Transactions of Materials and Heat Treatment

Title：Theoretical Analysis of the Petal Sheet Deformation During Hydrobulging of the Polyhedrons

Authors： Harbin Institute of Technology Zhang shihong Wang zhongren Wang Tao and Wang Hongyi

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year,vol(issue):pagenumber：1991,16(5):16-20

Abstract：

In this paper the polygonal petal sheets of the polyhedrons during bulging are simplified according to the practical experiences of the hydrobulging of the polyhedrons, and a bulging model of the spherical circular diaphragm is given. And then according to the dedution of the circular locus theoretical calculation method and the oval locus theoretical calculation method, the strain formulae and the maximal thinning ratio formulae are given, the relation between the forming pressure and the strain and the theoretical formulae of the forming pressure are given. Finally, the theoretical results are compared with the experimental results, it is proved that they are in accordance very well.

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Reference：

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