Results 21 to 30 of about 3,613 (259)
Experimental evaluation of plasticity-induced crack shielding from crack tip displacements fields [PDF]
Fracture and Structural Integrity, 2015 In this work it is proposed a methodology for the evaluation of plasticity-induced crack shielding from the analysis of the crack tip displacements fields measured by digital image correlation.
J.M. Vasco-Olmo, F.A. Díaz
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Strain model and experimental study of elastic viscoplastic for crack-tip zone of X80 steel pipe
Journal of Pipeline Science and Engineering, 2022 The mechanical state of the process zone at the crack-tip is one of the main factors that affect crack initiation and growth in the long-term safe operation of oil and gas pipelines. Many tests showed that the stress and strain fields in the fracture-tip
Shaohua Dong +7 more
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Strain field measurement around the crack tip in Ni-base superalloy using Digital Image Correlation
Nihon Kikai Gakkai ronbunshu, 2018 Digital Image Correlation (DIC) method was applied to measure the strain fields around the crack tip in a Ni-base single crystal superalloy. DIC systems were assembled to appropriately measure the strain fields at room temperature, 700°C and 900°C ...
Yuki OTSUKA +3 more
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Crack tip fields in ductile crystals [PDF]
International Journal of Fracture, 1990 Results on the asymptotic analysis of crack tip fields in elastic-plastic single crystals are presented and some preliminary results of finite element solutions for cracked solids of this type are summarized. In the cases studied, involving plane strain tensile and anti-plane shear cracks in ideally plastic f c c and b c c crystals, analyzed within ...
J. R. Rice, D. E. Hawk, R. J. Asaro
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Crack-tip Stress Fields on Anisotropic Plate
Journal of Physics: Conference Series, 2021 The basic equation of elastic mechanics has been established according to the anisotropic material properties. The crack-tip stress problem has been investigated for the mixed loading condition. In order to determine the stress fields in an anisotropic plate, the pan-complex variable means must be utilized.
Purong Jia, Yongyong Suo
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Experience in modeling inclined cracks in materials with cubic crystal structure
Вестник Самарского университета: Естественнонаучная серия, 2023 In this work, a good coincidence of atomistic and continuum stress fields at the crack tip under mixed mode loading conditions in an anisotropic medium with cubic symmetry of elastic properties is revealed. The atomic stress distributions associated with
Karina A. Mushankova +1 more
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Silva Fennica, 2000 Near tip displacement fields for tensile loaded cracked rubber and wood with a crack parallel-, perpendicular-to-grain, and a parallel-to-grain crack inclined 30°, 45°, and 60° to the load axis were obtained from digital image correlation (DIC ...
Samarasinghe, S., Kulasiri, G.
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Experimental methodology for the quantification of crack tip plastic zone and shape from the analysis of displacement fields [PDF]
Fracture and Structural Integrity, 2017 The current work presents a novel methodology for the experimental quantification of the crack tip plastic zone during fatigue crack growth. This methodology is based on the application of yield criteria to estimate the area and the shape of the plastic ...
J.M. Vasco-Olmo +4 more
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Dynamic Strain Evolution around a Crack Tip under Steady- and Overloaded-Fatigue Conditions
Metals, 2015 We investigated the evolution of the strain fields around a fatigued crack tip between the steady- and overloaded-fatigue conditions using a nondestructive neutron diffraction technique.
Soo Yeol Lee +5 more
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Shock and Vibration, 2018 A novel hybrid image processing method is proposed to obtain the crack tip location, crack propagation path, displacement, strain fields, and plastic zone size of crack tip region under high-frequency resonant loading in this paper.
Hongli Gao +4 more
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