Results 121 to 130 of about 198 (159)

Void Coalescence With and Without Prestrain History

International Journal of Damage Mechanics, 2009
In this study, void coalescence with and without a plastic prestrain history is studied using stress-controlled axisymmetric unit cell models. In addition to spherical voids, both oblate and prolate voids are considered. In the case with prestrain history a uniaxial prestrain up to 10% was applied and the material is thereafter subjected to loadings ...
Z.L. Zhang, B. Skallerud
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Subultimate Prestrain and Aging in Mild Steel

Journal of Basic Engineering, 1965
Room-temperature tensile straining of mild steel followed by aging at 350 F causes return of the upper yield and a raising of the stress-strain curve. Tensile tests on a special rimmed steel of low Mn/C ratio show not only the expected raising of the stress-strain curve, but raising by an additional amount when several small increments of strain are ...
D. K. Felbeck, W. G. Gibbons, W. G. Ovens   +2 more
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Propagation of axisymmetric longitudinal waves in a finitely prestrained circular cylinder imbedded in a finitely prestrained infinite elastic body

Mechanics of Composite Materials, 2008
Within the framework of a piecewise homogeneous body model and with the use of the three-dimensional linearized theory of elastic waves in initially stressed bodies (TLTEWISB), the propagation of axisymmetric longitudinal waves in a finitely prestrained circular cylinder (fiber) imbedded in a finitely prestrained infinite elastic body (matrix) is ...
GULIEV, M. S., AKBAROV, SURKHAY
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Diffusion of incremental loads in prestrained bars

Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1992
Abstract Axial diffusion of perturbed fields generated by concentrated traction rates applied to the surface of a prestrained bar are examined within the framework of finite strain theory. The analysis centres on a plane-strain compatibility equation for a stress rate potential.
Durban, D., Stronge, W. J.
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ET for Tensile Prestrained Tubular Struts

Journal of Structural Engineering, 1986
Strain reversal in the inelastic range may cause a dramatic drop in the tangent modulus for mild steel struts. Other material properties also affect the tangent modulus. Consequently the influence of several of these properties is examined for an electric‐resistance welded steel tube. The variables chosen are: (1) Strain hardening caused by varying the
Lewis C. Schmidt, Peter R. Morgan
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Prestrain process of Arall

1984
Aerospace ...
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A comparative fracture study of a slightly prestrained low alloy steel and a slightly prestrained austenitic stainless steel

Materials Science and Engineering, 1986
Abstract The effect of slight prestraining on the fracture toughness (as expressed by the J integral) of a low alloy steel and an austenitic stainless steel has been studied. Fracture toughness tests were performed on AISI 4340 steel and AISI 310 steel, prestrained from 0% (annealed) to 15%. The dislocation structure and distribution were examined on
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Exhaustion of extensional ductility by torsional prestrain

International Journal of Mechanical Sciences, 1966
Abstract Cylindrical bars made of low-carbon steel designated as DIN St.37 were subjected to various amounts of torsion. The pretwisted bars were then sliced longitudinally and tested in pure tension up to fracture. The combination of a torsion-tension test was sufficient to initiate low-strain statie fractures provided that the twisting angle ...
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Yield surfaces in prestrained aluminum and copper

Metallurgical Transactions, 1971
The analysis of strain-hardening materials subjected to multiaxial states of stress requires more detailed experimental information about the effects of previous plastic deformation on the yield surfaces of real materials than is presently available.
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The role of prestraining on mechanical properties and microstructure of preaged AA 6016 Al-Mg-Si sheets

Journal of Alloys and Compounds, 2023
Saif Haider Kayani, Min Cui, Je-Hyun Lee   +2 more
exaly