摘要
通过设计制作1 000 MPa级别高强钢岔管模型,并对其进行水压试验和爆破试验,布设观测点得到岔管的应力分布和变形情况;结合有限元法对岔管模型进行数值仿真计算,将计算值与试验观测值进行对比分析。试验结果表明:1 000 MPa级别高强钢材料性能好、安全裕度高,具有较高的结构适应性和超载能力;理论计算与试验观测的应力和变形拟合较好,有限元数值计算能够反映水压试验水平。
The 1 000 MPa high-strength steel bifurcated pipe model is designed and manufactured, and meanwhile, the water pressure test and blasting test of model are conducted to achieve the stress distribution and deformation data through arranged observation points. The FEM is also used to the numerical simulating ealeulation of bifurcated pipe model and the calculated results are compared with experimental values. The experimental results show that： （a） the 1000 MPa high-strength steel has excellent properties and high safety margin, as well as relatively high structure adaptability and overload capacity; and （b） the numerical calculation results are in good agreement with experimental results both on stress and deformation, and the results of finite element analysis are conformed to the results of experiments.
出处
《水力发电》
北大核心
2014年第3期85-89,共5页
Water Power
关键词
钢岔管
模型
水压试验
爆破试验
有限元法
应力分析
steel bifurcated pipe
model
water pressure teat
blasting test
FEM
stress analysis
