Abstract
In this work, the capability of Fast Fourier transform (FFT) solvers is extended to interface damage modelling. The grid based discretization necessitates to incorporate the cohesive fracture concept using the ideas of continuum damage mechanics and by approximating the sharp interfaces as interphases. The interface crack opening and sliding is modelled using anisotropic kinematics. The decohesion model and the related nonlocal regularization within the interphases, including triple junctions, are discussed in the context of regular grid discretization. An integral nonlocal approach is used to obtain delocalized deformation and it also enables the intended scaling of cohesive parameters. The response of the model—in terms of overall response and the insensitivity of dissipation to interphase thickness—is discussed in a one-dimensional study. Crack propagation modelling along straight and non-straight interface paths in two dimensional polycrystals is also presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
