Coupled fictitious stress and displacement discontinuity boundary element method for half plane rock fragmentation and crack problems

Buyurgan, Gürkan Burak


Coupled chemomechanics and phase field modeling of failure in electrode materials of Li ion batteries
Dal, Hüsnü (2013-03-22)
We propose a canonical finite strain theory for diffusion-mechanics coupling for the intercalation induced stress generation in Li-ion electrode particles. The intrinsic coupling arises from both mechanical pressure gradient-induced diffusion of Li-ion particles and diffusion induced swelling/shrinkage leading to mechanical stresses. In addition, we extend the finite strain theory for diffusion-mechanics coupling to chemomechanical fracture of electrode particles by introducing a nonlocal crack phase field ...
Nonlinear seismic response evaluation of tunnel form building structures
Balkaya, C; Kalkan, E (Elsevier BV, 2003-02-01)
The occurrences of (M-w = 7.4) Kocaeli and (M-w = 7.1) Duzce earthquakes in Turkey in 1999 once again demonstrate the nondamaged and high performance conditions of RC shear wall dominant structures commonly built by using the tunnel form technique. This study presents their seismic performance evaluation based on the nonlinear pushover analyses of two case studies. The contribution of transverse walls and slab-wall interaction during the 3D action, the effects of 3D and 2D modeling on the capacity-demand re...
Nonlinear Vibration Analysis of Uniform and Functionally Graded Beams with Spectral Chebyshev Technique and Harmonic Balance Method
Dedekoy, Demir; Ciğeroğlu, Ender; Bediz, Bekir (2023-01-01)
In this paper, nonlinear forced vibrations of uniform and functionally graded Euler-Bernoulli beams with large deformation are studied. Spectral and temporal boundary value problems of beam vibrations do not always have closed-form analytical solutions. As a result, many approximate methods are used to obtain the solution by discretizing the spatial problem. Spectral Chebyshev technique (SCT) utilizes the Chebyshev polynomials for spatial discretization and applies Galerkin's method to obtain boundary condi...
Mixed-mode fracture analysis of orthotropic functionally graded material coatings using analytical and computational methods
Dağ, Serkan (ASME International, 2008-09-01)
This article presents analytical and computational methods for mixed-mode fracture analysis of an orthotropic functionally graded material (FGM) coating-bond coat-substrate structure. The analytical solution is developed by considering an embedded crack in the orthotropic FGM coating. The embedded crack is assumed to be loaded through arbitrary self-equilibrating mixed-mode tractions that are applied to its surfaces. Governing partial differential equations for each of the layers in the trilayer structure a...
Nonlinear Free Vibrations of Functionally Graded Microplates Based on the Modified Couple Stress Theory
Demirkaya, Sinem; Ciğeroğlu, Ender (2021-02-19)
Citation Formats
G. B. Buyurgan, “Coupled fictitious stress and displacement discontinuity boundary element method for half plane rock fragmentation and crack problems,” Middle East Technical University, 1998.