Show simple item record

contributor authorRavi Kiran
contributor authorKapil Khandelwal
date accessioned2017-05-08T22:00:47Z
date available2017-05-08T22:00:47Z
date copyrightFebruary 2014
date issued2014
identifier other%28asce%29st%2E1943-541x%2E0000870.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/68765
description abstractThis study presents the results of experimental investigation and models for ductile fracture in the ASTM A992 structural steels subjected to high stress triaxiality. To this end, uniaxial tension tests on the notched tensile specimens are conducted, and subsequent scanning electron microscopy (SEM) studies are performed on the fractured surfaces. From this SEM analysis, the fracture initiation mechanism in ASTM A992 steels is found to be the ductile fracture; however, the fracture propagation mode can be either ductile or cleavage fracture. Nonlinear finite-element analysis of the notched specimens is carried out to obtain the stress triaxiality distributions, and the location of the peak stress triaxiality is found to be strongly correlated to the location of the ductile fracture initiation zones. Finally, two uncoupled ductile fracture prediction models, the void growth model (VGM) and the stress modified critical strain model (SMCS), are calibrated, and the model parameters are provided for A992 steels.
publisherAmerican Society of Civil Engineers
titleExperimental Studies and Models for Ductile Fracture in ASTM A992 Steels at High Triaxiality
typeJournal Paper
journal volume140
journal issue2
journal titleJournal of Structural Engineering
identifier doi10.1061/(ASCE)ST.1943-541X.0000828
treeJournal of Structural Engineering:;2014:;Volume ( 140 ):;issue: 002
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record