DYNAMIC ANALYSIS OF THE SANDWICH CURVED BEAMS WITH FLEXIBLE CORE IN THE STEADY STATE THERMAL CONDITION AND SUBJECTED TO RADIAL LOW-VELOCITY IMPACT

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MALEKZADEH FARD KERAMAT; SHOKROLLAHI SAEED; EBRAHIMZADEH EISA; POURMOAYED ALI REZA

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:9 Page(s): 113-123

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Title

DYNAMIC ANALYSIS OF THE SANDWICH CURVED BEAMS WITH FLEXIBLE CORE IN THE STEADY STATE THERMAL CONDITION AND SUBJECTED TO RADIAL LOW-VELOCITY IMPACT

Author(s)

MALEKZADEH FARD KERAMAT | SHOKROLLAHI SAEED | EBRAHIMZADEH EISA | POURMOAYED ALI REZA | Issue Writer Certificate

Keywords

LOW-VELOCITY IMPACT CURVED SANDWICH BEAM ENVIRONMENT TEMPERATURE HIGH-ORDER THEORYQ2

Abstract

In this paper, the behavior of curved sandwich beam with a soft flexible core, under low-velocity impact, loaded with environmental thermal effects by pursuing the use of the high order shear deformation theory of sandwich structures is investigated. The sandwich beam is comprised of composite sheets and foam core. The boundary condition is simply supported by probability of circumferential deflection. Two degrees of freedom for mass- spring model was used for modeling the impact phenomena. In the presented formulation, the first order of shearing deformation theory is used for sheets, the core displacement field is considered unknown and then by using elasticity theory and compatible condition in the core, sheets common face and the relation of stress-strain core deflection are determined. In order to derive the governing equations of beam structure, the Hamilton principle was used. For validation, the results obtained from this research are compared with the results of other researchers and also the numerical result of ABAQUS software. The comparison of results show good agreement. The effects of various parameters like impact velocity and mass, environmental temperature, core and sheets thickness and materials on core and sheets deflection and core stress and impact force were studied. The obtained results showed that increasing environmental temperature has a slight effect on impact force, but a more considerable effect on beam dynamic response. It is also shown that with increasing the hardness of beam, the energy absorption is reduced.

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APA: Copy

MALEKZADEH FARD, KERAMAT, SHOKROLLAHI, SAEED, EBRAHIMZADEH, EISA, & POURMOAYED, ALI REZA. (2016). DYNAMIC ANALYSIS OF THE SANDWICH CURVED BEAMS WITH FLEXIBLE CORE IN THE STEADY STATE THERMAL CONDITION AND SUBJECTED TO RADIAL LOW-VELOCITY IMPACT. MODARES MECHANICAL ENGINEERING, 16(9), 113-123. SID. https://sid.ir/paper/179785/en

Vancouver: Copy

MALEKZADEH FARD KERAMAT, SHOKROLLAHI SAEED, EBRAHIMZADEH EISA, POURMOAYED ALI REZA. DYNAMIC ANALYSIS OF THE SANDWICH CURVED BEAMS WITH FLEXIBLE CORE IN THE STEADY STATE THERMAL CONDITION AND SUBJECTED TO RADIAL LOW-VELOCITY IMPACT. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(9):113-123. Available from: https://sid.ir/paper/179785/en

IEEE: Copy

KERAMAT MALEKZADEH FARD, SAEED SHOKROLLAHI, EISA EBRAHIMZADEH, and ALI REZA POURMOAYED, “DYNAMIC ANALYSIS OF THE SANDWICH CURVED BEAMS WITH FLEXIBLE CORE IN THE STEADY STATE THERMAL CONDITION AND SUBJECTED TO RADIAL LOW-VELOCITY IMPACT,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 9, pp. 113–123, 2016, [Online]. Available: https://sid.ir/paper/179785/en

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