ETD system

Electronic theses and dissertations repository

 

Tesi etd-05152015-095319


Thesis type
Tesi di laurea magistrale
Author
BRUNO, ALESSANDRO
URN
etd-05152015-095319
Title
Brazed T-joints in Centrifugal Compressor Impellers: Failure Criteria Identification, Test Design and Analysis
Struttura
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA AEROSPAZIALE
Commissione
relatore Ing. Rizzo, Emanuele
relatore Prof. Frediani, Aldo
Parole chiave
  • T-Joint
  • brazed
  • brazing
  • Impeller
  • joint
  • failure
  • criteria
  • custom
  • necking
  • tensile
Data inizio appello
16/06/2015;
Consultabilità
parziale
Data di rilascio
16/06/2018
Riassunto analitico
Shrouded impellers of radial centrifugal compressors can be fabricated by means of brazing of an hub with integral blades to the shroud. This thesis work deals with the static, short-timed strength of brazed T-Joints. A failure criteria is identified through the analysis of experimental data available in the techinical literature. The elastic plastic proprieties of the braze layer are then investigated observing their effects on the necking process of a butt-brazed tensile test specimen. Custom tests re-creating the geometry and some loading conditions of the actual joint are then proposed and analyzed.
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