Kou kouzou rombunshuu
Online ISSN : 1884-0329
Print ISSN : 1880-9928
ISSN-L : 1880-9928
EFFECTS ON WELD BEAD TOE SHAPE ON CRITICAL STATE FOR BRITTLE FRACTURE TRANSITION DURING EARTHQUAKES
Hiroshi TAMURAEiichi SASAKIHitoshi YAMADAHiroshi KATSUCHI
Author information
JOURNALS FREE ACCESS

2013 Volume 20 Issue 77 Pages 77_1-77_14

Details
Abstract

During the Northridge earthquake and the Kobe earthquake unexpected brittle fractures occurred in a number of steel structures. The brittle fracture during earthquakes initiates from a shallower initial crack than that of well-known brittle fractures. This study addresses the shallow crack tip stress field at brittle fracture transition. The crack tip stress field at the instant of brittle fracture is investigated based on the experiments and FE analyses which employed specimens with precrack on notch. As a result, it was confirmed that crack value of maximum principal stress, stress triaxiality and Weibull stress at shallow crack tip is affected by the notch shape and crack depth.

Information related to the author
© 2013 Japanese Society of Steel Construction
Next article
feedback
Top