Analysis of Composite pressure vessel with Semi-Geodesic winding
In this training package, after introducing the goals, composite materials are introduced and categorized, and while stating the advantages of using these materials compared to other materials, the stress-strain curve of these materials is explained, and its application in various industries, including automotive, aerospace and subsea is mentioned. After that, the manufacturing methods of composite materials are briefly introduced, and finally, the stress-strain relationships of composite materials are presented. After that, the method of winding in the production of composite pressure vessel was introduced, and the types of winding machines and the production process were introduced. After that, different torsion patterns are introduced, and the equations of geodesic, semi-geodesic, isotensoid and planar winding patterns are presented. In the following, different theories of failure are explained, and Puck failure theory is introduced and selected as the best criterion to identify the failure initiation. In the following, the equations of this criterion are extracted.
Finally, the composite pressure vessel with semi-geodesic winding patterns are simulated in Anaqus finite element software. In the simulation, programming in Python language is used for more accuracy in modeling the angle and thickness changes. In this chapter, the effect of the friction parameter between the mandrel and fibers during winding and the elliptical aspect ratio of the mandrel on the strength of the composite pressure vessel has been investigated, and semi-geodesic winding with optimal aspect ratio and friction has been selected as the best pressure reservoir. After that, the written subroutine to identify the failure initiation was verified according to Puck’s equations, and the failure of the optimal pressure tank was analyzed with this criterion. This training package includes UMAT subroutine with Fortran language to identify progressive Puck failure and Python scripting for automatic modeling.
You can access files, including software files, subroutines and scripting, immediately after purchase. In addition, the video tutorials will be available on your dashboard soon.