UNIFIED YIELD CRITERION AND ELASTOPLASTIC ANALYSIS OF A ROTATING SOLID CYLINDER

2021 ◽  
Vol 62 (5) ◽  
pp. 760-770
Author(s):  
A. N. Prokudin ◽  
A. A. Burenin
Keyword(s):  
Yield Criterion ◽  
Elastoplastic Analysis ◽  
Solid Cylinder

Elastoplastic analysis of a thin-walled tube under cyclic bending and constant internal pressure: A simplified model

2014 ◽  
Vol 229 (4) ◽  
pp. 591-602 ◽  
Author(s):  
Hosein Yazdani ◽  
Ali Nayebi
Keyword(s):  
Internal Pressure ◽  
Yield Criterion ◽  
Kinematic Hardening ◽  
Elastoplastic Analysis ◽  
Simple Method ◽  
Cyclic Bending ◽  
Mapping Algorithm ◽  
Interaction Diagram ◽  
Present Solution ◽  
Thin Walled

In this study, the elastoplastic analysis of thin-walled tubes under cyclic bending and internal pressure is presented. A simple method is presented and verified. In order to predict ratcheting or shakedown behavior in the cyclic loading, von-Mises yield criterion as the yield surface and Chaboche’s nonlinear kinematic hardening model are used. The stress–strain variation is obtained with the help of return mapping algorithm. The present solution is in good agreement with experimental results. Shakedown or ratcheting behavior of the tube under various combinations of applied constant internal pressure and cyclic curvature is considered, Bree’s interaction diagram is obtained and the boundary between shakedown and ratcheting zone is determined.

Discussion on the Use of Parameters of Drucker-Prager Criterion

2006 ◽  
Vol 306-308 ◽  
pp. 1449-1454 ◽  
Author(s):  
Shui Lin Wang ◽  
Yu Yong Jiao ◽  
Haibin Xiao ◽  
Chun Guang Li
Keyword(s):  
Principal Stress ◽  
Yield Criterion ◽  
Elastoplastic Analysis ◽  
Computational Results ◽  
Stress Space ◽  
Engineering Problems ◽  
Principal Stress Space ◽  
Yield Surfaces ◽  
Coulomb Criterion

There are several different yield surfaces of Drucker-Prager yield criterion which corresponds to Mohr-Coulomb yield criterion in principal stress space. The different yield surfaces are determined by parameters in Drucker-Prager criterion. The influence of the different parameters on computational results is discussed in the paper, and the use of the equivalent Drucker-Prager criterion to Mohr-Coulomb criterion is suggested when elastoplastic analysis is performed in engineering problems.

Smoothed Point Interpolation Method for Elastoplastic Analysis

2015 ◽  
Vol 12 (04) ◽  
pp. 1540013 ◽  
Author(s):  
G. Y. Zhang ◽  
Y. Li ◽  
X. X. Gao ◽  
D. Hui ◽  
S. Q. Wang ◽  
...  
Keyword(s):  
Numerical Study ◽  
Interpolation Method ◽  
Yield Criterion ◽  
Elastoplastic Analysis ◽  
Flow Rule ◽  
Dependent Plasticity ◽  
Study Results ◽  
Radial Point Interpolation ◽  
Point Interpolation Method ◽  
Point Interpolation

This work formulates the node-based smoothed radial point interpolation method (NS-RPIM), a typical model of smoothed point interpolation method, for the elastoplastic analysis of two-dimensional solids with gradient-dependent plasticity. The NS-RPIM uses radial point interpolation shape functions for field approximation and node-based gradient smoothing for strain field construction. The formulation is based on the parametric variational principle (PVP) in the form of complementarity with the gradient-dependent plasticity being represented by means of the linearization of the yield criterion and the flow rule. Numerical study results have demonstrated the accuracy and stability of the proposed approach for elastoplastic analysis.

Thermal Stress Analysis of an FGM Cylinder under the Effect of Convection and Radially Varying Temperature Distribution

2009 ◽  
Vol 631-632 ◽  
pp. 23-28 ◽  
Author(s):  
Serra Topal ◽  
Mufit Gulgec
Keyword(s):  
Thermal Energy ◽  
Yield Criterion ◽  
Energy Generation ◽  
Functionally Graded ◽  
Stress And Strain ◽  
Solid Cylinder ◽  
Power Functions ◽  
Realistic Representation ◽  
Strain Components ◽  
Potential Applications

The plane strain problem for a functionally graded solid cylinder with thermal energy generation under the effect of convective heat transfer is considered. In previous studies on FGM cylinders in the literature, the modulus of elasticity, the thermal conductivity and the thermal expansion coefficient are represented by using either exponential or power functions. However, this study considers different functions for these material properties, which results in a more realistic representation of the problem. The stress and strain components are evaluated analytically and their dependencies on the radially varying material parameters are presented at the elastic state. Critical values of the volumetric thermal energy generation evaluated for a homogeneous solid cylinder and for an FGM cylinder are compared by using the Tresca’s Yield Criterion. Numerical results are generated by considering a W/Cu FGM solid cylinder which has potential applications as an International Thermonuclear Experimental Reactor (ITER) component.

Soil/Tire Interaction Analysis Using FEM and FVM

2005 ◽  
Vol 33 (1) ◽  
pp. 38-62 ◽  
Author(s):  
S. Oida ◽  
E. Seta ◽  
H. Heguri ◽  
K. Kato
Keyword(s):  
Large Scale ◽  
Interaction Analysis ◽  
Yield Criterion ◽  
Surrounding Medium ◽  
Flow Analysis ◽  
Measurement Data ◽  
Traction Force ◽  
Elastoplastic Material ◽  
The Road ◽  
Soil Flow

Abstract Vehicles, such as an agricultural tractor, construction vehicle, mobile machinery, and 4-wheel drive vehicle, are often operated on unpaved ground. In many cases, the ground is deformable; therefore, the deformation should be taken into consideration in order to assess the off-the-road performance of a tire. Recent progress in computational mechanics enabled us to simulate the large scale coupling problem, in which the deformation of tire structure and of surrounding medium can be interactively considered. Using this technology, hydroplaning phenomena and tire traction on snow have been predicted. In this paper, the simulation methodology of tire/soil coupling problems is developed for pneumatic tires of arbitrary tread patterns. The Finite Element Method (FEM) and the Finite Volume Method (FVM) are used for structural and for soil-flow analysis, respectively. The soil is modeled as an elastoplastic material with a specified yield criterion and a nonlinear elasticity. The material constants are referred to measurement data, so that the cone penetration resistance and the shear resistance are represented. Finally, the traction force of the tire in a cultivated field is predicted, and a good correlation with experiments is obtained.

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