Chengshuai Huang

Hydro-Burst Investigations in Large Diameter Tee-Joints

In order to reduce the tee-joints thickness and manufacturing cost, a series of large diameter and high-strength tee-joints are manufactured based on the equivalent strength design principles. The burst pressure of tee-joints is obtained directly by a series of burst tests. In addition, numerical simulations are carried out to evaluate the burst pressure capacity of a tee-joint. The influence of the fillet radius and the thickness of the branch are also discussed. The results of this paper may provide guidance in the design and manufacture of a tee joint.

Investigation on Axial Deformation of High Strain Line Pipe

A systematic investigation of the effect of material inhomogeneity on pipe buckling is presented in this paper. The material properties of the pipe were obtained by a series of tensile tests. Numerical simulations were carried out to evaluate the effect of material inhomogeneity on pipe buckling. Post-buckling behavior was also simulated. This paper also explains the mechanism of cracking.The authors show how pipe buckling can be caused by weakened sections, and how both internal pressure and the ratio of diameter to thickness can significantly affect pipe buckling.