摘要
本文针对钢筋在弯曲过程中的大变形及非线性的特点,运用有限元分析软件ANSYS/LS-DYNA建立了钢筋弯箍系统的有限元模型,对钢筋的弯曲过程进行了数值模拟,并分析了钢筋在不同时刻的弯曲应力变化情况。当钢筋弯曲角度接近于零时,钢筋产生的最大应力发生在与弯箍转套接触部位;随着时间的增大,与箍筋模接触部位的应力迅速增大,且应力最大值逐渐由钢筋的边缘部位向中心部位靠近。
Aimed at the large deformation and nonlinear characteristics of the steel bar in the bending process,the finite element model of the steel bar bending hoop system were established by using the finite element analysis software ANSYS/LS-DYNA.The process of the reinforcing steel bar bending was simulated and the bending stress changes of the steel bar in different time were analyzed.When the bending angle of the steel bar closed to zero,the biggest stress occurred in the contacting part of the steel bar and the bending hoop Teleflex.With the time increasing,the steel bar and stirrup mode of contacting part stress increased rapidly,and the maximum stress gradually neared from the edge of the steel bar to the center.
出处
《河北工程大学学报（自然科学版）》
CAS
2011年第2期30-32,37,共4页
Journal of Hebei University of Engineering:Natural Science Edition
