Results 231 to 240 of about 34,410 (268)

Fracture toughness of snow in shear under friction

Physical Review E, 2002
The fracture toughness of snow in shear is one of the most relevant parameters when studying the mechanics of snow slab avalanche release. Double-cantilever snow beams were loaded asymmetrically to determine K(IIc). If crack surfaces touch under applied pressure, the fracture toughness in shear of snow (rho=247 kg m(-3)) is K(IIc)=680+/-60 Pa m(1/2 ...
H O K, Kirchner, G, Michot, J, Schweizer
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On double shearing in frictional materials

International Journal for Numerical and Analytical Methods in Geomechanics, 2006
AbstractThis paper evaluates the mechanical behaviour of yielding frictional geomaterials. The general Double Shearing model describes this behaviour. Non‐coaxiality of stress and plastic strain increments for plane strain conditions forms an important part of this model. The model is based on a micro‐mechanical and macro‐mechanical formulation.
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Anisotropic Elasticity in Sheared Packings of Frictional Disks

2013
We study the effect of unilaterality of the interparticle interactions on the elastic response of granular materials. The anisotropy of the contact network is related to the opening of contacts during quasi-static shear deformations. As a result, local incremental constitutive relations describing the evolution of stress in terms of shear and ...
Shaebani, Mohammad Reza, Boberski, Jens, Wolf, Dietrich   +2 more
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Shear Strength and Polymer Friction

1974
The friction coefficient of thin polymer sheets under high loads can be accounted for by a simple extension of the adhesion theory of friction in which the pressure dependence of the shear strength of the polymer is taken into consideration. Recent measurements on polypropylene films, as well as earlier data on several other polymers, are used to ...
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Orientation of Shear Bands in Frictional Soils

Journal of Engineering Mechanics, 1991
The elastoplastic MohrCoulomb MC model is shown to overestimate the inclination of shear bands in granular materials.
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Proposed Revisions to Shear-Friction Provisions

PCI Journal, 1978
This paper gave us the basis for the effective shear friction coefficient still used in the PCI Handbook.
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Rheology and shear jamming of frictional ellipses

Journal of Fluid Mechanics, 2018
Understanding and predicting dense granular flows is of importance in geology and industrial applications. Still, most theoretical work has been limited to flows and packings composed of discs or spheres, a narrow subset of all possible packings. To advance our understanding of more realistic flows we here study the granular rheology of ellipses in ...
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Shear Friction and High-Strength Concrete

ACI Structural Journal, 2001
This paper reports a re-appraisal of available shear friction test data and presents simple, modified shear friction equations suitable for use in design. These equations reflect the influence of concrete strength on shear friction strength. They enable full advantage to be taken of the potentially high-shear-friction strengths of very-high-compressive
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Examination of the Effective Coefficient of Friction for Shear Friction Design

PCI Journal, 2016
Kristian Krc, Samantha Wermager, Lesley H. Sneed, Donald Meinheit   +3 more
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Effect of elevated temperatures on the shear-friction behaviour of concrete: Experimental and analytical study

Engineering Structures, 2020
Ajay Chourasia, Subhan Ahmad, Pradeep Bhargava   +2 more
exaly