Title: Dynamic analysis in three layered conical shells utilising numerical methods

Authors: Subrata Kumar Panda; Reza Kolahchi

Addresses: Department of Mechanical Engineering, NIT Rourkela, Rourkela, 769008, Odisha, India ' Department of Mechanical Engineering, Islamic Azad University, Jasb Branch, Jasb, Iran

Abstract: In this work, dynamic composite analysis truncated sandwich conical shells (STCS) with different boundary conditions under low velocity impact was investigated analytically, according higher order sandwich panel theory. Impact occurred at the top face sheet and the contact force history is predicted using two solution models calculated applying principal of Hamilton by considering the displacement continuity conditions between the layers. For obtaining the displacement and contact force histories, the differential quadrature method (DQM) is utilised. In this investigation, the effects of layer lamina number, cone semi vertex angle, boundary conditions and impact velocity on the impact response are studied.

Keywords: low velocity impact; truncated sandwich conical shells; STCS; differential quadrature method; DQM; Hertzian contact law; complete model.

DOI: 10.1504/IJHM.2018.097292

International Journal of Hydromechatronics, 2018 Vol.1 No.4, pp.427 - 446

Received: 19 Sep 2018
Accepted: 08 Oct 2018
Published online: 10 Jan 2019 *

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