SHOCK WAVE ON FLUID-FILLED ORTHOTROPIC CROSS-PLY CYLINDRICAL STRCTURE SUBMERGED IN FLUID

سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 977

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شناسه ملی سند علمی:

ICOPMAS09_115

تاریخ نمایه سازی: 24 خرداد 1393

چکیده مقاله:

Multilayered, elastic circular cylinders and cylindrical shells are common elements in marine structural. As an impulse acts, the propagation of the mechanical disturbance with wave speedsmakes a multilayered cylinder respond immediately to the impulse at the place of wave incident.Wardlaw and Luton (2000) considered an explosion inside a fluid-filled cylindrical shell,focusing their study on the internal pressure fields and the dynamics of the shell [2]. Yin and Yuein 2002 , proposed an exact solution and approximate solution to determine the transient response of infinitely long multilayered cylinder under dynamic pressures on the boundaries.This approach is based on expansion of transient wave functions in a series of eigenfunctions [5].(2008), Savruk and coworkers proposed a new method based on finite difference just with respect to time, in order to dynamic solution of elastic hollow cylinders subjected to the surface dynamic forces [3]. One year later, Onyshko and Senyuk used this proposed method, todetermine the dynamic response of two layered cylinder under dynamic loading [4]. (2009), Chen and Lin investigate the elastic analysis for a cylinder made of FGMs. The problem is reduced to solve an ordinary differential equation numerically. The obtained result shows that theFGMs property has a significant influence to the stress distribution[6]. In this work was investigated the transient dynamic response of thick-walled orthotropiccross-ply cylindrical structure. Structure made of orthotropic material and fluid supposed ideal. Solving in time domain was accomplished by Laplace transformation. In this article the shock wave is supposed mechanical load and acting on outer surface of structure. Numerical results are presented for [0/90/0], [90/0/90], [0/90/0/90/0], [90/0/90/0/90], [0/90/0/90/0/90/0] and [0/90/0/90/0/90/0/90/0] stacking sequences.

نویسندگان

kamran daneshjoo

Professor, Mechanical Engineering Department Iran University of Science and Technology

majid bakhtiari

Graduate student Iran University of Science and Technology

mohammad rahimzadeh

Graduate student, Iran University of Science and Technology

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