期刊
THIN-WALLED STRUCTURES
卷 137, 期 -, 页码 527-540出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2019.01.008
关键词
Tapered beams; Thin-walled hollow sections; Analytical solution; Box girder; Conical beam
资金
- Innovation Fund Denmark (IFD) [5189-00210B]
Tapered beams are widely employed in efficient flexure dominated structures. In this paper, analytical expressions are derived for the six Cauchy stress components in untwisted, straight, thin-walled beams with rectangular and circular cross sections characterised by constant taper and subjected to three cross-section forces. These expressions pertain to homogeneous, isotropic, linear elastic materials and small strains. In fact, taper not only alters stress magnitudes and distributions but also evokes stress components, which are zero in prismatic beams. A parametric study shows that increasing taper decreases the von Mises stress based fatigue life, suggesting that step-wise prismatic approximations entail non-conservative designs.
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