Jianxing Yu

TL;DR: In this article, the buckling performance of locally random corroded pipe was experimentally and numerically studied, which indicated that either the out-of-roundness imperfection shape n = 2 or n = 3 fits best with the measure data.

TL;DR: In this article, a 3D nonlinear finite element (Finite Element) FE model was established to systematically study the collapse pressure of random corroded pipe, and two constraints technique including surface-based tie constrain (SBTC) and shell-to-solid coupling (SSC) were implemented to take the complex geometry into account without the sacrifice of model accuracy while minimizing the computational cost.

TL;DR: In this article, the phase evolution within each weld was analyzed using thermodynamics calculation and electron back-scattered diffraction (EBSD), and it was found that the welded joints were mainly composed of martensite and ferrite phases.

TL;DR: In this article, the effects of local random pitting corrosions on the collapse pressure of a 2D ring under external pressure were assessed using a Python program in combination with the FE code ABAQUS.

TL;DR: In this article, a ring-truss theory was analytically established in a full-scale hyperbaric chamber in order to verify the analytical equation, and the comparison of propagation pressure between the current study and published model shows that for small diameter to thickness ratio, the ring truss model is the one that is closest to the actual situation.