FRACTAL CRUSHING OF ICE AND BRITTLE SOLIDS

被引：79

作者：

PALMER, AC ^{[1
]}

SANDERSON, TJO ^{[1
]}

机构：

[1] BP INT LTD,LONDON EC2Y 9BU,ENGLAND

来源：

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1991年 / 433卷 / 1889期

关键词：

D O I：

10.1098/rspa.1991.0060

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A significant 'scale effect' is observed when sea ice forces on structures are measured at field scale: the force per unit contact area is not independent of area, but decreases with increasing area. Fragments of broken materials are found to have a fractal size distribution, with a fractal dimension close to 2.5 over a remarkably wide range of fragment size. The research described in this paper brings these two observations together, and shows that they can be explained by a simple model of crushing, which incorporates the relation between fragment size and splitting force predicted by linear elastic fracture mechanics. The model indicates a special role for the fractal dimension of 2.5, and predicts a relation between force and area, consistent with field observations.

引用

页码：469 / 477

页数：9

共 16 条

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Bennet J. G., 1936, J I FUEL, V10, P22

[2]

Bhat S, 1990, J OFFSHORE MECH ARCT, V112, P370

[3] RENORMALIZATION GROUP IN THEORY OF CRITICAL BEHAVIOR [J].