Free vibration behaviors of carbon fiber reinforced lattice-core sandwich cylinder

He Zhang; Fangfang Sun; Hualin Fan; Haosen Chen; Liming Chen; Daining Fang

doi:10.1016/j.compscitech.2014.05.030

Free vibration behaviors of carbon fiber reinforced lattice-core sandwich cylinder

He Zhang
, Fangfang Sun^*
, Hualin Fan
, Haosen Chen
, Liming Chen
, Daining Fang

^*Corresponding author for this work

Hohai University
Nanjing University of Aeronautics and Astronautics
Peking University
Chongqing University

Research output: Contribution to journal › Article › peer-review

113 Citations (Scopus)

Abstract

To study mechanical behaviors of advanced carbon fiber reinforced composite (CFRC) sandwich cylinder with lattice cores, uni-axial compression and free vibration experiments were carried out. Load carrying capacity and local failure modes of the lattice-core sandwich cylinder (LSC) were revealed. Natural frequencies and vibration modes of CFRC LSC were revealed by experiments for the first time. For usual LSC in astronautic engineering, the first order vibration is in the plane of the cross section, turning from a circle to an oval. An equivalent method was proposed to predict the primary frequency and mode shape of the LSC, which is in excellent accordance with the experiment. Compared with grid stiffened cylinder (GSC), LSC of the same weight and dimension always has higher primary frequency, indicating that LSC is much stiffer and could be designed even lighter in astronautic applications.

Original language	English
Pages (from-to)	26-33
Number of pages	8
Journal	Composites Science and Technology
Volume	100
DOIs	https://doi.org/10.1016/j.compscitech.2014.05.030
Publication status	Published - 21 Aug 2014
Externally published	Yes

Keywords

A. Structural composites
B. Vibration
C. Sandwich structures
E. Filament winding

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10.1016/j.compscitech.2014.05.030

Cite this

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title = "Free vibration behaviors of carbon fiber reinforced lattice-core sandwich cylinder",

abstract = "To study mechanical behaviors of advanced carbon fiber reinforced composite (CFRC) sandwich cylinder with lattice cores, uni-axial compression and free vibration experiments were carried out. Load carrying capacity and local failure modes of the lattice-core sandwich cylinder (LSC) were revealed. Natural frequencies and vibration modes of CFRC LSC were revealed by experiments for the first time. For usual LSC in astronautic engineering, the first order vibration is in the plane of the cross section, turning from a circle to an oval. An equivalent method was proposed to predict the primary frequency and mode shape of the LSC, which is in excellent accordance with the experiment. Compared with grid stiffened cylinder (GSC), LSC of the same weight and dimension always has higher primary frequency, indicating that LSC is much stiffer and could be designed even lighter in astronautic applications.",

keywords = "A. Structural composites, B. Vibration, C. Sandwich structures, E. Filament winding",

author = "He Zhang and Fangfang Sun and Hualin Fan and Haosen Chen and Liming Chen and Daining Fang",

year = "2014",

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doi = "10.1016/j.compscitech.2014.05.030",

language = "English",

volume = "100",

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journal = "Composites Science and Technology",

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TY - JOUR

T1 - Free vibration behaviors of carbon fiber reinforced lattice-core sandwich cylinder

AU - Zhang, He

AU - Sun, Fangfang

AU - Fan, Hualin

AU - Chen, Haosen

AU - Chen, Liming

AU - Fang, Daining

PY - 2014/8/21

Y1 - 2014/8/21

N2 - To study mechanical behaviors of advanced carbon fiber reinforced composite (CFRC) sandwich cylinder with lattice cores, uni-axial compression and free vibration experiments were carried out. Load carrying capacity and local failure modes of the lattice-core sandwich cylinder (LSC) were revealed. Natural frequencies and vibration modes of CFRC LSC were revealed by experiments for the first time. For usual LSC in astronautic engineering, the first order vibration is in the plane of the cross section, turning from a circle to an oval. An equivalent method was proposed to predict the primary frequency and mode shape of the LSC, which is in excellent accordance with the experiment. Compared with grid stiffened cylinder (GSC), LSC of the same weight and dimension always has higher primary frequency, indicating that LSC is much stiffer and could be designed even lighter in astronautic applications.

AB - To study mechanical behaviors of advanced carbon fiber reinforced composite (CFRC) sandwich cylinder with lattice cores, uni-axial compression and free vibration experiments were carried out. Load carrying capacity and local failure modes of the lattice-core sandwich cylinder (LSC) were revealed. Natural frequencies and vibration modes of CFRC LSC were revealed by experiments for the first time. For usual LSC in astronautic engineering, the first order vibration is in the plane of the cross section, turning from a circle to an oval. An equivalent method was proposed to predict the primary frequency and mode shape of the LSC, which is in excellent accordance with the experiment. Compared with grid stiffened cylinder (GSC), LSC of the same weight and dimension always has higher primary frequency, indicating that LSC is much stiffer and could be designed even lighter in astronautic applications.

KW - A. Structural composites

KW - B. Vibration

KW - C. Sandwich structures

KW - E. Filament winding

UR - https://www.scopus.com/pages/publications/84902346468

U2 - 10.1016/j.compscitech.2014.05.030

DO - 10.1016/j.compscitech.2014.05.030

M3 - Article

AN - SCOPUS:84902346468

SN - 0266-3538

VL - 100

SP - 26

EP - 33

JO - Composites Science and Technology

JF - Composites Science and Technology

ER -

Free vibration behaviors of carbon fiber reinforced lattice-core sandwich cylinder

Abstract

Keywords

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