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The role of first non-singular stress terms in mixed mode brittle fracture of V-notched components: an experimental study
, Article Fatigue and Fracture of Engineering Materials and Structures ; Volume 40, Issue 4 , 2017 , Pages 623-641 ; 8756758X (ISSN) ; Saeidi Googarchin, H ; Aliha, M. R. M ; Sharif University of Technology
Blackwell Publishing Ltd
2017
Abstract
This paper investigates the effects of the first non-singular stress terms on the fracture assessment of sharp V-notches under mixed mode loading. First, numerical studies have been performed on a fracture test configuration called single V-notched ring (SVR) specimen. Then, the notch stress intensity factors as well as the coefficients of the first non-singular stress terms, which are vital parameters in brittle fracture of V-notched components, were calculated via a finite element over-deterministic algorithm for a wide range of loading and geometry conditions. The obtained results demonstrate that the SVR specimen is able to provide a complete range of mode mixities from pure mode I to...