Results 11 to 20 of about 146,354 (251)
Cohesive Dynamics and Brittle Fracture [PDF]
Journal of Elasticity, 2015 We formulate a nonlocal cohesive model for calculating the deformation state inside a cracking body. In this model a more complete set of physical properties including elastic and softening behavior are assigned to each point in the medium.
Lipton, Robert
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From Brittle to Ductile Fracture in Disordered Materials [PDF]
, 2010 We introduce a lattice model able to describe damage and yielding in heterogeneous materials ranging from brittle to ductile ones. Ductile fracture surfaces, obtained when the system breaks once the strain is completely localized, are shown to correspond
Clara B. Picallo +4 more
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Nonadiabatic Study of Dynamic Electronic Effects during Brittle Fracture of Silicon [PDF]
, 2012 It has long been observed that brittle fracture of materials can lead to emission of high energy electrons and UV photons, but an atomistic description of the origin of such processes has lacked.
Goddard, William A., III +3 more
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Understanding fast macroscale fracture from microcrack post mortem patterns [PDF]
, 2011 Dynamic crack propagation drives catastrophic solid failures. In many amorphous brittle materials, sufficiently fast crack growth involves small-scale, high-frequency microcracking damage localized near the crack tip.
Buehler +11 more
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De-localizing brittle fracture [PDF]
Journal of the Mechanics and Physics of Solids, 2021 Extreme localization of damage in conventional brittle materials is the source of a host of undesirable effects. We show how artificially engineered metamaterials with all brittle constituents can be designed to ensure that every breakable sub-element fails independently.
Umut Salman, Oguz, Truskinovsky, L.
openaire +3 more sources
Elevated-temperature impact toughness of Mg–(Gd, Y)–Zr alloy [PDF]
, 2013 The Charpy impact results for Mg–10Gd–3Y–0.5Zr and Mg–11Y–5Gd–2Zn–0.5Zr alloys at various temperatures showed that Mg–10Gd–3Y–0.5Zr was more sensitive to temperature. The increase in impact toughness with temperature was related to the blunt crack-tip at
Anyanwu +24 more
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Modelling brittle fracture propagation in gas and dense-phase CO2 transportation pipelines [PDF]
, 2016 The development and application of a fluid–structure interaction model for simulating the transition of a through-wall defect in pressurised dense (150 bar, 283.15 K) and gas phase (34 bar, 283.15 K) CO2 pipelines into a running brittle fracture is ...
Brown, S, Mahgerefteh, H, Zhang, P
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Intermittency and roughening in the failure of brittle heterogeneous materials [PDF]
, 2009 Stress enhancement in the vicinity of brittle cracks makes the macro-scale failure properties extremely sensitive to the micro-scale material disorder.
Bonamy, D.
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Estimating Terminal Velocity of Rough Cracks in the Framework of Discrete Fractal Fracture Mechanics [PDF]
, 2010 In this paper we first obtain the order of stress singularity for a dynamically propagating self-affine fractal crack. We then show that there is always an upper bound to roughness, i.e. a propagating fractal crack reaches a terminal roughness.
Khezrzadeh, Hamed, Yavari, Arash
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, 2002 We suggest that the observed large-scale universal roughness of brittle fracture surfaces is due to the fracture process being a correlated percolation process in a self-generated quadratic damage gradient.
A. Hansen +19 more
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