钢筋混凝土构件试验的动态数值模拟方法

DYNAMIC NUMERICAL SIMULATION FOR REINFORCED CONCRETE COMPONENT TESTS

本文提供由计算机图形仿真系统构成的模拟试验环境．其主要特色是：１．采用裂纹扩展的分形弯折模型描述裂纹的动态扩展，裂纹位置采用随机处理技术，使单元裂纹更接近实际；２．采用动画显示技术，模拟钢筋混凝土构件从开始加载到变形破坏的试验全过程；３．用户可以根据需要选取任意截面，显示该截面的应力应变曲线．

This paper presents a computer simulated test system for reinforced concrete component tests,which can 1.simulate the initiation and development of cracks with a fractal kinked model to follow the development of cracks dynamically; 2.identify the position of cracks with the random treatment technique which makes the unit cracks more real; 3.by means of a series of graph-showing techniques,such as animated cartoons,blinks etc.,simulate the testing process for reinforced concrete components with concentrated loads from its beginning to the deformation and destruction, and that,to the most possible extent,present a vivid simulation of actual tests conducted in laboratories; 4.allow users to display the curves of stress and strain at any selected section.