İzzet Tarik Tandoğan- PhD Student
- PhD Student at Forschungszentrum Jülich
İzzet Tarik Tandoğan
- PhD Student
- PhD Student at Forschungszentrum Jülich
About
8
Publications
1,164
Reads
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85
Citations
Introduction
Fracture Mechanics, Computational Solid Mechanics, Cohesive Zone Modelling, Microstructure Evolution, Phasefield Modelling
Skills and Expertise
Current institution
Additional affiliations
October 2021 - present
May 2019 - September 2021
Education
September 2018 - September 2020
September 2013 - June 2018
Publications
Publications (8)
When a metal is loaded mechanically at high temperatures, i.e. above 300 $^o$C, its grain microstructure evolves due to multiple physical mechanisms. Two of which are the curvature-driven migration of the grain boundaries due to increased mobility, and the formation of subgrains due to severe plastic deformation. Similar phenomena are observed duri...
Gaining popularity after its coupling with the finite element method, cohesive zone mod-eling has been used extensively to model fracture, especially in delamination problems. Its constitutive relations, i.e. traction-separation laws, are mostly derived phenomenologically without considering the underlying physical mechanisms of crack initiation an...
The precipitation hardened, high strength aerospace alloys (e.g. Al 7000 alloy series) suffer from loss of fracture toughness due to the heat treatment leading to intergranular ductile fracture. Depending on the quenching and aging processes, large precipitates at the grain boundaries with wide precipitate free zones might develop. Therefore the gr...
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This paper studies the evolution of intergranular localization and stress concentration in three dimensional micron sized specimens through the Gurtin grain boundary model (J Mech Phys Solids 56:640–662, 2008) incorporated into a three dimensional higher-order strain gradient crystal plasticity framework (Yalçinkaya et al. in Int J Solids Struct 49...
In this paper, derivation and implementation of a micromechanically motivated traction separation law for cohesive zone modeling of ductile fracture is discussed. The formulation of the framework is based on the growth of pores in an array of representative volume elements where pores are idealized as cylinders. Two relations are derived under norm...
A new rate independent porous plasticity model is proposed for the modeling of ductile damage initiation due to void growth in metallic materials. The model is based on a simple yield description which includes two porosity functions that affect both deviatoric and hydrostatic stress evolution. The current version of the model predicts damage solel...
The recent developments in the production of miniaturized devices increases the demand on micro-components where the thickness ranges from tens to hundreds of microns. Various challenges, such as size effect and stress concentrations at the grain boundaries, arise due to the deformation heterogeneity observed at grain scale. Various metallic alloys...
