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Crack-tip strain field mapping and the toughness of metallic glasses. [PDF]
PLoS ONE, 2013 We have used high-energy x-ray scattering to map the strain fields around crack tips in fracture specimens of a bulk metallic glass under load at room temperature and below.
Todd C Hufnagel +2 more
doaj +4 more sources
Dental Materials, 2018 To quantify the extent of crack-tip plasticity, crack opening displacement (COD) and crack bridging for crack growth perpendicular (HAH) and parallel (RAR) to the tubules in elephant dentin under both hydrated and dry conditions to better understand their influence on intrinsic and extrinsic toughening during crack growth.Compact tension test-pieces ...
Philip Withers +2 more
exaly +5 more sources
Near tip strain evolution of a growing fatigue crack [PDF]
Fracture and Structural Integrity, 2015 Near tip full-field strains in a growing fatigue crack have been studied in situ using the Digital Image Correlation (DIC) technique in a compact tension specimen of stainless steel 316L under tension-tension cyclic loading.
M.-L. Zhu, Y.-W. Lu, C. Lupton, J. Tong
doaj +3 more sources
Near tip strain evolution under cyclic loading [PDF]
Fracture and Structural Integrity, 2013 The concept of ratchetting strain as a crack driving force in controlling crack growth has previously been explored at Portsmouth using numerical approaches for nickel-based superalloys.
J. Tong +4 more
doaj +3 more sources
Role of plasticity-induced crack closure in fatigue crack growth [PDF]
Fracture and Structural Integrity, 2013 The premature contact of crack surfaces attributable to the near-tip plastic deformations under cyclic loading, which is commonly referred to as plasticity induced crack closure (PICC), has long been focused as supposedly controlling factor of fatigue ...
Jesús Toribio, Viktor Kharin
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2D mapping of plane stress crack-tip fields following an overload [PDF]
Fracture and Structural Integrity, 2015 The evolution of crack-tip strain fields in a thin (plane stress) compact tension sample following an overload (OL) event has been studied using two different experimental techniques.
P. J. Withers +5 more
doaj +3 more sources
Plastic zone evolution near a crack tip and its role in environmentally assisted cracking [PDF]
Fracture and Structural Integrity, 2013 This paper analyzes the effects of crack tip plastic strains and compressive residual stresses, created by fatigue pre-cracking, on environmentally assisted cracking of pearlitic steel subjected to localized anodic dissolution and hydrogen assisted ...
Jesús Toribio, Viktor Kharin
doaj +2 more sources
Вестник Самарского университета: Естественнонаучная серия, 2023 The research is devoted to the study of the stress field at the crack tip in an anisotropic material with three mutually orthogonal axes of symmetry of the fourth order (with cubic symmetry). A plane case is considered when one of the axes of symmetry is
Karina A. Mushankova +1 more
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Strain Behavior at Crack Tip in Thin Plate Using Numerical and Experimental Work [PDF]
Engineering and Technology Journal, 2016 In this work, strains were studied and analyzed in a thin flat plate with a surface crack at the center, subjected to cycling of low velocity impact loading for two types of aluminum plates (2024, 6061).
Fathi A.Alshamma, Bassam Ali Ahmed
doaj +1 more source
Crack Tip Fields with Strain Gradient Effects [PDF]
International Journal of Nonlinear Sciences and Numerical Simulation, 2002 In this paper, a kind of strain gradient theory proposed by Chen and Wang (2001) is briefly introduced and is used to analyze the crack tip field in homogeneous materials and interface crack tip field with the help of finite element methods. Differences are found between the two kinds of crack tip fields.
S. H. Chen, T. C. Wang
openaire +1 more source