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Record #112826:

Observations of the failure process in ice blocks crushed by a flat indentor / Lennart A. Fransson, Thomas Olofsson, Jim Sandkvist.

Title: Observations of the failure process in ice blocks crushed by a flat indentor / Lennart A. Fransson, Thomas Olofsson, Jim Sandkvist.
Author(s): Fransson, Lennart A.
Olofsson, Thomas.
Sandkvist, Jim.
Date: 1991.
Publisher: St. John's, Newfoundland: Memorial University of Newfoundland, Ocean Engineering Research Centre
In: POAC'91 : the 11th International Conference on Port and Ocean Engineering under Arctic Conditions, September 24-28, 1991, St. John's, Canada. (1991.), Vol.1.
Abstract: Ice-failure mechanism close to contact has been studied in series of small-scale crushing tests at high indentation velocities. Iterative numerical model based on successive shear failure was used to predict crushing behaviour. Concludes that contact consists of narrow line where melting point is attained at high indentation rates. Indications are that ratio of shear strength to contact pressure controls fractal behaviour of ice crushing. Contact pressure and shear strength are related to indentation velocity. As indentation rate increases, ratio of shear strength to contact pressure decreases, causing finer fragmentation of crushed ice.
Notes:

In: POAC'91 : the 11th International Conference on Port and Ocean Engineering under Arctic Conditions, September 24-28, 1991, St. John's, Canada. Vol.1. / D.B. Muggeridge, D.B. Colbourne, H.M. Muggeridge, eds.

Keywords: 551.32 -- Glaciology.
551.322 -- Ice and snow.
539.42 -- Ice, tensile strength.
E4 -- Glaciology: physics and chemistry of ice.
SPRI record no.: 112826

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100 1# ‡aFransson, Lennart A.
245 10 ‡aObservations of the failure process in ice blocks crushed by a flat indentor /‡cLennart A. Fransson, Thomas Olofsson, Jim Sandkvist.
260 ## ‡aSt. John's, Newfoundland :‡bMemorial University of Newfoundland, Ocean Engineering Research Centre,‡c1991.
300 ## ‡ap. 501-514 :‡bill., diags., tables.
500 ## ‡aIn: POAC'91 : the 11th International Conference on Port and Ocean Engineering under Arctic Conditions, September 24-28, 1991, St. John's, Canada. Vol.1. / D.B. Muggeridge, D.B. Colbourne, H.M. Muggeridge, eds.
520 3# ‡aIce-failure mechanism close to contact has been studied in series of small-scale crushing tests at high indentation velocities. Iterative numerical model based on successive shear failure was used to predict crushing behaviour. Concludes that contact consists of narrow line where melting point is attained at high indentation rates. Indications are that ratio of shear strength to contact pressure controls fractal behaviour of ice crushing. Contact pressure and shear strength are related to indentation velocity. As indentation rate increases, ratio of shear strength to contact pressure decreases, causing finer fragmentation of crushed ice.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.322 -- Ice and snow.‡2udc
650 07 ‡a539.42 -- Ice, tensile strength.‡2udc
650 07 ‡aE4 -- Glaciology: physics and chemistry of ice.‡2local
700 1# ‡aOlofsson, Thomas.
700 1# ‡aSandkvist, Jim.
773 0# ‡7nnam ‡aD.B. Muggeridge, D.B. Colbourne, H.M. Muggeridge, eds. ‡tPOAC'91 : the 11th International Conference on Port and Ocean Engineering under Arctic Conditions, September 24-28, 1991, St. John's, Canada. ‡dSt. John's, Newfoundland : Memorial University of Newfoundland, Ocean Engineering Research Centre, 1991. ‡gVol.1. ‡wSPRI-112387
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