Results 261 to 270 of about 389,170 (298)
Some of the next articles are maybe not open access.
The influence of some rolling parameters on the residual stresses after rolling
Journal of Materials Processing Technology, 1996Abstract A 2D analysis of the deformation process in the rolling gap is presented. Flat strip rolling is considered for a low carbon steel at a temperature of 1000°C. 2D — Finite Element models with a rotating workroll have been installed using the Abaqus/Explicit-Code. The workroll is modelled as a rigid body. The main subject of the analysis is to
W. Razny +4 more
openaire +1 more source
Stress-Strain Analysis of Back-up Roll with Roll-Sleeve
Applied Mechanics and Materials, 2011The back-up roll with roll-sleeve was studied and simulated using the finite element analysis software Abaqus in this paper. The stress-strain field of back-up roll with different roll-sleeve thickness and different magnitude of interference were compared because these two parameters are of importance for us to guide the application of roll with sleeve.
Zhong Ying Zhua, Deng Yue Sun
openaire +1 more source
Measurement of the Interfacial Stresses in Rolling Using the Elastic Deformation of the Roll
Journal of Engineering for Industry, 1987A new method to measure the frictional stresses and normal pressure in the roll gap during cold rolling, and experimental verification of this new method, are presented. The method overcomes many of the shortcomings of pin-type sensors. The elastic deformation of the roll itself is measured with strain gages, and is used to calculate the stresses ...
K. A. Stelson, D. J. Meierhofer
openaire +1 more source
Thermal Stress Evolution of the Roll During Rolling and Idling in Hot Strip Rolling Process
Journal of Thermal Stresses, 2014This study examined a critical idling time for the roll to attain a target temperature prior to rolling the next strip in the hot strip rolling process. Thermoelastic finite element simulations were performed to compute the temperature evolution and resulting thermal stress variations of the roll during rolling and idling.
Doo-Hyun Na +2 more
openaire +1 more source
Thermal stresses in work rolls during the rolling of metal strip
Journal of Materials Processing Technology, 1999Abstract In the strip-rolling process, inadequate work roll cooling often produces high roll temperature and temperature gradients. High thermal stresses resulting from high temperature gradients are responsible for roll surface cracking and spalling.
openaire +1 more source
The Analysis of the Stress and Strain in Skew Rolling
Advanced Materials Research, 2012In this paper, three-dimensional finite-element model for the skew rolling (helical-groove rolling) process has been used to characterize the workpiece material stress,strain and deformation behavior. Particular attention has been paid to representative cross section and the center, edge and mid-radius points of the ...
Hai Bo Yang, Li Jie Zhang, Zheng Huan Hu
openaire +1 more source
Critical stresses in rolling contact fatigue
Wear, 1981Abstract An analysis of the main hypotheses concerning the critical stresses in rolling contact fatigue is presented. It is considered that none of these hypotheses correlates adequately with all the experimental aspects of the phenomenon of rolling contact fatigue.
N.G. Popinceanu, E. Diaconescu, S. Cretu
openaire +1 more source
Contact Stresses in Rolling Bearings
2016The Hertzian pressure (normal stress) in the contact zone between the ball/roller and raceways causes a plastic deformation of the ball/roller contour. In the contact area, the oil-film thickness is nearly constant at the height h c and reduces to the height at h min at the outflow of the contact zone (cf. Chap. 4). The Hertzian pressure p H in the oil
openaire +1 more source
Residual Stresses Induced by Cross-Rolling
Materials Science Forum, 2006Deformation by rolling induces in general a strong crystallographic texture, hence an important material anisotropy. This is a reason why the cross-rolling is sometimes applied in order to symmetrize the crystallographic texture. Such an operation modifies also residual stresses.
Krzysztof Wierzbanowski +6 more
openaire +1 more source
THERMAL STRESS OPTIMIZATION IN METAL ROLLING
Journal of Thermal Stresses, 1997It is known that internal pressure in rolls has an advantageous effect upon the fatigue life of the rolls. To investigate and optimize this effect, transient and steady-state temperature and thermal stress distributions were evaluated in rolls of metal rolling machines heated over the rolling region.
A. Ch. Yiannopoulos +2 more
openaire +1 more source