Investigation of crack propagation in plain concrete using Phase-field model

Author(s):  
Hanadi Abdulridha Lateef ◽  
Rafil Mahmood Laftah ◽  
Nabeel Abdulrazzaq Jasim
PAMM ◽  
2010 ◽  
Vol 10 (1) ◽  
pp. 117-118
Author(s):  
Martina Hofacker ◽  
Christian Miehe ◽  
Fabian Welschinger

2016 ◽  
Vol 312 ◽  
pp. 254-275 ◽  
Author(s):  
Fatemeh Amiri ◽  
Daniel Millán ◽  
Marino Arroyo ◽  
Mohammad Silani ◽  
Timon Rabczuk

2018 ◽  
Vol 200 ◽  
pp. 339-354 ◽  
Author(s):  
Arezoo Emdadi ◽  
William G. Fahrenholtz ◽  
Gregory E. Hilmas ◽  
Mohsen Asle Zaeem

2017 ◽  
Vol 122 (11) ◽  
pp. 115102 ◽  
Author(s):  
Duc Hong Doan ◽  
Tinh Quoc Bui ◽  
Thom Van Do ◽  
Nguyen Dinh Duc

Author(s):  
Christoph Herrmann ◽  
Daniel Schneider ◽  
Ephraim Schoof ◽  
Felix Schwab ◽  
Britta Nestler

In this work, a small-strain phase-field model is presented, which is able to predict crack propagation in systems with anisotropic brittle and ductile constituents. To model the anisotropic brittle crack propagation, an anisotropic critical energy release rate is used. The brittle constituents behave linear-elastically, in a transversely isotropic manner. Ductile crack growth is realised by a special crack degradation function, depending on the accumulated plastic strain, which is calculated by following the J2-plasticity theory. The mechanical jump conditions are applied in solid-solid phase transition regions. The influence of the relevant model parameters on a crack, propagating through a planar brittle-ductile interface, and furthermore a crack developing in a domain with a single anisotropic brittle ellipsoid, embedded in a ductile matrix, is investigated. We demonstrate that important properties, concerning the mechanical behaviour of grey cast iron, such as the favoured growth of cracks along the graphite lamellae and the tension-compression load asymmetry of the stress-strain response, are covered by the model. The behaviour is analysed on basis of a simulation domain consisting of three differently oriented elliptical inclusions, embedded in a ductile matrix, which is subjected to tensile and compressive load. The used material parameters correspond to graphite lamellae and pearlite.


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