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Acoustic Emission Mechanisms and Fracture Mechanisms in Reinforced Concrete Beams Under Cyclic Loading and Unloading. [PDF]
Materials (Basel)Yu A, Miao T, Liu T, Yang Y, Chen Z.
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Comparison of Crack Growth Models and Crack Closure Effect
Advanced Materials Research, 2011 According to standard test method for fatigue crack growth rates of metallic materials, the crack growth rate of 30NCD16 at three stress ratio (R=0.1, 0.3 and 0.5) were measured. Based on linear elasticity fracture mechanics theory, the fatigue crack growth rate was studied through the nonlinear least squares fitting method.
Wen Lin Liu +4 more
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A model for characterizing crack closure effect of rocks
Engineering Geology, 2015Abstract When there are large amounts of microcracks in the rock, they influence the rock strength and deformation significantly. The crack closure behavior in compression tests and its quantitative characterization are studied in this paper.
Jun Peng, Guan Rong, Ming Cai
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A cumulative model of fatigue crack growth and the crack closure effect
International Journal of Fatigue, 1984Abstract A model of fatigue crack growth based on an analysis of elastic/plastic stress and strain at the crack tip is presented. It is shown that the fatigue crack growth rate can be calculated using the local stress/strain at the crack tip by assuming that a small highly strained area x ∗ , existing at the crack tip, is responsible for ...
G. Glinka +3 more
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International journal for numerical and analytical methods in geomechanics (Print), 2023
This paper is devoted to establishing a nonlinear constitutive model incorporating crack closure effect for capturing the whole process of rock deformation and failure behavior under compression.
Lu Ren +4 more
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This paper is devoted to establishing a nonlinear constitutive model incorporating crack closure effect for capturing the whole process of rock deformation and failure behavior under compression.
Lu Ren +4 more
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Effect of crack closure on gear crack propagation
International Journal of Fatigue, 2001Computational and experimental studies were performed in order to investigate the propagation of cracking in a spur gear tooth. The stress intensity factors were numerically calculated by the definition of weight functions and by finite element analysis.
GUAGLIANO, MARIO, VERGANI, LAURA MARIA
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Effect of crack closure on crack initiation parameters
Engineering Fracture Mechanics, 1986Young’s modulus shear modulus elastic constant : 3 -4y plane strain ; 3 -r/l + y plane stress force per unit thickness of plate open end mode I stress intensity factor open end mode II stress intensity factor Poisson’s ratio applied uniform tension, 2p/k + 1 distance of concentrated force from centre line of crack maximum normal stress minimum strain ...
R.S. Alwar, S. Thiagarajan
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