On the shakedown analysis of nozzles using elasto-plastic FEA |
| |
| Affiliation: | 1. Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Trg I. B. Mažuranić 2, Slavonski Brod, Croatia;2. University of Maribor, Faculty of Mechanical Engineering, Smetanova 17, Maribor, Slovenia;1. Terra&AcquaTech Laboratory, University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy;2. Corrosion and Metallurgy Study Centre “Aldo Daccò”, University of Ferrara, Via G. Saragat 4A, 44122 Ferrara, Italy;3. ISTEC-CNR, Via Granarolo 64, 48018 Faenza, Italy;1. Xi’an Jiaotong University, China;2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China |
| |
| Abstract: | The performed shakedown calculations of a dished end with a nozzle in the knuckle region with varying internal pressure load, and two cylinder–cylinder intersections with constant moment load and varying internal pressure load are example cases for the application of the check against progressive plastic deformation as stated in the new European UFPV standard, Annex 5.B: “Direct route for design by analysis” (DBA). To calculate the shakedown limits, Melan's (lower bound) shakedown theorem is used. In this context, the usage of the deviatoric maps of stress states to obtain proper self-equilibrating stress fields is shown. Furthermore, some problems and corresponding possible solutions for performing the shakedown check using a finite element model with shell elements are stated and shown in the examples. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
