![]() ![]() Geomechanics Module enables multiphysics modeling in geotechnical applications such as tunnels.Įlectrodeposition Module brings the power of COMSOL to electrochemical processes for chrome plating. Microfluidics Module brings easy-to-use tools for the study of microfluidic devices and rarefied gas flows. With this release, COMSOL continues to deliver on its promise to supply the science and engineering markets with the state-of-the-art simulation products for an expanding set of applications. ![]() Version 4.2 empowers current users to do more with their simulation environments, while new industries will now be able to leverage the innovation of multiphysics simulation. Our simulations show good agreement with previous works, indicating the feasibility and validity of the COMSOL implementation of PFM.COMSOL Multiphysics 4.2 represents a significant expansion of the software’s applications, features, and functionality. A number of 2D and 3D examples are tested to investigate the performance of the present implementation. A staggered scheme is adopted to solve the coupled system and each module is solved sequentially during one time step. Equations that govern body motion and phase-field evolution are written into different modules in COMSOL, which are then coupled to a whole system to be solved. The width of the diffusive crack is controlled by a length-scale parameter. Notably only the tensile stress induced crack is accounted for crack evolution by using the decomposition of elastic strain energy. In this work, the authors aim to devise a simple and efficient implementation of phase-field model for the modelling of quasi-static and dynamic fracture in the general purpose commercial software developer, COMSOL Multiphysics. Therefore, it is supposed that the implementation of PFM based on a software developer that especially supports the solution of multifield problems should be more effective, simpler and more efficient than PFM implemented on a general finite element software. Due to the involvement of “phased field”, phase-field method can be essentially treated a multifield problem even for pure mechanical problem. This feature enables PFM to effectively model crack propagation compared with numerical methods based on discrete crack model, especially for complex crack patterns. ![]() The phase-field model (PFM) represents the crack geometry in a diffusive way without introducing sharp discontinuities. ![]()
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