Determination of the urethral stress profile with the aid of perfused catheters

1983 ◽  
Vol 234 (1) ◽  
pp. 67-73
Author(s):  
W. Groß ◽  
B. Festge ◽  
O. -A. Festge ◽  
K. Hajdu ◽  
K. -D. Rosenbaum
Keyword(s):  
Stress Profile ◽  
Perfused Catheters

Residual Stresses and Differential Deformation of Electroplated Structures

1989 ◽  
Vol 33 ◽  
pp. 161-169
Author(s):  
G. Sheikh ◽  
I. C. Noyan
Keyword(s):  
Residual Stresses ◽  
Lattice Parameter ◽  
Stress Profile ◽  
X Ray ◽  
Residual Stress Profile ◽  
Cyclic Loading And Unloading ◽  
Nickel Substrates ◽  
Loading And Unloading

AbstractWe report the results of a recent study where nickel substrates electroplated with chromium were loaded in-situ on an x-ray diffractometer. This technique allows determination of lattice spacings in the vicinity of the interface for both the film and the substrate as a function of the applied load. We used such lattice parameter data, SEM observations of the surface and x-ray peak breadth data to study the partitioning of deformation between the film and the substrate. The data indicates progressive loss of adhesion between the film and the substrate with increasing deformation. We observe significant effect of electroplating residual stresses on the mechanical behavior of the system. The loss of adhesion between the film and the substrate coupled with the initial residual stress profile causes an apparent 'negative Poisson's ratio' for the film during initial stages of the loading. This effect disappears with cyclic loading and unloading.

scholarly journals Determination of Stress Profiles in Expanded Austenite by Combining Successive Layer Removal and GI-XRD

2014 ◽  
Vol 996 ◽  
pp. 155-161 ◽  
Author(s):  
Frederico Augusto Pires Fernandes ◽  
Thomas L. Christiansen ◽  
Marcel A.J. Somers
Keyword(s):  
Lattice Parameter ◽  
Free Lattice ◽  
Stress Profile ◽  
Residual Stress Profile ◽  
Successive Layer ◽  
Stress Profiles ◽  
Expanded Austenite ◽  
Successive Removal ◽  
Good Agreement

The present work deals with the evaluation of the residual-stress profile in expanded-austenite by successive removal steps using GI-XRD. Preliminary results indicate stresses of several GPa's from 111 and 200 diffraction lines. These stresses appear largest for the 200 reflection. The strain-free lattice parameter decayed smoothly with depth, while for the compressive stress a maximum value is observed at some depth below the surface. Additionally a good agreement was found between the nitrogen profile determined with GDOES analysis and the strain-free lattice parameter from XRD.

scholarly journals The Application of Acoustic Method for the Determination of Uniaxial Mechanical Stress Profile

2016 ◽  
Vol 0 (6) ◽  
pp. 101-106
Author(s):  
Григорій Семенович Тимчик ◽  
Марина В'ячеславівна Філіппова ◽  
Марія Олександрівна Демченко
Keyword(s):  
Mechanical Stress ◽  
Acoustic Method ◽  
Stress Profile

Neutron Determination of Residual Stress in a Nitrided Notched Part

2005 ◽  
Vol 490-491 ◽  
pp. 251-256 ◽  
Author(s):  
Agnès Fabre ◽  
Laurent Barrallier
Keyword(s):  
Residual Stress ◽  
Fatigue Life ◽  
Thermomechanical Treatment ◽  
Gear Tooth ◽  
Stress Profile ◽  
Residual Stress Profile ◽  
Improve Fatigue

Nitriding is an hardening thermomechanical treatment generally used to improve fatigue life of steel parts, like gear for example. Another effect of this treatment is generating superficial stress, influenced by nitriding conditions, composition of steel and geometry of the part. This work deals with the effect of shape on the residual stress profile obtain after nitriding on a gear tooth. The residual stress profile was determined using neutrons diffraction technique.

Determination of the stress profile in ion implanted garnets

1981 ◽  
Vol 17 (6) ◽  
pp. 2917-2919 ◽  
Author(s):  
J. Kersusan ◽  
P. Gerard ◽  
J. Gailliard ◽  
H. Jouve
Keyword(s):  
Stress Profile ◽  
Ion Implanted
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