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Spring back behaviour of hole expansion with various punch movement and positions.
University West, Department of Engineering Science.
2011 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

A methodology for making a spring back behaviour of hole expansion in gas tank. Work is initiated for SAAb automobile and the geometry of model is created by using the software’s called Unigraphics and hyper mesh and secondly the simulation of the model is done in Ls-dyna to know the spring back behaviour of hole with various depth and positions of the punch. The yield strength of the element and stress, strain distribution and different radius of the blank are used to reduce the cracks at the lower edge of the blank. Steel material is used and the thickness of the material (0.229mm). The simulation of the work includes loading of punch and its displacement. This study demonstrates the efficiency of the model to simulate the hole expansion and better understanding of the expansion of radius and spring back angle.

Place, publisher, year, edition, pages
2011. , 25 p.
Keyword [en]
Angles, Displacement, Mesh, Radius, Sheet metal, Stress, Strain, Spring back, Thickness
URN: urn:nbn:se:hv:diva-3321OAI: diva2:415131
Subject / course
Mechanical engineering
2011-05-04, 15:03 (English)
Measurement of spring back behaviour
Available from: 2011-06-07 Created: 2011-05-05 Last updated: 2011-06-07Bibliographically approved

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