Micromechanically motivated cohesive zone formulation for ductile fracture



Micromechanical cohesive zone relations for ductile fracture
Yalçınkaya, Tuncay (Elsevier BV; 2016-06-24)
This paper addresses the derivation of a micromechanically motivated incremental mixed-mode traction separation law in the context of cohesive zone modeling of crack propagation in ductile metallic materials. The formulation is based on the growth of an array of pores idealized as cylinders which are considered as the representative volume elements. An upper bound solution is applied for the deformation of the representative volume element and different incremental traction-separation relations are obtained...
Micromechanical characterization of metallic glass — crystalline nanocomposite coatings
Abboud, Mohammad; Özerinç, Sezer; Kalay, Yunus Eren; Department of Micro and Nanotechnology (2018)
Amorphous/crystalline nanolayers provide an effective model system to study the mechanical behavior and size effects of metallic glasses and crystalline metals in confined geometries. They also provide an advantageous structure for improving the ductility of amorphous metals while maintaining their outstanding strength. Combination of high strength and ductility make these nanocomposites promising materials as wear resistant coatings. The structure-property relationship in Amorphous/Crystalline nanolayers c...
Micromechanical modeling of carbon nanotube – polymer composites
Taç, Vahidullah; Gürses, Ercan; Department of Aerospace Engineering (2018)
A micromechanics-based model is developed to simulate carbon nanotube – polymer nanocomposites and analyze its mechanical behavior. The nanocomposite is first divided into four distinct regions, or phases, based on mechanical behavior and density; the carbon nanotube, the interface, the interphase and the polymer. The finite element method was later used to combine the nanotube and interface phases into an effective fiber for better representation and incorporation of their roles and constitutive properties...
Micromechanical Aspects of Amorphous Plasticity Through a Strain Gradient Crystal Plasticity Framework
Demirci, Aytekin; Yalçınkaya, Tuncay; Sandfeld, Stefan (2019-08-22)
Microfluidic Methods in Janus Particle Synthesis
Saqib, Muhammad; Tran, Phong A.; Ercan, Batur; ERDEM, EMİNE YEGAN (2022-1-01)
Janus particles have been at the center of attention over the years due to their asymmetric nature that makes them superior in many ways to conventional monophase particles. Several techniques have been reported for the synthesis of Janus particles; however, microfluidic-based techniques are by far the most popular due to their versatility, rapid prototyping, low reagent consumption and superior control over reaction conditions. In this review, we will go through microfluidic-based Janus particle synthesis ...
Citation Formats
T. Yalçınkaya, “Micromechanically motivated cohesive zone formulation for ductile fracture,” 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/80989.