Plasticity in fretting of coated substrates

被引：14

作者：

Begley, MR

Hutchinson, JW ^{[1
]}

机构：

[1] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA

来源：

ENGINEERING FRACTURE MECHANICS | 1999年 / 62卷 / 2-3期

关键词：

fretting; coated substrates; plasticity;

D O I：

10.1016/S0013-7944(99)00002-8

中图分类号：

O3 [力学];

学科分类号：

08 [工学]; 0801 [力学];

摘要：

A detailed analysis is performed of the plastic deformation in a metal substrate fretted by a flat-bottomed circular peg under steady normal load and cyclic tangential load. The substrate is coated with a thin layer of soft metal. Two limiting asymptotic problems are identified which characterize small scale yielding behavior in the substrate in the vicinity of the corners of the peg. Deformation within the plastic zone is characterized, including regions of elastic shakedown, steady reversed cyclic plastic straining, and strain ratchetting. Implications for nucleation of fretting cracks are discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：145 / 164

页数：20

共 14 条

[1]

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[2]

ATTIA MH, STP ASTM, V1159

[3]

High cycle fatigue in aircraft gas turbines - An industry perspective [J].