Results 291 to 300 of about 101,352 (336)
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The fracture mechanics of finite crack extension
Engineering Fracture Mechanics, 2005This paper describes a modification to the traditional Griffith energy balance as used in linear elastic fracture mechanics (LEFM). The modification involves using a finite amount of crack extension (Δa) instead of an infinitesimal extension (da) when calculating the energy release rate.
David Taylor, Pietro Cornetti
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Analysis of Hertzian indentation fracture in the framework of finite fracture mechanics
International Journal of Fracture, 2017The concept of finite fracture mechanics which assumes the spontaneous formation of a small, yet finite, crack and employs as stress-based as well as an energetic criterion is applied to the problem of indentation fracture initiation in brittle solids. In evaluating the energetic part of the fracture criterion a semi-analytical and a numerical approach,
Strobl, Michael +2 more
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Finite fracture mechanics: A coupled stress and energy failure criterion
Engineering Fracture Mechanics, 2006The aim of the present paper is to introduce a new failure criterion in the framework of Finite Fracture Mechanics. Criteria assuming that failure of quasi-brittle materials is affected by stress or energy flux acting on a finite distance in front of the crack tip are widely used inside the scientific community.
Pietro Cornetti +2 more
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Mechanism of scaphoid waist fracture: finite element analysis
Journal of Hand Surgery (European Volume), 2022The mechanism of scaphoid waist fracture is not completely understood. We used finite element analysis to study the formation of scaphoid waist fractures. Clinical computed tomography scans of 12 wrists were used to create models for finite element analysis.
John Ashutosh Santoshi +3 more
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Probabilistic Finite Element for Fracture Mechanics
HKIE Transactions, 2008This paper presents a probabilistic methodology for fracture mechanics analysis of cracked structures. The main focus is on probabilistic aspect which related the nature of crack in material. The methodology involves finite element analysis; statistical models for uncertainty in material properties, crack size, fracture toughness and loads; and ...
M R M Akramin +5 more
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Finite stress in fracture mechanics
Engineering Fracture Mechanics, 1994Abstract The problem of implementing an essentially finite solution of the arbitrary boundary condition homogeneous medium mathematical rupture problem in terms of elasticity linear theory is discussed. The relevant concepts taken as a principle solution with the infinite strain values in rupture tips cannot be dealt with by damage mechanics.
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Finite element methods in fracture mechanics
Computers & Structures, 1989Finite-element methodology specific to the analysis of fracture mechanics problems is reviewed. Primary emphasis is on the important algorithmic developments which have enhanced the numerical modeling of fracture processes. Methodologies to address elastostatic problems in two and three dimensions, elastodynamic problems, elastoplastic problems ...
H. Liebowitz, E.T. Moyer
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Finite element models for rock fracture mechanics
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1980AbstractA finite element model for the prediction of discrete fracture propagation in rock structures loaded in compression is presented. The model integrates any one of three theories for mixed‐mode fracture initiation; it contains an energy balance algorithm for predicting crack increment length, and incorporates recent developments in finite element
Ingraffea, Anthony R. +1 more
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