Application of dynamic shear crack models to the study of the earthquake faulting process

1985 ◽  
pp. 137-150 ◽  
Author(s):  
Shamita Das
Keyword(s):  
Shear Crack ◽  
Dynamic Shear ◽  
Earthquake Faulting

On the Numerical Boundary Integral Equation Method for Three-Dimensional Dynamic Shear Crack Problems

1987 ◽  
Vol 54 (1) ◽  
pp. 99-104 ◽  
Author(s):  
S. Das ◽  
B. V. Kostrov
Keyword(s):  
Integral Equation ◽  
Boundary Integral Equation ◽  
Shear Crack ◽  
Integral Equation Method ◽  
Boundary Integral ◽  
Boundary Integral Equation Method ◽  
Equation Method ◽  
Crack Plane ◽  
Dynamic Shear ◽  
Crack Problems

The numerical boundary integral equation method for the solution of dynamic shear crack problems is discussed in detail, including the questions of the numerical approximation, stability, and efficiency. In particular, the necessary conditions for stability are developed. In addition to a discussion of the original algorithm proposed by Das (1980), a new version is proposed which is more efficient for some important particular cases, due to the fact that the domain of integration for the necessary convolutions is limited only to the slipping part of the crack plane instead of the entire disturbed area of the crack plane.

Dynamic Shear Modulus Prediction of Asphalt Mastic Based on Micromechanics

2018 ◽  
Author(s):  
Naisheng Guo ◽  
Zhichen Wang ◽  
Zhanping You ◽  
Yinghua Zhao
Keyword(s):  
Shear Modulus ◽  
Dynamic Shear Modulus ◽  
Dynamic Shear ◽  
Asphalt Mastic

Dynamic shear behavior of GMB/CCL interface under cyclic loading

2020 ◽  
Author(s):  
Shi-Jin Feng ◽  
Jia-Liang Shi ◽  
Yang Shen ◽  
Hong-Xin Chen ◽  
Ji-Yun Chang
Keyword(s):  
Cyclic Loading ◽  
Shear Behavior ◽  
Dynamic Shear

Critical shear crack theory-based punching shear model for FRP-reinforced concrete slabs

2020 ◽  
pp. 136943322097814
Author(s):  
Xing-lang Fan ◽  
Sheng-jie Gu ◽  
Xi Wu ◽  
Jia-fei Jiang
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Shear Crack ◽  
Concrete Strength ◽  
Weight Ratio ◽  
Punching Shear ◽  
Concrete Slabs ◽  
Crack Theory ◽  
Reinforced Concrete Slabs ◽  
Rc Slabs

Owing to their high strength-to-weight ratio, superior corrosion resistance, and convenience in manufacture, fiber-reinforced polymer (FRP) bars can be used as a good alternative to steel bars to solve the durability issue in reinforced concrete (RC) structures, especially for seawater sea-sand concrete. In this paper, a theoretical model for predicting the punching shear strength of FRP-RC slabs is developed. In this model, the punching shear strength is determined by the intersection of capacity and demanding curve of FRP-RC slabs. The capacity curve is employed based on critical shear crack theory, while the demand curve is derived with the help of a simplified tri-linear moment-curvature relationship. After the validity of the proposed model is verified with experimental data collected from the literature, the effects of concrete strength, loading area, FRP reinforcement ratio, and effective depth of concrete slabs are evaluated quantitatively.

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