A Composite Cell model for BCC Structured Metals Under Strain Path Changes

Yalçınkaya, Tuncay
Geers, M G D


A Diffusive crack model for fiber reinforced polymer composites
Aksu Denli, Funda; Dal, Hüsnü; Department of Mechanical Engineering (2020)
Recently, classical fracture mechanics approaches based on Griffith type sharp crack topologies have left the stage to diffusive crack approaches or the so called phase field models. Crack initiation and propagation is based on the variational principles for energy minimization leading to symmetric set of algebraic equations. In this thesis, which is the first attempt to model failure of engineered composites using an anisotropic crack phase–field approach, Fiber Reinforced Polymer (FRP) specific anisotropi...
A Finite element model for partially restrained steel beam to column connections
Köseoğlu, Ahmet; Sarıtaş, Afşin; Department of Civil Engineering (2013)
In the analyses of steel framed structures it is customary to assume the beam to column connections as either fully rigid which means that all moments are transferred from beam to column with negligible rotation or ideally pinned that resists negligible moment. This assumption is reasonable for some types of connections. However when considering steel connections such as bolted-bolted double web angle connections it can be seen that the behavior of these connections is in between the two extreme cases. Thus...
A composite dislocation cell model to describe strain path change effects in BCC metals
Yalçınkaya, Tuncay; Geers, M.G.D. (IOP Publishing, 2009-11-16)
Sheet metal forming processes are within the core of many modern manufacturing technologies, as applied in, e.g., automotive and packaging industries. Initially flat sheet material is forced to transform plastically into a three-dimensional shape through complex loading modes. Deviation from a proportional strain path is associated with hardening or softening of the material due to the induced plastic anisotropy resulting from the prior deformation. The main cause of these transient anisotropic effects at m...
A Three dimensional water quality-macrophyte interaction model for shallow lakes
Muhammetoğlu Bayar, Ayşe; Soyupak, Selçuk; Department of Environmental Engineering (1998)
Doğu, Timur (Informa UK Limited, 1991-01-01)
A simple model was proposed for the prediction of tortuosity factor of porous solids with mono or bidispersed pore size distributions. Model predictions were presented in graphical form for quick estimation of tortuosity. The experimental tortuosity factors reported in the literature for porous solids of different pore structures and the corresponding predicted values showed good agreement.
Citation Formats
T. Yalçınkaya and M. G. D. Geers, “A Composite Cell model for BCC Structured Metals Under Strain Path Changes,” 2008, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/76918.