Experimental investigation of oscillation of loads in ice high-pressure zones, part 1: Single indentor system
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- 作者：Brian J. O'Rourkea ; brian.orourke@mun.ca" class="auth_mail" title="E-mail the corresponding author ; Ian J. Jordaana ; Rocky S. Taylora ; Arne Gü ; rtnerb
- 关键词：Ice crushing ; Damage ; Fracture ; High-pressure zone ; Ice-induced vibration ; Structural compliance
- 刊名：Cold Regions Science and Technology
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：124
- 期：Complete
- 页码：25-39
- 全文大小：4738 K
文摘
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Indentation tests were conducted on confined ice using a spherical-cap indentor.
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The speed of ice and flexibility of indentation system were varied among tests.
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The regular sawtooth loading that occurred may be seen as self-sustained oscillation.
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Thin sections of tested samples show damage (microstructural change) in all cases.
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Energy expended per penetration depth during loading and unloading are about equal.