M. Anis

TL;DR: In this paper, a semi-destructive hole drilling experimental technique has been adopted for analyzing the stresses in spiral welded pipe and the distribution of residual stresses is calculated through different mathematical procedures, such as uniform method, power series method and integral method.

TL;DR: In this paper, a finite element model of the tube array is presented, where each tube is modeled by a set of finite tube elements. And the interaction between tubes in the bundle is represented by fluidelastic coupling forces, which are defined in terms of the multidegree-of-freedom elastodynamic behavior of each tube.

TL;DR: In this article, the modal characteristics of an actual multi-impeller rotor-bearing system with complicated geometry are estimated and verified using two modeling schemes, one based on a developed finite element elastodynamic model that accounts for gyroscopic effects, torsional-bending inertia coupling, internal material damping, shear and anisotropic bearings.

TL;DR: In this paper, statistical analysis and linear regression modeling were used to study the effect of several structural, material and welding parameters on ring splitting test opening for double submerged spiral-welded pipes.

TL;DR: In this article, the thickness of a non-pressure-containing repair sleeve was optimized by refining the existing design practice using finite element analysis and finite element modeling. But the results of the optimization were limited to the case of a single repair sleeve.