Up-hill diffusion in contact stress field in small particles under pressure

1991 ◽  
Vol 25 (2) ◽  
pp. 413-417 ◽  
Author(s):  
M.Yu. Tanakov ◽  
L.I. Trusov ◽  
B.Ya. Ljubov
Keyword(s):  
Stress Field ◽  
Contact Stress ◽  
Small Particles

Stress Field in Rolls under Load – Measurement and FEM Calculations

2014 ◽  
Vol 622-623 ◽  
pp. 1015-1022 ◽  
Author(s):  
Christian Zybill ◽  
Erich Schubrikoff ◽  
Vyacheslav Goryany ◽  
Michael Hinnemann ◽  
Johannes Buch
Keyword(s):  
Heat Transfer ◽  
Residual Stress ◽  
Thermal Stress ◽  
Stress Field ◽  
Stress Analysis ◽  
Contact Stress ◽  
Load Measurement ◽  
Stress Components ◽  
3D Representation

A stress analysis for cast compound rolls is presented. Stress is divided into components as residual stress, stress implied by load, stress implied by torque, Hertz’ian contact stress and thermal stress. Furthermore, heat transfer is considered. Residual stress is measured and a 3D representation is given. All further stress components are calculated by FEM calculations. The data allow a complete description of the roll behavior in operation.

305 Analysis of the Contact Stress Field to Clarify the Damage Mechanism on the Railway Wheel Tread

2008 ◽  
Vol 2008.46 (0) ◽  
pp. 91-92
Author(s):  
Ryota KONO ◽  
Hiroyuki AKEBONO ◽  
Masahiko KATO ◽  
Atsushi SUGETA
Keyword(s):  
Stress Field ◽  
Contact Stress ◽  
Damage Mechanism ◽  
Railway Wheel

scholarly journals Skin-like tactile sensor arrays for contact stress field extraction

1993 ◽  
Vol 1 (1) ◽  
pp. 23-36 ◽  
Author(s):  
D. De Rossi ◽  
G. Canepa ◽  
G. Magenes ◽  
F. Germagnoli ◽  
A. Caiti ◽  
...  
Keyword(s):  
Stress Field ◽  
Contact Stress ◽  
Sensor Arrays ◽  
Tactile Sensor

Huber-Mises-Hencky Equivalent Stress: A Surface Failure Indicator

2005 ◽  
Author(s):  
Luminita Irimescu ◽  
Emanuel Diaconescu ◽  
Yves Berthier
Keyword(s):  
Stress Field ◽  
Contact Stress ◽  
Equivalent Stress ◽  
Rolling Motion ◽  
Elastic Contact ◽  
Sliding Contacts ◽  
Surface Degradation ◽  
Surface Failure ◽  
Cause Of Failure ◽  
Good Agreement

The microslip phenomenon takes place in both rolling and sliding contacts. In the latter case it occurs in fretting, when the main cause of failure is surface degradation. Both cases are experimentally investigated in order to visualise microslip initiation. The position of the first obtained microslip marks is in good agreement with positions of maximum Huber-Mises-Hencky stress. These results associate the micro-slip initiation with contact stress field and proves the ability of Huber-Mises-Hencky stress to assess the occurrence of failure at the interface of an elastic contact in sliding or rolling motion.

Thermal-Mechanical Coupling Analysis of Power Spilt Device Gear Train

2013 ◽  
Vol 448-453 ◽  
pp. 3115-3118 ◽  
Author(s):  
Wang Hao Shen ◽  
Long Kong ◽  
Zhong Da Wang ◽  
Chao Xu ◽  
Ji Xin Wang
Keyword(s):  
Temperature Field ◽  
Stress Field ◽  
Surface Temperature ◽  
Contact Stress ◽  
Hybrid Electric Vehicle ◽  
Gear Train ◽  
Tooth Surface ◽  
Coupling Analysis ◽  
Mechanical Coupling ◽  
Power Component

Power Spilt Device (PSD) is the key power component of Hybrid Electric Vehicle (HEV). It is very important to simulate and analyze the temperature field and stress field of PSD gear train. The thermal-mechanical coupling analysis is difficult, as it involves the interaction between temperature field and stress field. This paper presents the process of the thermal-mechanical coupling simulation in ABAQUS, and tooth surface temperature and contact stress are obtained and analyzed.

Sliding Contact Stress Field Due to a Spherical Indenter on a Layered Elastic Half-Space

1988 ◽  
Vol 110 (2) ◽  
pp. 235-240 ◽  
Author(s):  
T. C. O’Sullivan ◽  
R. B. King
Keyword(s):  
Friction Coefficient ◽  
Stress Field ◽  
Contact Problem ◽  
Half Space ◽  
Contact Stress ◽  
Single Layer ◽  
Elastic Half Space ◽  
Spherical Indenter ◽  
Sliding Contact ◽  
Iterative Approach

The quasi-static sliding contact stress field due to a spherical indenter on an elastic half-space with a single layer is studied. The contact problem is solved using a least-squares iterative approach and the stress field in the layer and substrate is determined using the Papkovich-Neuber potentials. The resulting stresses are discussed for different values of the layer stiffness relative to the substrate and also for different values of the friction coefficient.

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