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

Turn off MathJax

Article Contents

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

PDF( 2731 KB)

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

FullText(HTML)

References(13)

References

冯鹏.复合材料在土木工程中的发展与应用[J].玻璃钢/复合材料,2014(9):99-104.

张其林,赵宇超,姜旭,等.全玻璃纤维复材自由曲面外立面建筑的结构设计[J].工业建筑,2019,49(9):178-183.

MANALO A, ARAVINTHAN T, FAM A, et al. State-of-the-Art Review on FRP Sandwich Systems for Lightweight Civil Infrastructure[J]. Journal of Composites for Construction, 2017, 21(1):04016068.

SHARAF T, SHAWKAT W, FAM A. Structural Performance of Sandwich Wall Panels with Different Foam Core Densities in One-Way Bending[J]. Journal of Composite Materials, 2010, 44(19):2249-2263.

TUWAIR H, HOPKINS M, VOLZ J, et al. Evaluation of Sandwich Panels with Various Polyurethane Foam-Cores and Ribs[J]. Composites Part B:Engineering, 2015(79):262-276.

LIU W, ZHANG F, WANG L, et al. Flexural Performance of Sandwich Beams with Lattice Ribs and a Functionally Multilayered Foam Core[J]. Composite Structures, 2016(152):704-711.

邱红利, 李荣. 复材网格箍筋混凝土梁受剪性能试验研究[J]. 工业建筑, 2019, 49(3):42-45

,62.

陈佳醒,方志,蒋正文.纤维增强复材筋活性粉末混凝土单向板受弯性能试验研究[J].工业建筑,2019,49(9):70-74

,39.

王跃,方海,刘伟庆,等.格构腹板增强泡桐木夹芯复材板的弯曲性能试验[J].工业建筑,2017,47(8):170-174

,48.

WANG L, LIU W, WAN L, et al. Mechanical Performance of Foam-Filled Lattice Composite Panels in Four-Point Bending:Experimental Investigation and Analytical Modeling[J]. Composites Part B:Engineering, 2014(67):270-279.

FAM A, SHARAF T. Flexural Performance of Sandwich Panels Comprising Polyurethane Core and GFRP Skins and Ribs of Various Configurations[J]. Composite Structures, 2010, 92(12):2927-2935.

中华人民共和国国家质量监督检验检疫总局.树脂浇铸体性能试验方法:GB/T 2567-2008[S].北京:中国标准出版社,2008.

中华人民共和国国家质量监督检验检疫总局.纤维增强塑料弯曲性能试验方法:GB/T 1449-2005[S].北京:中国标准出版社,2005.

Relative Articles

Supplements(0)

Cited By

Proportional views