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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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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Williams Expansion Terms and their Importance for Accurate Stress Field Description in Specimens with a Crack [PDF]
Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2013 The paper deals with an analysis of the stress and displacement fields in various cracked specimens (loaded in mode I as well as in mode II). The main goal is to determine an accurate approximation of the near-crack-tip fields which can be subsequently
Lucie MALÍKOVÁ, Václav VESELÝ
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Multi-parameter crack tip stress state description for estimation of fracture process zone extent in silicate composite WST specimens [PDF]
Fracture and Structural Integrity, 2013 For wedge splitting test specimens, the stress and displacement fields both in the vicinity and also in larger distance from the crack tip are investigated by means of numerical methods. Several variants of boundary conditions were modeled.
Václav Veselý +4 more
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Multi-parameter approximation of stress field in a cracked specimen using purpose-built Java applications [PDF]
Fracture and Structural Integrity, 2015 A quality of multi-parameter approximation of the stress and displacement fields around a crack tip in a non-brittle material test specimen is studied in the paper.
V. Veselý +5 more
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Application of holography method for the restoration of the Williams series near the crack tip
Вестник Самарского университета: Естественнонаучная серия, 2023 The article describes the processing of the results of a series of experiments performed by the interference-optical method of holographic interferometry (holographic photoelasticity) aimed at computing the amplitude coefficients of the M.
Larisa V. Stepanova +2 more
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Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model [PDF]
, 2008 A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions.
Chen, Y.K., Tiu, W., Wang, L., Xu, Y.
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Fracture and Structural Integrity, 2020 Explicit and simple expressions for root compliance coefficients, which can be used to define root rotations and root displacements at the crack tip cross section of orthotropic cracked beams, are derived under general self-equilibrated loading ...
Ilaria Monetto, Roberta Massab
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Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements [PDF]
Fracture and Structural Integrity, 2017 A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in
S. Seitl +4 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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