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Record #112418:
- #112418
Main publication details
MARC recordCrack-fabrication techniques and their effects on the fracture toughness and CTOD for fresh-water columnar ice / Y. Wei, S.J. DeFranco, J.P. Dempsey.
| Title: | Crack-fabrication techniques and their effects on the fracture toughness and CTOD for fresh-water columnar ice / Y. Wei, S.J. DeFranco, J.P. Dempsey. |
| Author(s): | Wei, Y. DeFranco, S. J. Dempsey, J. P. |
| Date: | 1991. |
| In: | Journal of Glaciology. (1991.), Vol. 37(126) (1991) |
| Abstract: | Effects of notch acuity (crack-tip sharpness) on fracture and toughness of S2 ice were investigated using six groups of single-edge-notched-bend specimens with different crack (or notch) root radii fabricated by six methods. Mean value and standard deviations of apparent fracture-toughness values of specimens with blunt notches were significantly higher than those with sharp cracks. Results provide estimate of required notch acuity for fracture-toughness testing. Crack-tip-opening-displacement (CTOD) measured in this study indicates existence of microplastic deformation in vicinity of crack tip at initiation of unstable fracture. |
| Notes: | Journal of Glaciology. Vol. 37(126) :270-280 (1991). |
| Keywords: | 551.32 -- Glaciology. 551.322 -- Ice and snow. 551.326 -- Floating ice. 539.42 -- Ice, tensile strength. E4 -- Glaciology: physics and chemistry of ice. |
| SPRI record no.: | 112418 |
LDR 01549naa#a2200000#a#4500 001 SPRI-112418 005 20230323133511.0 007 ta 008 230323s1991####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-112418 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aWei, Y. 245 10 ‡aCrack-fabrication techniques and their effects on the fracture toughness and CTOD for fresh-water columnar ice /‡cY. Wei, S.J. DeFranco, J.P. Dempsey. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1991. 300 ## ‡ap. 270-280 :‡bill., diags., table. 500 ## ‡aJournal of Glaciology. Vol. 37(126) :270-280 (1991). 520 3# ‡aEffects of notch acuity (crack-tip sharpness) on fracture and toughness of S2 ice were investigated using six groups of single-edge-notched-bend specimens with different crack (or notch) root radii fabricated by six methods. Mean value and standard deviations of apparent fracture-toughness values of specimens with blunt notches were significantly higher than those with sharp cracks. Results provide estimate of required notch acuity for fracture-toughness testing. Crack-tip-opening-displacement (CTOD) measured in this study indicates existence of microplastic deformation in vicinity of crack tip at initiation of unstable fracture. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.322 -- Ice and snow.‡2udc 650 07 ‡a551.326 -- Floating ice.‡2udc 650 07 ‡a539.42 -- Ice, tensile strength.‡2udc 650 07 ‡aE4 -- Glaciology: physics and chemistry of ice.‡2local 700 1# ‡aDeFranco, S. J. 700 1# ‡aDempsey, J. P. 773 0# ‡7nnas ‡tJournal of Glaciology. ‡gVol. 37(126) (1991) ‡wSPRI-20534 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20230323