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Generalized J-integral – mathematical foundation
Boundary Value ProblemsThis article describes the mathematics for building the foundations of the theory of the Generalized J-integral (GJ-integral) in various variational problems defined on D that gives the shape derivative on singular points such as boundaries, cracks ...
Kohji Ohtsuka
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Resolving the fundamentals of the J-integral concept by multi-method in situ nanoscale stress-strain mapping [PDF]
Communications MaterialsThe integrity of structural materials is oftentimes defined by their resistance against catastrophic failure through dissipative plastic processes at the crack tip, commonly quantified by the J-integral concept.
Michael Meindlhumer +9 more
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Open Engineering, 2022 This article presents the results of analytical and numerical research focused on the numerical determination of selected fracture mechanics parameters for beams containing a crack in the state of four-point bending with the dominance of a plane strain ...
Graba Marcin
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THE ANALYSIS OF CRACK ON COMPOSITE MATERIALS BY USING ENERGY METHOD [PDF]
مجله مدل سازی در مهندسی, 2009 Â A . Fereidoon1,*, F . Yektaye Kia2 Â Â Â 1- Associate Professor, Faculty of Mechanical Engineering, Semnan University, Semnan, Iran. Â 2- M.Sc. Student, Faculty of Mechanical Engineering, Semnan university, Semnan, Iran.
عبدالحسین فریدون +1 more
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Brittle failure criteria of CNRB specimen for fracture toughness test
Mechanical Engineering Journal, 2020 This paper proposes a technique to determine the dimensions of a CNRB specimen to be used for plane fracture toughness tests. First, the brittle fracture behavior satisfying the small-scale yielding condition is investigated through an elasto-plastic ...
Manato KANESAKI +4 more
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On damage process of ceramic thermal barrier coatings subjected to high-temperature tensile loading
Nihon Kikai Gakkai ronbunshu, 2015 Thermal barrier coatings (TBCs) have been deposited onto the blade surface in a land-based gas turbine according to increase of turbine inlet temperature (TIT).
Masayuki ARAI +2 more
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Fracture and Structural Integrity, 2019 In this paper an additional criterion was introduced to evaluate the composite repair systems using the limit load analysis. The plastic collapse pressure of API 5L X65 PSL2 steel pressure vessel structure with crack defect is numerically investigated ...
M. Belhamiani +4 more
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Nihon Kikai Gakkai ronbunshu, 2015 In this study, the damage process of Thermal Barrier Coatings (TBC), which were exposed at 1273K for 500hours in advance, under tensile loading was observed continuously, and the influence of exposure temperature on crack initiation strength and ...
Yuto SHIMIZU +2 more
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Microscopic observation of creep-fatigue crack propagation in lead-free solder
Nihon Kikai Gakkai ronbunshu, 2015 Creep-fatigue crack propagation tests of lead-free solder were conducted under various loading waveforms. The waveforms adapted in displacement-controlled tests were four triangular waveforms: pp waveform having fast loading-unloading, cc waveform having
Keisuke TANAKA +4 more
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Integrability of atJmodel with impurities [PDF]
Journal of Physics A: Mathematical and General, 1999 A t-J model for correlated electrons with impurities is proposed. The impurities are introduced in such a way that integrability of the model in one dimension is not violated. The algebraic Bethe ansatz solution of the model is also given and it is shown that the Bethe states are highest weight states with respect to the supersymmetry algebra gl(2/1)
Links, J. R., Foerster, A.
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