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Article

The Material Heterogeneity Effect on the Local Resistance of Pultruded GFRP Columns

by
Yongcheng Zhu
1,2,
Viktor Gribniak
1,*,
Chaofeng Ding
3,
Hua Zhu
2 and
Baiqi Chen
2
1
Department of Steel and Composite Structures, Vilnius Gediminas Technical University (VILNIUS TECH), Sauletekio Av. 11, LT-10223 Vilnius, Lithuania
2
Department of Civil Engineering, Yancheng Institute of Technology, 1st Xiwangdadao Road, Yancheng 224051, China
3
Changzhou Institute of Building Science Group Co., Ltd., 288 Changjiang Middle Road, Changzhou 213002, China
*
Author to whom correspondence should be addressed.
Materials 2024, 17(1), 153; https://doi.org/10.3390/ma17010153
Submission received: 5 December 2023 / Revised: 23 December 2023 / Accepted: 26 December 2023 / Published: 27 December 2023
(This article belongs to the Special Issue Concretes and Cement-Based Composites: Additives/Admixtures, Hydration Process and Durability Research (2nd Edition))
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Abstract

Pultruded GFRP (glass fiber-reinforced polymer) materials are widely used in structural engineering because of their lightweight, corrosion immunity, and electromagnetic transparency. However, the design of load-bearing components facing substantial compressive stresses, e.g., columns, must be more stringent than steel structures due to excessive deformability, material heterogeneity, and vulnerability to stress concentration. This manuscript investigates the failure performance of locally produced GFRP materials, focusing on the material heterogeneity effect on the mechanical resistance of a support joint of a pultruded tubular GFRP column. This experimental campaign employs relatively short rectangular profile fragments to isolate the support behavior and verify a simplified numerical finite element model, which neglects the nonlinearity of GFRP material. This work determines the material failure mechanisms behind the mechanical performance of pultruded profiles subjected to longitudinal compression for various column lengths.
Keywords: pultruded profile; compression test; short column; local failure; support joint; numerical modeling pultruded profile; compression test; short column; local failure; support joint; numerical modeling

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MDPI and ACS Style

Zhu, Y.; Gribniak, V.; Ding, C.; Zhu, H.; Chen, B. The Material Heterogeneity Effect on the Local Resistance of Pultruded GFRP Columns. Materials 2024, 17, 153. https://doi.org/10.3390/ma17010153

AMA Style

Zhu Y, Gribniak V, Ding C, Zhu H, Chen B. The Material Heterogeneity Effect on the Local Resistance of Pultruded GFRP Columns. Materials. 2024; 17(1):153. https://doi.org/10.3390/ma17010153

Chicago/Turabian Style

Zhu, Yongcheng, Viktor Gribniak, Chaofeng Ding, Hua Zhu, and Baiqi Chen. 2024. "The Material Heterogeneity Effect on the Local Resistance of Pultruded GFRP Columns" Materials 17, no. 1: 153. https://doi.org/10.3390/ma17010153

APA Style

Zhu, Y., Gribniak, V., Ding, C., Zhu, H., & Chen, B. (2024). The Material Heterogeneity Effect on the Local Resistance of Pultruded GFRP Columns. Materials, 17(1), 153. https://doi.org/10.3390/ma17010153

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