Development of configurational forces during the injection of an elastic rod

被引：28

作者：

Bosi, F. ^{[1
]}

Misseroni, D. ^{[1
]}

Dal Corso, F. ^{[1
]}

Bigoni, D. ^{[1
]}

机构：

[1] Univ Trento, DICAM, Via Mesiano 77, I-38123 Trento, Italy

来源：

EXTREME MECHANICS LETTERS | 2015年 / 4卷

关键词：

Force reversal; Elastica; Variable length; Eshelbian mechanics;

D O I：

10.1016/j.eml.2015.04.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

When an inextensible elastic rod is 'injected' through a sliding sleeve against a fixed constraint, configurational forces are developed, deeply influencing the mechanical response. This effect, which is a consequence of the change in length of the portion of the rod included between the sliding sleeve and the fixed constraint, is theoretically demonstrated (via integration of the elastica) and experimentally validated on a proof-of-concept structure (displaying an interesting force reversal in the load/ deflection diagram), to provide conclusive evidence to mechanical phenomena relevant in several technologies, including guide wire for artery catheterization, or wellbore insertion of a steel pipe. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：83 / 88

页数：6

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