DETERMINATION OF THE FRACTAL DIMENSION OF THE IRREGULAR, COMPRESSIVE STRESS-STRAIN RELATIONSHIPS OF BRITTLE, CRUMBLY PARTICULATES

被引:19
作者
PELEG, M
NORMAND, MD
机构
[1] Department of Food Science, Chenoweth Laboratory, University of Massachusetts, Amherst, Massachusetts
关键词
D O I
10.1002/ppsc.19930100603
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The apparent fractal dimension of normalized rugged compressive force-deformation curves of two types of brittle particulates was determined using the blanket algorithm. Although the shape of the original force-deformation relationships of the individual specimens was irreproducible, the apparent fractal dimension of the normalized data was fairly constant and characteristic of the material. The applicability of the algorithm and the validity of the results were tested with computer simulated relationships generated with a set of Weierstrass functions whose fractal dimension was known a-priori. It is demonstrated that as long as the resolution along the two axes is the same, the fractal dimension so calculated provides an absolute rather than a relative measure of the relationship's jaggedness.
引用
收藏
页码:301 / 307
页数:7
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