Analytical model for planar tube hydroforming: Prediction of formed shape, corner fill, wall thinning, and forming pressure

作者：Yang Chen; Ngaile Gracious^*

来源：International Journal of Mechanical Sciences, 2008, 50(8): 1263-1279.

DOI：10.1016/j.ijmecsci.2008.05.006

• tube hydroforming
• closed-form solution
• finite element

An analytical model for planar tube hydroforming based on deformation theory has been developed. This analytical model can be used to predict hydroformed shape, corner fill, wall thinning, and forming pressure. As the model is based on a mechanistic approach with bending effects included, local strain and stress distribution across the wall thickness can be determined. This includes strain and stress distributions for the outer layer, inside layer, and middle layer. The model is validated using finite element analysis and tube hydroforming experiments on irregular triangular, irregular quadrilateral, and pentagonal hydroformed shapes.

• 出版日期2008-8