Experimental and finite element investigation of formability and failures in bi-layered tube hydroforming

A. G. Olabi, A. Alaswad

Research output: Contribution to journalArticle

13 Citations (Scopus)


Optimization of the operating conditions is one of the most significant studies in the hydroforming process, which affect the forming of successful components. In this work, a finite element model was established for bi-layered tube hydroforming process using ANSYS LS-DYNA pre-processor and LS-DYNA solver in order to predict the most efficient and acceptable operating condition for certain material properties and initial blank geometry.

Experiments were conducted to check the model validation and the resultant bulge height and thickness reduction were seen in good agreement with the numerical results. The major failure modes of the process were investigated. Different sets of loading paths (relations between axial feed and internal pressure) were tested and compared to each others. Applying internal pressure in advance of the axial pushing was found to give the best formability for the process.
Original languageEnglish
Pages (from-to)815-820
JournalAdvances in Engineering Software
Issue number10
Publication statusPublished - Oct 2011
Externally publishedYes


  • Multi-layered
  • Hydroforming
  • Optimization
  • Failure
  • Loading path
  • Finite element analysis

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