شماره ركورد كنفرانس :
3770
عنوان مقاله :
Investigation of Mixed Mode Fracture in Cracked Brazilian Disk Specimen under Compressive Mode I Loading
پديدآورندگان :
Ayatollahi M.R. m.ayat@iust.ac.ir Fatigue and Fracture Research Laboratory Center of Excellence in Experimental Solid Mechanics and Dynamics School of Mechanical Engineering Iran University of Science and Technology Narmak 16846 , Bahrami B. Fatigue and Fracture Research Laboratory Center of Excellence in Experimental Solid Mechanics and Dynamics School of Mechanical Engineering Iran University of Science and Technology Narmak 16846 , Torabi A.R. Fracture Research Laboratory Faculty of New Science and Technologies University of Tehran P.O. Box 14395-1561 Tehran Iran
كليدواژه :
Brittle Fracture , Brazilian Disk Specimen , Mixed Mode Loading , Negative Mode І.
عنوان كنفرانس :
چهارمين كنفرانس بين المللي دو سالانه مكانيك جامدات تجربي
چكيده فارسي :
The centrally cracked Brazilian disc (CCBD) specimen has been used
frequently in the literature for investigating mixed mode I–II fracture in brittle
materials. In the past researches, mode I loading was just related to the positive
values of KI which leads to tensile tangential stresses in the crack bisector line.
In this research, the CCBD specimen is used for investigating the behavior of
cracked components under compressive loading conditions. It is shown by
means of finite element analysis that although the crack bisector line is under
compressive loading, one side of the crack tip still sustains tensile stresses.
Several experiments have been done on the specimens in different loading
angles under negative KI conditions and the experimental values of fracture
load and fracture initiation angle are reported.
