There is no generally accepted ductile fracture criterion by the fracture mechanics community. As a result of the comparison of various ductile fracture criteria proposed in the literature, Maximum Shear Stress (MSS) criterion has been observed to be the most advantageous criterion with respect to the number of calibrated parameters and the accuracy of the model. Nevertheless, recently developed Karr-Akçay Energy Balance (KAEB) criterion was not evaluated in these studies. Therefore, in this study, KAEB criterion and MSS criterion are compared, and the advantages and disadvantages of both criteria are discussed. One of the fundamental shortcomings of MSS criterion is that the criterion is based on Lode angle/parameter only. In contrast, KAEB criterion contains the stress triaxiality and Lode angle/parameter dependence inherently. Both criteria, however, require only one calibration parameter. In this study, KAEB criterion is observed to be more advantageous compared to MSS criterion with respect to the number of calibrated parameters and the accuracy of the model.
|Yayımlanma Tarihi||2020 Mart 8(1)|
|Bölüm||Araştırma Makalesi \ Research Makaleler|
: 19 Mart 2019
|APA||AKCAY, F . (2020). İZOTROPİK MALZEMELERİN SÜNEK KIRILMA GEZENEKLERİNİN TAYİNİ. Mühendislik Bilimleri ve Tasarım Dergisi , 8 (1) , 65-73 . DOI: 10.21923/jesd.542059|