期刊
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
卷 36, 期 3, 页码 307-326出版社
WILEY
DOI: 10.1002/nag.1008
关键词
scratch test; hardness; strength
资金
- MIT-OU GeoGenome Industry Consortium
In this paper we develop analytical solutions for scratch hardnessstrength relations for cohesive-frictional materials of the MohrCoulomb and DruckerPrager type. Based on the lower bound yield design approach, closed-form solutions are derived for frictionless scratch devices, and validated against computational upper bound and elastoplastic finite element solutions. The influence of friction at the bladematerial interface is also investigated, for which a simple computational optimization is proposed. Illustrated for scratch tests on cement paste, we show that the proposed solutions provide a convenient way to determine estimates of cohesion and friction parameters from scratch data, and may serve as a benchmark to identify the relevance of strength models for scratch test analysis. Copyright (C) 2011 John Wiley & Sons, Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据