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The stability of stretching and accelerating plastic sheets. I
Journal of Applied Physics, 1991The equations governing the linearized stability of a perfectly plastic sheet that is isotropically stretching in the horizontal direction and accelerating in the vertical direction are derived. The equations are analyzed for the case where the vertical acceleration is zero.
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On the wrinkling and restabilization of highly stretched sheets
International Journal of Engineering Science, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
T. Wang +4 more
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The deformation and failure of a biaxially stretched sheet
Metallurgical Transactions, 1970Biaxial straining has been done by first producing a uniformly thinned, elongated patch at the center of a much larger metal sheet. The patch was gridded with 100 lines per in, separated from the loading tool with an annular spacer of polyethylene, and then deformed incrementally by stretching the sheet over a large-radius hemispherical punch.
Morris Azrin, Walter A. Backofen
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Brinkman Flow Past a Stretching Sheet
Transport in Porous Media, 2010The problem of steady viscous flow of an incompressible fluid over a flat deformable sheet in a porous medium, when the sheet is stretched in its own plane is revisited. An exact solution is recovered for the two-dimensional case and a totally analytic approximate solution is developed for the axisymmetric case.
V. Kumaran, R. Tamizharasi
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Convective heat transfer at a stretching sheet
Acta Mechanica, 1993Analysis of convection flow and heat transfer of a viscous heat-generating fluid near an infinite vertical stretching surface is carried out. The effects of free convection and the presence of heat generation/absorption on the flow and heat transfer characteristics are considered.
Vajravelu, K., Nayfeh, J.
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Springback in stringer sheet stretch forming
CIRP Annals, 2013Stringer sheets are sheet metal structures stiffened by bifurcations in the cross-section. In order to create spatially curved light-weight structures they may serve as preforms for sheet metal hydroforming. The stiffness of sheets altered by stringers is expected to affect the hydroforming results.
Peter Groche, Frederic Bäcker
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Unsteady flow past a stretching sheet
Mechanics Research Communications, 1996The purpose is to analyze the problem of unsteady flow past a wall which starts impulsively to stretch from rest using both the series expansions and numerical solution methods to predict fluid velocity and skin friction coefficient. It is shown that the series solution in powers of an unsteadiness parameter converges for appreciable large times.
Pop, Ioan, Na, Tsung-Yen
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The stretch-bend forming of sheet metal
Journal of Applied Metalworking, 1981Formability tests simulating stretch-bend conditions have been developed for simple angular and hemispherical contours. The tests were designed to determine the influence of material and geometrical variables on sheet metal formability. Data obtained from the tests have produced families of curves relating the punch radius (R) and sheet thickness (t ...
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Bending and stretching of thin viscous sheets
Journal of Fluid Mechanics, 2001Thin viscous sheets occur frequently in situations ranging from polymer processing to global plate tectonics. Asympotic expansions in the sheet's dimensionless ‘slenderness’ ε [Lt ] 1 are used to derive two coupled equations that describe the deformation of a two-dimensional inertialess sheet with constant viscosity μ and variable thickness ...
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