scholarly journals Study on Brittle Fracture Model for Multiaxial Tensile Stress

2005 ◽  
Vol 54 (2) ◽  
pp. 201-206
Author(s):  
Satoshi HANAWA ◽  
Masahiro ISHIHARA ◽  
Yoshinobu MOTOHASHI
Keyword(s):  
Brittle Fracture ◽  
Tensile Stress ◽  
Fracture Model

Analysis of the Crack Fracture Morphology of the Asphalt Mixture under Tensile Stress Effects

2011 ◽  
Vol 250-253 ◽  
pp. 3533-3537 ◽  
Author(s):  
Li Hua Zhao ◽  
Jing Yun Chen ◽  
Sheng Wu Wang
Keyword(s):  
Brittle Fracture ◽  
Fracture Surface ◽  
Tensile Stress ◽  
Mechanical Characteristics ◽  
Asphalt Mixture ◽  
Fracture Morphology ◽  
Microscopic Mechanism ◽  
Interface Zone ◽  
Stress Effects ◽  
Bending Fracture

Through studying the bending fracture and cleavage fracture of the asphalt mixture within the different temperature condition, confirming that the temperature influences the microscopic mechanism of mixture cracking: the fracture is relatively flat with low temperture, the destruction of the asphalt mixture is also mainly result of the brittle fracture; As the temperature rise, fracture surface becomes coarse, some part show large plastic elapse deformation. Adding fiber can reduce thickness of the asphalt membrane, improve the bonding strength of asphalt mastic, and greatly increase the ratio of the aggregate fracture and interface zone fracture, so as to enhance the asphalt mixture crack-resistance. The fracture morphology of asphalt mixture has a better reflection for its mechanical characteristics.

Quasi-brittle fracture model in peridynamics

2019 ◽  
Vol 2019.32 (0) ◽  
pp. 281
Author(s):  
Michiya Imachi ◽  
Hiroki Takahashi ◽  
Satoyuki Tanaka
Keyword(s):  
Brittle Fracture ◽  
Fracture Model

Stress Concentrations for Filled and Unfilled Closely Spaced Cylindrical Defects

1985 ◽  
Vol 107 (4) ◽  
pp. 271-276 ◽  
Author(s):  
T. Ihara ◽  
M. C. Shaw
Keyword(s):  
Brittle Fracture ◽  
Tensile Stress ◽  
Young’S Modulus ◽  
Fracture Stress ◽  
Brittle Materials ◽  
Critical Value ◽  
Stress Concentrations ◽  
High Quality ◽  
Close Spacing ◽  
The Matrix

All real materials contain defects which significantly reduce the fracture stress of brittle materials. It has been proposed by Griffith [3] that brittle fracture occurs when the maximum intensified tensile stress on the surface of a defect reaches a critical value. It has recently been found [1] that for many brittle materials of high quality, the nature and density of the defects are such that they may be modelled by isolated cylindrical voids. This study considers the stress intensification consequences of the close spacing of cylindrical defects that are filled with a material having a Young’s modulus different than that of the matrix.

Applicability of Fracture Toughness Prediction by Coupled Damage Mechanics Model and Brittle Fracture Model for Ductile

2017 ◽  
Vol 2017 (0) ◽  
pp. OS0617
Author(s):  
Kibinobu HOJO ◽  
Takatoshi HIROTA ◽  
Naoki OGAWA ◽  
Kentarou YOSHIMOTO ◽  
Yasuto NAGOSHI ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Brittle Fracture ◽  
Damage Mechanics ◽  
Fracture Model ◽  
Mechanics Model

scholarly journals Моделирование динамического старта трещины на основе перидинамической численной модели и критерия инкубационного времени

2021 ◽  
Vol 91 (3) ◽  
pp. 435
Author(s):  
М.О. Игнатьев ◽  
Ю.В. Петров ◽  
Н.А. Казаринов
Keyword(s):  
Experimental Data ◽  
Brittle Fracture ◽  
Crack Initiation ◽  
Polymer Material ◽  
High Speed ◽  
Numerical Scheme ◽  
Glassy Polymer ◽  
Fracture Model ◽  
Loading Conditions ◽  
Dynamic Brittle Fracture

The problems of dynamic brittle fracture under the high-speed loading conditions were investigated. A new numerical scheme based on the peridynamic approach and a structural-time fracture model is used to predict the crack initiation in the specimens of glassy polymer material. Comparison of numerical results with experimental data is presented

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