EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF FRP SANDWICH PANELS WITH HYBRID CORE

LUO Yimin; ZHENG Yi; LI Rong

doi:10.13204/j.gyjz202003029

Volume 50 Issue 3

Mar. 2020

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2020 > 50(3): 167-171,166

LUO Yimin, ZHENG Yi, LI Rong. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF FRP SANDWICH PANELS WITH HYBRID CORE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 167-171,166. doi: 10.13204/j.gyjz202003029

Citation:

LUO Yimin, ZHENG Yi, LI Rong. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF FRP SANDWICH PANELS WITH HYBRID CORE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 167-171,166. doi: 10.13204/j.gyjz202003029

LUO Yimin, ZHENG Yi, LI Rong. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF FRP SANDWICH PANELS WITH HYBRID CORE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 167-171,166. doi: 10.13204/j.gyjz202003029

Citation:

LUO Yimin, ZHENG Yi, LI Rong. EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF FRP SANDWICH PANELS WITH HYBRID CORE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(3): 167-171,166. doi: 10.13204/j.gyjz202003029

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EXPERIMENTAL RESEARCH ON FLEXURAL BEHAVIOR OF FRP SANDWICH PANELS WITH HYBRID CORE

doi: 10.13204/j.gyjz202003029

LUO Yimin¹,
ZHENG Yi^{2
,
,},
LI Rong¹

1. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China;
2. China Jingye Engineering Co., Ltd., Beijing 100088, China

Received Date: 2019-09-02

Abstract

Abstract

Fiber-reinforced polymer (FRP) composite sandwich systems has the advantages of light weight, high strength, and long service life. Hybrid core systems were used to manufacture sandwich composites with higher performance. FRP composite sandwich panels with GFRP web-phenolic foam core systems were manufactured by vacuum-assisted molding process. Four-point bending tests were performed on three specimens with different core layers to study the bending properties and failure modes of FRP composite sandwich panels. The test results showed that the failure mode was shear failure, which was manifested in the form of peeling failure of web and surface layer, and buckling failure of web. Increasing the longitudinal web in the middle could significantly improve the bending capacity of the panel; increasing the transverse web could significantly control the damage degree of the panel. Using Timoshenko beam theory, considering the combined effects of bending and shear deformation, the mid-span deflection was analyzed; considering the contribution of the components in the hybrid core layer to the shear capacity, the ultimate bearing capacity was predicted, and the values agreed well with the measured values.
- FRP sandwich panels,
- web-foam hybrid core,
- flexural beharior,
- mid-span displacement,
- bearing capacity

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References(13)

References

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