Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Ala Tabiei"'
Autor:
Wenlong Zhang, Ala Tabiei
Publikováno v:
Journal of Applied and Computational Mechanics, Vol 6, Iss 3, Pp 373-382 (2020)
The phase field method integrates the Griffith theory and damage mechanics approach to predict crack initiation, propagation, and branching within one framework. No crack tracking topology is needed, and complex crack shapes can be captures without u
Externí odkaz:
https://doaj.org/article/8dbc18c805c6400eaa0eaf43ae6727eb
Autor:
S Babu Aminjikarai, Ala Tabiei
Publikováno v:
International Journal of Multiphysics, Vol 1, Iss 1 (2007)
An elastodynamic fracture model has been implemented in the explicit finite element software DYNA3D that predicts energy release rates of stationary, through-thickness, 3-D cracks in linearly elastic materials. This work is part of an on-going effort
Externí odkaz:
https://doaj.org/article/ac8718da62df4e2887c2c8269b8015da
Autor:
Ala Tabiei, Li Meng
Publikováno v:
Theoretical and Applied Fracture Mechanics. 125:103902
Publikováno v:
Acta Mechanica Sinica. 37:92-104
The phase field method for fracture integrates the Griffith theory and damage mechanics approach to predict crack initiation and propagation within one framework. It replaced the discrete representation of crack by diffusive damage and solved it base
Autor:
Wenlong Zhang, Ala Tabiei
Publikováno v:
International Journal for Computational Methods in Engineering Science and Mechanics. 22:21-31
The phase field method transfers the crack surface area into a domain integral through a smeared damage parameter. As a result, the fracture energy release rate can be directly incorporated into th...
Autor:
Ala Tabiei, Sandeep Medikonda
Publikováno v:
Journal of Composite Materials. 53:4015-4034
The effectiveness of studying inter-laminar delamination in laminated composites with the help of thickness-stretch shell elements which utilize a 3-D material model sub-routine as compared to the traditional plane-stress shell elements has been inve
Autor:
Ala Tabiei, Sandeep Medikonda
Publikováno v:
Engineering Solid Mechanics. :263-278
Publikováno v:
International Journal for Computational Methods in Engineering Science and Mechanics. 19:363-373
The zero-thickness cohesive element method (CEM) is a powerful way to simulate crack propagation. However, it suffers from artificial compliance issue and alters the wave speed in dynamic analyses....
Autor:
Ala Tabiei, Wenlong Zhang
Publikováno v:
Journal of Failure Analysis and Prevention. 18:607-618
Cohesive zone model is an important tool for fatigue analysis, especially for fatigue crack growth along with an interface. A pioneering model is the one of Roe and Siegmund (Eng Fract Mech 70:209–232, 2003), in which the damage accumulation is cal
Autor:
Ala Tabiei, Sandeep Medikonda
Publikováno v:
Journal of Thermoplastic Composite Materials. 31:1634-1660
A micro-mechanical composite material model is developed to simulate the behavior of unidirectional composites under impact loading conditions in the nonlinear finite element solver (LS-DYNA®). The nonlinear strain rate and pressure dependency in th