Fracture toughness tests on Brazilian discs of Ankara andesite.

Şener, Sinem


Fracture resistance of Class II approximal slot restorations
Yaman, SD; Yetmez, M; Turkoz, E; Akkas, N (Elsevier BV, 2000-09-01)
Statement of problem. Determination of the Fracture resistance of various restorative materials in Class II approximal slot restorations has not been studied.
Fracture analysis of spun-cast concrete poles using the phase-field method
Azim Azary, Ali; Göktepe, Serdar; Department of Civil Engineering (2017)
Shrinkage is an important type of deformation in hardening concrete, which happens mainly in the cement paste and may cause significant damage if restrained. Spun-cast concrete poles are among structural members that are prone to this type of damage if not fabricated properly. They are used extensively in structures such as columns, piles, and utility poles to name a few. In this thesis, we study the differential shrinkage-induced cracking in spun-cast members computationally using the Phase Field Method wi...
Fracture analysis of welded connections
Yetgin, Ali; Kadıoğlu, Fevzi Suat; Department of Mechanical Engineering (2013)
The main objective of this thesis is to evaluate structural integrity of a multi barrel launcher system on fracture mechanics basis by using finite element method. A global finite element model that includes necessary kinematic and elastic connections is built. Dynamic firing forces are applied on global finite element model and general structural response is obtained. Sub modeling method is used in order to perform crack analysis. Since size of global model is too large to include solid crack elements whic...
Fracture mechanical behaviour of visco-elastic materials: application to the so-called dwell-effect
NAESER, Bastian; KALISKE, Michael; Dal, Hüsnü; NETZKER, Christiane (Wiley, 2009-08-01)
The material force approach is an efficient, elegant, and accepted means to compute the J-integral as a fracture mechanical parameter for elastic and inelastic materials. With the formulation of a multiplicative split of the deformation gradient at hand, rate-dependent (visco-elastic) materials described for example by the physically based Bergstrom-Boyce model can be investigated. For these investigations, the so-called material volume forces have to be computed in order to separate the driving forces acti...
Fracture and fatigue crack growth characterization of conventional and head hardened railway rail steels
Motameni Tabatabaei, Ali; Gürbüz, Rıza; Tur, Kazım; Department of Metallurgical and Materials Engineering (2014)
Fatigue crack growth behaviors of rail R260 and rail R350 HT in head, web and foot region of the rail have been investigated. Crack propagation at these three regions were compared. Furthermore, Fracture toughness (KIC) values in the three region of the rail R260 and R350 HT were calculated. Compact shear specimens were machined from the web of the rail in the longitudinal direction to conduct KIIC fracture toughness of the rail R260. A special loading frame manufactured for KIIC testing. Fractographic anal...
Citation Formats
S. Şener, “Fracture toughness tests on Brazilian discs of Ankara andesite.,” M.S. - Master of Science, Middle East Technical University, 2002.