ANALYSIS OF COMPOSITE BEAM, HAVING INITIAL GEOMETRIC IMPERFECTION, SUBJECTED TO OFF-CENTER IMPACT

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GHATREH SAMANI KOBRA; FOTUHI ALI REZA; SHAFIEI ALIREZA

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Journal: Modares Mechanical Engineering Year:2017 | Volume:17 | Issue:5 Page(s): 185-192

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Title

ANALYSIS OF COMPOSITE BEAM, HAVING INITIAL GEOMETRIC IMPERFECTION, SUBJECTED TO OFF-CENTER IMPACT

Author(s)

GHATREH SAMANI KOBRA | FOTUHI ALI REZA | SHAFIEI ALIREZA | Issue Writer Certificate

Keywords

COMPOSITEQ2

BEAMQ2

IMPACTQ2

THIRD ORDER SHEAR DEFORMATION THEORYQ2

GENERALIZED DIFFERENTIAL QUADRATURE METHODQ2

Abstract

In this study, based on the third-order shear deformation theory the equations of motion are obtained to analyze the deformation of a long and slender COMPOSITE BEAM. The BEAM has initial geometric imperfection and is subjected to IMPACT load. The IMPACT procedures are applied by rigid body with a specific speed, off-center and at a certain distance from the BEAM's surface. Hamilton’s principle and the von-Karman nonlinear strain-displacement relationship are used to obtain the equations of motion that are based on displacement and in a set of coupled nonlinear partial differential equations in dynamic mode. The GENERALIZED DIFFERENTIAL QUADRATURE METHOD (GDQM) is used to discretize the obtained equations and convert them into a set of ordinary differential equations. Newton-Raphson iterative scheme is employed to solve the resulting system of nonlinear algebraic equations. Then, by solving the equations of the system, the effects of initial geometric imperfection on the BEAM’s deflection have been studied. Also, the effects of mass and the initial velocity of the IMPACTor on the BEAM’s deformation are investigated. The results of this research show that an increase in the amount of the initial velocity and mass of the IMPACTor entail an increase in the BEAM deformation.

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APA: Copy

GHATREH SAMANI, KOBRA, FOTUHI, ALI REZA, & SHAFIEI, ALIREZA. (2017). ANALYSIS OF COMPOSITE BEAM, HAVING INITIAL GEOMETRIC IMPERFECTION, SUBJECTED TO OFF-CENTER IMPACT. MODARES MECHANICAL ENGINEERING, 17(5 ), 185-192. SID. https://sid.ir/paper/179185/en

Vancouver: Copy

GHATREH SAMANI KOBRA, FOTUHI ALI REZA, SHAFIEI ALIREZA. ANALYSIS OF COMPOSITE BEAM, HAVING INITIAL GEOMETRIC IMPERFECTION, SUBJECTED TO OFF-CENTER IMPACT. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(5 ):185-192. Available from: https://sid.ir/paper/179185/en

IEEE: Copy

KOBRA GHATREH SAMANI, ALI REZA FOTUHI, and ALIREZA SHAFIEI, “ANALYSIS OF COMPOSITE BEAM, HAVING INITIAL GEOMETRIC IMPERFECTION, SUBJECTED TO OFF-CENTER IMPACT,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 5 , pp. 185–192, 2017, [Online]. Available: https://sid.ir/paper/179185/en

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