A METHOD FOR PREDICTING THE TRANSVERSE DISTRIBUTION OF RESIDUAL STRESS IN COLD ROLLING OF THIN STRIP USING ELASTIC-PLASTIC THEORY

1993 ◽  
pp. 869-874 ◽  
Author(s):  
Y.L. Liu ◽  
J.C. Lian
Keyword(s):  
Residual Stress ◽  
Cold Rolling ◽  
Thin Strip ◽  
Transverse Distribution ◽  
Elastic Plastic ◽  
Plastic Theory

The Residual Stress Research of Rolling Slab Based on the No-Linear Elastic and Plastic Analysis

2011 ◽  
Vol 311-313 ◽  
pp. 1093-1096
Author(s):  
Zhao Wei Dong ◽  
Xiao Hang Wan ◽  
Shu Jun Li ◽  
Sheng Yong Liu
Keyword(s):  
Residual Stress ◽  
Surface Layer ◽  
Cold Rolling ◽  
Tension Stress ◽  
Nonlinear Method ◽  
Elastic Plastic ◽  
Linear Elastic ◽  
Residual Tension ◽  
Plastic Analysis ◽  
Pressure Stress

The cold rolling of slab is analyzed by using elastic-plastic and heat-mechanic coupling FEM with the nonlinear method. The distribution of residual stress was analyzed mainly in this paper. It is indicated by the results that the residual stress in surface layer of slab material is the pressure stress and inside the plate is the tension stress under the smaller press quantity, the residual stress in surface layer is the tension stress and inside the slab is the pressure stress under bigger press quantity, the maximum residual tension stress in the slab becomes bigger with the increment of the reduction.

Analysis of Plastic-Zone Radius Influenced by Mechanical Parameters in Tunnel Excavation and Support

2012 ◽  
Vol 238 ◽  
pp. 787-790
Author(s):  
Zhong Ming Su ◽  
Rui Liu
Keyword(s):  
Plastic Zone ◽  
Axial Force ◽  
Analytical Formula ◽  
Mechanical Parameters ◽  
Circular Tunnel ◽  
Tunnel Excavation ◽  
Dynamic Design ◽  
Elastic Plastic ◽  
Zone Radius ◽  
Plastic Theory

According to the elastic-plastic theory, the analytical formula of plastic zone radius is established for circular tunnel in its excavation and support, and the effect of anchor support is verified based on the radius of plastic zone from the perspective of measured axial force. The influences to plastic zone by the variations of mechanical parameters and resistance of support are quantitatively analyzed. The result is of great significance to the monitoring measurement and the dynamic design and construction of tunnel.

The Finite Element Analysis of Plate's Distance on Push-Extend Multi-under-Reamed Pile

2012 ◽  
Vol 468-471 ◽  
pp. 2517-2520 ◽  
Author(s):  
Xin Ying Xie ◽  
Xin Sheng Yin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Element Analysis ◽  
Elastic Plastic ◽  
The Finite Element Analysis ◽  
Plastic Theory

In this paper ,it analyses the push-extend multi-under-reamed pile in use of elastic-plastic theory by the software ANSYS.It takes four push-extend multi-under-reamed piles which are the same except plates' distance.It introduces the realative theory to make the anlysis much more accuracy.The results which is taken by ANSYS are researched to find out the regularity and can certain the reasonable plate's distance to anlyze the bearing capacity of push-extend multi-under-reamed pile at the same time.

Analysis of Leveling Strategy for a Plate Mill

2010 ◽  
Vol 145 ◽  
pp. 424-428 ◽  
Author(s):  
Li Cui ◽  
Xian Lei Hu ◽  
Xiang Hua Liu
Keyword(s):  
Residual Stress ◽  
Plastic Deformation ◽  
Time Delay ◽  
Static Pressure ◽  
High Strength ◽  
Plate Mill ◽  
Elastic Plastic ◽  
Residual Curvature ◽  
Deformation Ratio

In order to analysis the effect of leveling strategy on the quality of plate products, the curvature integration by elastic-plastic differences was adopted to simulate leveling results by different leveling strategy. It had studied plastic deformation ratio, residual stress, residual curvature and leveling force for different leveling strategies to find the effectual strategy and the adaptability conditions were given. Additionally, static pressure leveling with the time delay strategy was analyzed, which was proved to be an effectual strategy to resolve the leveling problem for high strength thicker plate by a certain 3500mm mill plate.

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