Bending collapse of folded tubes
Bending collapse of folded tubes
复制标题
折叠管的弯曲塌陷
DOI：
10.1016/j.ijmecsci.2016.07.016
复制
发表时间：
2016
影响因子：
7.3
通讯作者：
Ren Weijie
中科院分区：
文献类型：
--
作者：
Zhang Xiong;Zhang Hui;Ren Weijie
本文研究了一种三点弯曲折叠管的静、动态载荷。折叠管具有制备简单、成本低廉、截面形状灵活等优点，在工程领域具有广阔的应用前景。首先对折叠方管进行了实验研究，然后采用非线性有限元方法进行了数值分析。研究了载荷方向、速度、圆角半径和截面形状等因素对折叠管受力和变形响应的影响。对传统管和折流管进行了比较，结果表明折流管在某些方面优于传统管。此外，对折管的设计提出了一些建议。
Static and dynamic loading of a type of folded tubes under three-point bending are investigated in this work. The folded tubes are easily prepared, cost-effective and flexible in sectional shape, and hence quite promising to be applied widely in various engineering fields. Experimental investigations are firstly performed for folded square tubes and numerical analyses by nonlinear finite element methods are then carried out. The influences of various factors, including the load direction, velocity, fillet radius and sectional shape, on the force and deformation responses of the folded tubes are investigated. The comparison between traditional tubes and folded tubes is performed and shows that the folded tubes outperform the traditional tubes in some aspects. In addition, some suggestions for the design of folded tubes are presented.