FRACTURE-RESISTANCE DETERMINATION OF FRESH-WATER ICE USING A CHEVRON-NOTCHED TENSION SPECIMEN

Authors
STEHN LM DEFRANCO SJ DEMPSEY JP
Citation
Lm. Stehn et al., FRACTURE-RESISTANCE DETERMINATION OF FRESH-WATER ICE USING A CHEVRON-NOTCHED TENSION SPECIMEN, International journal of fracture, 65(4), 1994, pp. 313-328
Citations number
31
Categorie Soggetti
Mechanics
Journal title
International journal of fracture → ACNP
ISSN journal
03769429
Volume
65
Issue
4
Year of publication
1994
Pages
313 - 328
Database
ISI
SICI code
0376-9429(1994)65:4<313:FDOFIU>2.0.ZU;2-2
Abstract
Crack growth resistance (R-curve behavior) measurements on large grain ed S1 type freshwater ice were conducted in the Ice Mechanics Research Laboratory at Clarkson University. To overcome previous difficulties in obtaining stable cracking in freshwater ice, a new crack geometry w as developed. The short rod Chevron Notched Tension (CNT) specimen was found to be extremely favorable in the sense of promoting stable, sti ck-slip, crack growth over a large portion of the uncracked ligament. A negative fracture resistance K(R)-curve was evaluated for this ice a t - 16-degrees-C.