Fatigue gage utilizing surface roughening of aluminum foil
Article Abstract:
Application of the phenomenon of surface roughening of an aluminum foil enables the determination of stress under continuously varying stress amplitudes. The continuously varying amplitudes abolish the influence of load history on surface roughness, while infrequent variations in the stress amplitude reinstates the influence of load history. In the absence of load history effects the surface roughness yields the average stress amplitude value.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1995
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On the decrease of fatigue limit due to small prestrain
Article Abstract:
The effects of prestrain on the fatigue behavior of low carbon steel are studied through experimental tests. Pre-strained and strain-aged annealed round rods of carbon steel are subjected to rotating bending tests. The slipband and crack propagation life of a small surface crack in the rods are then examined. Results indicate that small prestrain reduces the fatigue life and increases the crack and slip band initiation of the rods.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1992
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Modeling the influence of material structure on deformation induced surface roughening in AA7050 thick plate
Article Abstract:
A report on the study of development of deformation induced surface roughening in AA7050 thick plate using electron backscatter diffraction experiments is presented.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2007
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