AUXETIC POLYETHYLENE - THE EFFECT OF A NEGATIVE POISSON RATIO ON HARDNESS

被引：142

作者：

ALDERSON, KL

PICKLES, AP

NEALE, PJ

EVANS, KE

机构：

[1] Department of Materials Science and Engineering, The University of Liverpool, Liverpool, L69 3BX England

来源：

ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 07期

关键词：

D O I：

10.1016/0956-7151(94)90304-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent papers have described a particular form of ultra high molecular weight polyethylene (UHMWPE) which possesses a large negative Poisson's ratio (nu) because of its complex microstructure. Classical elasticity theory predicts that this should lead to enhancements in certain mechanical properties and this paper examines one such property-that of ball indentation resistance or hardness. The hardness of auxetic UHMWPE with a negative nu, compression moulded UHMWPE and a microporous form of UHMWPE with a positive nu was measured. It was found that the presence of a negative nu resulted in enhancements of the hardness by up to a factor of 2 over conventional UHMWPE.

引用

页码：2261 / 2266

页数：6

共 17 条

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