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Details

AD632454

Publication Date	1966
Personal Author	Forman, R. G.
Page Count	34
Abstract	By using the Dugdale model for a crack in a plate, an improved formula was derived for the strain energy release rate, G. The formula has the same form as the solution for a linear elastic plate, except a correction factor is used which corrects for both the effect of yielding and the finite width of the plate. Curves are presented giving the values of the correction factor, and they indicate that the nominal stress to yield stress ratio has a pronounced effect on the strain energy release rate. (Author)
Keywords	Fracture(Mechanics) Metal plates Corrections Deformation Stresses Strain(Mechanics)
NTIS Subject Category	46E - Structural Mechanics
Corporate Authors	Air Force Flight Dynamics Lab Wright-Patterson Afb Ohio
Document Type	Technical Report
Title Note	Final rept. Dec 64-Jul 65.
NTIS Issue Number	196612

The Effect of Plastic Deformation on the Strain Energy Release Rate in a Centrally Notched Plate Subjected to Uniaxial Tension.

The Effect of Plastic Deformation on the Strain Energy Release Rate in a Centrally Notched Plate Subjected to Uniaxial Tension.
AD632454

Publication Date	1966
Personal Author	Forman, R. G.
Page Count	34
Abstract	By using the Dugdale model for a crack in a plate, an improved formula was derived for the strain energy release rate, G. The formula has the same form as the solution for a linear elastic plate, except a correction factor is used which corrects for both the effect of yielding and the finite width of the plate. Curves are presented giving the values of the correction factor, and they indicate that the nominal stress to yield stress ratio has a pronounced effect on the strain energy release rate. (Author)
Keywords	Fracture(Mechanics) Metal plates Corrections Deformation Stresses Strain(Mechanics)
NTIS Subject Category	46E - Structural Mechanics
Corporate Authors	Air Force Flight Dynamics Lab Wright-Patterson Afb Ohio
Document Type	Technical Report
Title Note	Final rept. Dec 64-Jul 65.
NTIS Issue Number	196612