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contributor authorSurajit Dey
contributor authorRavi Kiran
contributor authorChad Ulven
date accessioned2024-04-27T22:58:30Z
date available2024-04-27T22:58:30Z
date issued2024/02/01
identifier other10.1061-JMCEE7.MTENG-16698.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4297962
description abstractThe present study aims to characterize the microvoid sizes and their statistical distribution at the instance of fracture from the fracture surface of steel specimens. To this end, uniaxial tensile tests are conducted on circumferentially notched specimens made of 17-4 PH stainless steel and ASTM A992 high-strength structural steel. The fracture surfaces of the steel test specimens are studied using a digital microscope to quantify the statistical microvoid size distribution. Furthermore, the evaluated microvoid sizes of different fracture locations are mapped with the stress and strain fields. Finally, based on the experimentally evaluated microvoid sizes, an uncoupled fracture model was adopted to predict the fracture displacement and location of ductile fracture initiation in the fractured specimens. The fracture displacements predicted using the calibrated uncoupled fracture model are within the acceptable limit. The fracture initiation locations coincided with the peak strain-averaged stress triaxiality in the fracture specimens.
publisherASCE
titleExperimental Evaluation of Microvoid Characteristics and Relationship with Stress and Strain for Ductile Fracture
typeJournal Article
journal volume36
journal issue2
journal titleJournal of Materials in Civil Engineering
identifier doi10.1061/JMCEE7.MTENG-16698
journal fristpage04023573-1
journal lastpage04023573-21
page21
treeJournal of Materials in Civil Engineering:;2024:;Volume ( 036 ):;issue: 002
contenttypeFulltext


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