, 31].

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