Experimental Interior Stress Fields of a Constantly Squeezed O-Ring Modeling from Hybrid Transmission Photoelasticity

2016 ◽  
Vol 40 (1) ◽  
pp. 59-72 ◽  
Author(s):  
D.-C. Shin ◽  
J.-H. Nam ◽  
D.-W. Kim
Keyword(s):  
Stress Fields ◽  
Hybrid Transmission ◽  
Interior Stress

scholarly journals Interior-stress fields produced by a general axisymmetric punch

Friction ◽  
2021 ◽  
Author(s):  
Longxiang Yang ◽  
Zhanjiang Wang ◽  
Weiji Liu ◽  
Guocheng Zhang ◽  
Bei Peng
Keyword(s):  
Hankel Transform ◽  
Elastic Half Space ◽  
Stress Fields ◽  
Dual Integral Equations ◽  
Total Load ◽  
Interior Stress ◽  
Von Mises ◽  
Von Mises Stresses ◽  
Relationship Of ◽  
Analytical Expressions

AbstractThis work is a supplement to the work of Sneddon on axisymmetric Boussinesq problem in 1965 in which the distributions of interior-stress fields are derived here for a punch with general profile. A novel set of mathematical procedures is introduced to process the basic elastic solutions (obtained by the method of Hankel transform, which was pioneered by Sneddon) and the solution of the dual integral equations. These processes then enable us to not only derive the general relationship of indentation depth D and total load P that acts on the punch but also explicitly obtain the general analytical expressions of the stress fields beneath the surface of an isotropic elastic half-space. The usually known cases of punch profiles are reconsidered according to the general formulas derived in this study, and the deduced results are verified by comparing them with the classical results. Finally, these general formulas are also applied to evaluate the von Mises stresses for several new punch profiles.

scholarly journals The influence of rounded edges on indentation by a flat punch

1998 ◽  
Vol 212 (4) ◽  
pp. 319-327 ◽  
Author(s):  
M Ciavarella ◽  
D A Hills ◽  
G Monno
Keyword(s):  
Contact Problem ◽  
Frictional Contact ◽  
Flat Surface ◽  
Fatigue Tests ◽  
Stress Fields ◽  
Partial Slip ◽  
Flat Punch ◽  
Present Solution ◽  
Interior Stress ◽  
Von Mises

The contact problem and stress state for indentation by a flat punch with rounded edges is studied. For the contact problem itself analytical solutions are obtained for both surface pressure and interior stress fields. Cases of normal indentation and frictional contact, the latter in both sliding or partial slip conditions, are all treated. The transition from the Hertzian configuration to the contact between a nominally flat pad and contacting flat surface is discussed, and it is found that the strength of the contact decays surprisingly slowly. Regarding the von Mises yield parameter, there is a range of configurations for which the strength is actually higher than the Hertzian one, and the strength decays only when the corner radii are very small. The present solution is therefore a realistic alternative to the classical rigid-flat punch idealization, and has particular application to fretting fatigue tests.

Three-dimensional elastic stress fields near notches in finite thickness plates

2000 ◽  
Vol 37 (51) ◽  
pp. 7617-7632 ◽  
Author(s):  
Zhenhuan Li ◽  
Wanlin Guo ◽  
Zhenbang Kuang
Keyword(s):  
Elastic Stress ◽  
Finite Thickness ◽  
Three Dimensional ◽  
Stress Fields
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