折线形蜂窝梁力学性能研究

RESEARCH ON MECHANICAL PROPERTIES OF FOLDED CASTELLATED BEAM

利用有限元软件ABAQUS建立了折线形蜂窝梁力学性能分析的有限元计算模型。基于经试验验证的有限元模型对扩张比、坡度、孔型、孔间距以及端孔至支座距离等参数对折线形蜂窝梁极限承载力及荷载-位移曲线的影响进行了比较,并确定了影响折线形蜂窝梁承载力的主要因素,提出了折线形蜂窝梁最大正应力处建议计算式。

The finite element model for mechanical properties analysis of folded castellated beams was established with ABAQUS.The influences of parameters such as expansion ratio,slope,hole type,hole spacing and the distance from end hole to base on the ultimate bearing capacity and load-displacement curve of folded castellated were compared.The main factors affecting the bearing capacity of the folded castellated beam were determined.A formula for calculating the maximum positive stress of a folded castellated beam was proposed.