Results 271 to 280 of about 3,932,887 (344)

Necking and fracture limit analyses of different pre-strained sheet materials in polar effective plastic strain locus using Yld2000-2d yield model

Journal of Materials Processing Technology, 2019
This paper aims to estimate and analyze both the necking and fracture based path-independent forming limit criteria during two-stage forming of anisotropic sheet materials.
S. Basak, S. Panda
semanticscholar   +1 more source

Fracture Patterns and Strain Information in Thoracolumbar Burst Fractures

Advances in Bioengineering, 2000
Abstract A combined loading of axial compression and anterior shear on a spinal motion segment causes the severe form of burst fracture. Thoracolumbar motion segments were instrumented with a strain gage on the middle of the anterior wall and one near the base of the pedicles. Two samples were subjected to high-speed axial compression in
Noshir A. Langrana, Robert D. Harten, David C. Lin, Mitchell F. Reiter, Casey K. Lee   +4 more
openaire   +1 more source

The plane strain fracture of polysulfone

Engineering Fracture Mechanics, 1974
Abstract It is shown using photoelastic techniques that the concepts of fracture mechanics apply to the plain strain fracture of isotropic polysulfone, a ductile glassy polymer. This forms a yielded zone, consisting of crazes, ahead of the crack, that can be described by the Dugdale model.
R.D.R. Gales, N.J. Mills
openaire   +1 more source

Plane strain fracture in poroelastic media

Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1991
The effect of fully coupled poroelasticity on an impulsively loaded crack in plane strain is investigated. A formally exact solution for a semi-infinite crack in a linear, isotropic, poroelastic medium with a prescribed internal stress is considered; the solution is obtained using Laplace and Fourier transforms in time and space ...
Atkinson, C., Craster, R. V.
openaire   +1 more source

On predicting mode II fracture toughness (KIIc) of hot mix asphalt mixtures using the strain energy density criterion

Theoretical and applied fracture mechanics (Print), 2019
Mode II or in-plane sliding of crack faces is one of the possible fracture modes for asphalt pavements which can often take place due to traffic loads passing over the crack at low temperature conditions.
M. Aliha
semanticscholar   +1 more source

Plane strain fracture toughness

1982
The test procedure for plane strain fracture toughness testing is standardized [1, 2] by the American Society for Testing and Materials, ASTM. At first glance, it seems strange that a standard test is necessary. The versatility of the K concept implies that any cracked specimen for which K can be calculated is suitable.
openaire   +1 more source

Kink bands promote exceptional fracture resistance in a NbTaTiHf refractory medium-entropy alloy

Science
Single-phase body-centered cubic (bcc) refractory medium- or high-entropy alloys can retain compressive strength at elevated temperatures but suffer from extremely low tensile ductility and fracture toughness.
David H. Cook, Punit Kumar, Madelyn I. Payne, Calvin H. Belcher, P. Borges, Wenqing Wang, Flynn Walsh, Zehao Li, Arun Devaraj, Mingwei Zhang, M. Asta, A. M. Minor, E. Lavernia, D. Apelian, R. Ritchie   +14 more
semanticscholar   +1 more source

The strain rate dependency of fracture in polyethylene: Fracture initiation

Journal of Applied Polymer Science, 1989
AbstractThe dependency of fracture on the rate of strain of a range of polyethylene samples was measured in three point flexural tests at 23°C. The range of strain rates from 10−1 to 10−7 reciprocal seconds was examined. The J integrals at the initiation of the cracks were determined.
D. B. Barry, O. Delatycki
openaire   +1 more source

A Simple Methodology to Determine Fracture Strain of Press-Hardened Steels Under Plane Strain Bending

Metallurgical and Materials Transactions. A, 2021
H. Cai, J. F. Wang, WU D., YI H.L.
semanticscholar   +1 more source

Instability of Plastic Strain and Fracture. Strain Diagram for Inhomogeneous Media

Journal of Applied Mechanics and Technical Physics, 2000
A strain diagram for a locally inhomogeneous medium (a medium with a porous structure or a system with noncut particles) is constructed on the basis of the Cosserat nonlinear pseudocontinuum model. A modified criterion of geometrical softening is considered that makes it possible to establish the dependence of the moment of stability loss on the ...
openaire   +2 more sources