PSI - Issue 2_A

Uğur Yolum et al. / Procedia Structural Integrity 2 (2016) 3713 – 3720 Yolum et al./ Structural Integrity Procedia 00 (2016) 000–000

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CT specimens with and without holes are analyzed using PDIFEA. The solutions of CT specimens are validated by comparing load vs CMOD curves with the ones from literature. Based on CT results, it can be concluded that holes behind the crack tip reduces the load carrying capacity of the specimens. It can also be noted that, holes in front of the crack tip has no influence on the load carrying capacity by comparing CT specimens with 4 and 8 holes. Based on those results, it can be indicated that PDIFEA with proposed constitutive two-dimensional is capable of capturing ductile damage in CT. PDIFEA approach is also validated with the results in the open literature. Acknowledgement This research is supported by TÜBİTAK (The Scientific and Technological Research Council of Turkey), under award MAG 112M891. The authors also would like to thank Dr. E. Madenci of University of Arizona and Dr. E. Oterkus of Universty of Stratchlyde for their contribution to this study. 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