Prediction of burst pressure in multi stage tube hydroforming of aerospace alloys

DOIResolve DOI:
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
Proceedings titleVolume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy; Honors and Awards
Series titleASME Proceedings
ConferenceASME Turbo Expo 2015: Turbine Technical Conference and Exposition, June 15-19, 2015, Montreal Canada
AbstractBursting, an irreversible failure in tube hydroforming (THF), results mainly from the local plastic instabilities that occur when the biaxial stresses imparted during the process exceed the forming limit strains of the material. To predict the burst pressure, Oyane’s and Brozzo’s decoupled ductile fracture criteria were implemented as user material models in a dynamic nonlinear commercial 3D finite element (FE) software, Ls-Dyna. THF of a round to V-shape was selected as a generic representative of an aerospace component for the FE simulations and experimental trials. To validate the simulation results, THF experiments up to bursting were carried out using Inconel 718 (IN 718) tubes with a thickness of 0.9 mm to measure the internal pressures during the process. When comparing the experimental and simulation results, the burst pressure predicated based on Oyane’s decoupled damage criterion was found to agree better with the measured data for IN 718 than Brozzo’s fracture criterion.
Publication date
PublisherAmerican Society of Mechanical Engineers
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number21276099
Export citationExport as RIS
Report a correctionReport a correction
Record identifier909dd202-53df-436d-a6d1-77d4c8966bf2
Record created2015-09-23
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)