Author(s): Prof. Dr. Hani Aziz Ameen, Assist. Prof. Dr. Kadhim Mijbel Mashloosh, Rusul Abdel Kareem Salman
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Volume. 5 - Issue. 07 , July - 2016
In this study a novel analytical model to analyze the stress state and wrinkling in the X-branch bulging tube during the hydroforming process is presented using ANSYS LSdyna. The effect of applying load path on the forming process is considered and the deformation of the process was illustrated. It was shown that hydroforming to cause deformed tube effect by the loading path of internal pressure and axial feeding is existed. Two loading paths are investigated to observe its effect on the stress distribution and wrinkling. It can be concluded that the compressive stress in one dimension, deformed the tube element without thinning and tearing when the axial force is applied to the tube as well as the internal pressure. Also it's concluded that the load path 2 is more efficient than the load path 1, i.e. that the feed load is applied separately at the beginning of the bulging process to a certain value then the internal pressure is applied which is more efficient from applying ramp pressure with feed.
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