On nonlinear deflection analysis and dynamic response of sandwich plates based on a numerical method

Yong Huang , Zengshui Liu , Shihan Ma , Sining Li , Rui Yu

Abstract

Nonlinear forced vibration properties of three-layered plates containing graphene platelets (GPL) filled skins and an auxetic core have been inquired within the present paper. Owning reduced weight as well as reduced stiffness, rectangle-shaped auxetic cores have been frequently made from novel techniques such as additive manufacturing. Here, the rectangle shape core is amplified via the graphene-filled layers knowing that the layers possess uniform and linear graphene gradations. The rectangle shape core has the equivalent material specifications pursuant to relative density value. The sandwich plate is formulated pursuant to Kirchhoff plate theory while a numerical trend has been represented to discretize the plate equations. Next, an analytical trend has been performed to establish the deflection-frequency plots. Large deflections, core density and GPL amplification have showed remarkable impacts on dynamic response of three-layered plates.

Key Words

composites; design; dynamics; forced vibrations; numerical method; sandwich panels

Address

Yong Huang — 1)State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China 2)College of Civil Engineering and Architecture, Xinjiang University, Urumqi 830017, Xinjiang, PR China 3)Xinjiang Communication Construction Co.Ltd. (XCCG), Urumqi 830000, Xinjiang, PR China 4)Chengdu University of Technology, Chengdu 610000, Sichuan, PR China 5)Transpotation Industry Highway Maintenance Collaborative Innovation Platform under Complicated Conditions of Western China, Urumqi 830000, Xinjiang, PR China 6)Western Sub-Alliance of Zhongguancun Zhongke Highway Maintenance Technology Innovation Alliance, Urumqi 830000, Xinjiang, PR China
Zengshui Liu, Shihan Ma and Sining Li — State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, Xinjiang, PR China
Rui Yu — College of Civil Engineering and Architecture, Xinjiang University, Urumqi 830017, Xinjiang, PR China

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