Spherical impression of thin elastic films on elastic-plastic substrates

被引:59
作者
Begley, MR [1 ]
Evans, AG [1 ]
Hutchinson, JW [1 ]
机构
[1] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0020-7683(98)00128-0
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The mechanical behavior of thin elastic films deposited onto structural alloys plays a critical role in determining film durability. This paper presents analysis of an impression experiment designed to evaluate some of the relevant properties of these films. The modeling provides quantitative strain information which can be used to estimate the fracture toughness of the film, the static friction coefficient of the surface and the constitutive behavior of the substrate. Results are presented for radial and circumferential strain distributions in the film relevant to the interpretation of cracking patterns. Additionally, load-displacement curves are provided that may be used to evaluate the plastic properties of the substrate. To facilitate estimates of the film cracking strain through correlation with experiments, the radial strain distributions are presented as functions of impression depth, yield strain and hardening exponent. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2773 / +
页数:15
相关论文
共 24 条
[1]   INTERFACIAL SHEAR-STRENGTH OF DIAMOND-LIKE CARBON COATINGS DEPOSITED ON METALS [J].
BENTZON, MD ;
BARHOLMHANSEN, C ;
HANSEN, JB .
DIAMOND AND RELATED MATERIALS, 1995, 4 (5-6) :787-790
[2]   FINITE-ELEMENT ANALYSIS OF CONE INDENTATION [J].
BHATTACHARYA, AK ;
NIX, WD .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1991, 27 (08) :1047-1058
[3]   AN ANALYSIS OF FULLY PLASTIC BRINELL INDENTATION [J].
BIWA, S ;
STORAKERS, B .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1995, 43 (08) :1303-1333
[4]   A COMPARATIVE-STUDY OF THE FRETTING WEAR OF HARD CARBON COATINGS [J].
BLANPAIN, B ;
CELIS, JP ;
ROOS, JR ;
EBBERINK, J ;
SMEETS, J .
THIN SOLID FILMS, 1993, 223 (01) :65-71
[5]   THE EFFECT OF INDENTER GEOMETRY ON THE ELASTIC RESPONSE TO INDENTATION [J].
BRISCOE, BJ ;
SEBASTIAN, KS ;
ADAMS, MJ .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1994, 27 (06) :1156-1162
[6]  
BULL SJ, 1995, JOM-J MIN MET MAT S, V47, P16, DOI 10.1007/BF03221143
[7]   TRIBOLOGY OF CARBON COATINGS - DLC, DIAMOND AND BEYOND [J].
BULL, SJ .
DIAMOND AND RELATED MATERIALS, 1995, 4 (5-6) :827-836
[8]   DLC MULTILAYER COATINGS FOR WEAR PROTECTION [J].
DENG, JG ;
BRAUN, M .
DIAMOND AND RELATED MATERIALS, 1995, 4 (07) :936-943
[9]  
FischerCripps AC, 1996, J AM CERAM SOC, V79, P2609, DOI 10.1111/j.1151-2916.1996.tb09023.x
[10]   TRIBOLOGICAL PROPERTIES OF DIAMOND-LIKE CARBON AND RELATED MATERIALS [J].
GRILL, A ;
PATEL, V .
DIAMOND AND RELATED MATERIALS, 1993, 2 (5-7) :597-605