机构地区: 广州大学土木工程学院
出 处: 《混凝土》 2013年第2期12-16,20,共6页
摘 要: 归纳了混凝土动态拉伸试验中的应变率、湿度、钢纤维含量以及混凝土强度对试验结果的影响,对比了以上因素在SHPB和采用MTS试验机的试验中的影响程度,并介绍了HJC模型、RHT模型以及采用数值分析软件LS-DYNA、ABAQUS程序的模拟过程,指出了试验和模拟中不同模型功能上存在的缺陷和进一步研究需要克服的困难。为混凝土的动态拉伸及数值分析研究提供了参考。 Summarized the influence of strain rate, humidity, steel fiber content and the strength of concrete to the results of dynamic tensile experiments of concrete, contrast with the above factors to MTS and SHPB test, and introduced the HJC model, RHT model and the numerical analysis software LS-DYNA, ABAQUS during simulation of the program, and points out the defects in the experiment and simulation and difficulties of further research need to overcome.Provide reference for the numerical analysis and concrete dynamic tensile.
领 域: [建筑科学]