Results 71 to 80 of about 15,370 (205)

Course on fatigue and fracture mechanics : influence of residual stresses and post-welding improvement methods [PDF]

open access: yes, 2001
Sumário da Lição, apresentada para Provas de Agregação em Engenharia Civil, especialidade de Mecânica das Estruturas e dos Materiais, da Faculdade de Ciências e Tecnologia da Universidade de ...
Nussbaumer, Alain
core   +1 more source

LCF Life of NiCr-Y Coated Disk Alloys After Shot Peening, Oxidation and Hot Corrosion [PDF]

open access: yes
In a prior companion study (Ref. 1), three different Ni-Cr coating compositions (29, 35.5, 45 wt% Cr) were applied at two thicknesses by Plasma Enhanced Magnetron Sputtering (PEMS) to two similar Ni-based disk alloys.
Draper, Susan L.   +5 more
core   +1 more source

Experimental and numerical investigation into effect of elevated temperature on fretting fatigue behavior [PDF]

open access: yes, 2011
Fretting fatigue damage occurs in contacting parts when they are subjected to fluctuating loadings and sliding movements at the same time. This phenomenon may occur in many applications such as bearings/ shafts, bolted and riveted connections, steel ...
Abdel Wahab, Magd   +3 more
core  

Laser Peening and Shot Peening Effects on Fatigue Life and Surface Roughness of Friction Stir Welded 7075-T7351 Aluminum [PDF]

open access: yes
The effects of laser peening, shot peening, and a combination of both on the fatigue life of Friction Stir Welds (FSW) was investigated. The fatigue samples consisted of dog bone specimens and the loading was applied in a direction perpendicular to the ...
Forman, Royce   +2 more
core   +1 more source

Fatigue Life of a NiCr-Coated Powder Metallurgy Disk Superalloy After Varied Processing and Exposures [PDF]

open access: yes
A protective ductile NiCr coating has shown promise to mitigate oxidation and corrosion attack on superalloy disk alloys. The effects of this coating on fatigue life and failure modes of the disk superalloy are an important concern. The objective of this
Draper, Susan   +7 more
core   +1 more source

NASA transmission research and its probable effects on helicopter transmission design [PDF]

open access: yes
Transmissions studied for application to helicopters in addition to the more conventional geared transmissions include hybrid (traction/gear), bearingless planetary, and split torque transmissions. Research is being performed to establish the validity of
Coy, J. J.   +2 more
core   +1 more source

Mechanical surface treatments to optimize the fatigue behavior of quenched and tempered high strength steels [PDF]

open access: yes, 2018
Belzunce Varela, Francisco Javier   +2 more
core   +2 more sources

Comparing the TiOblast and Osseospeed surfaces. Histomorphometric and histological analysis in humans [PDF]

open access: yes, 2008
The aim of the present study was to compare two implant surfaces, the TiOblast (Astra Tech) surface, manufactured by blasting the surface and already present in literature and the Osseospeed (Astra Tech) surface, manufactured by blasting and treating the
Albrektsson, T.   +5 more
core   +2 more sources

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