Behavior of pultruded I-section GFRP profiles under restrained torsion
Source abstract
Abstract
This work focused on restrained torsion performance and calculation methods of pultruded GFRP I-section profiles. Material shear properties were tested by V-notched tests, showing significant material nonlinearity . Restrained torsion tests were conducted for six I-section profiles. Three I-section failure modes were found: local buckling failure caused by restrained normal stress at the end, shear failure of the flange-web junction at the midspan and compression failure at the end. Subsequently, finite element analysis was conducted. UMAT based on Puck model was utilized to consider the nonlinearity of shear properties, and simulations and experiments agreed well. Shear property nonlinearity had little influence on the I-section restrained torsion behavior. Vlasov theory was extended to orthotropic materials . The formula of local buckling caused by restrained normal stress was developed based on energy theory. Furthermore, calculation methods to predict restrained torsion failure were proposed and compared; the proposed methods were the most effective.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Innovative concrete reinforcement materials · Structural Load-Bearing Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Pultruded materials and structures: a review10.1177/0021998320922894 ↗
2. A comprehensive review on mechanical properties of pultruded FRP composites subjected to long-term environmental effects10.1016/j.compositesb.2020.107958 ↗
3. Effects of corrosive environments on properties of pultruded GFRP plates10.1016/j.compositesb.2014.08.021 ↗
4. A review of the present and future utilisation of FRP composites in the civil infrastructure with reference to their important in-service properties10.1016/j.conbuildmat.2010.04.062 ↗
5. Long-term performance prediction framework based on XGBoost decision tree for pultruded FRP composites exposed to water, humidity and alkaline solution10.1016/j.compstruct.2022.115184 ↗
6. Developing an innovative curved-pultruded large-scale GFRP arch beam10.1016/j.compstruct.2020.113111 ↗
7. Jin F, Feng, P, Ye, L. Study on dynamic characteristics of light-weight FRP footbridge. In: Advances in FRP Composites in Civil Engineering. Springer, Berlin, Heidelberg: Springer; 2011. p. 173–6.10.1007/978-3-642-17487-2_37 ↗
8. Case study of first all-GFRP pedestrian bridge in Taiwan
9. Quasi-plastic flexural behavior of adhesive-bolt hybrid connection for large scale pultruded GFRP frame10.1016/j.engstruct.2021.112200 ↗
10. A review of the fire behaviour of pultruded GFRP structural profiles for civil engineering applications10.1016/j.compstruct.2015.03.006 ↗
11. Flexural behavior of a novel hybrid multicell GFRP-concrete beam10.1016/j.compstruct.2020.112606 ↗
12. Non-uniform fiber-resin distributions of pultruded GFRP profiles10.1016/j.compositesb.2021.109543 ↗
13. Mesoscale process modeling of a thick pultruded composite with variability in fiber volume fraction10.3390/ma14133763 ↗
14. Shear failure of pultruded fiber-reinforced polymer composites under axial compression10.1061/(ASCE)CC.1943-5614.0000003 ↗
15. Shen · 2013
16. Polymer composite manufacturing using a pultrusion process: a review10.3844/ajassp.2014.1798.1810 ↗
17. Pullwinding technique for realizing hybrid roving architecture in pultruded GFRP composites10.1016/j.compstruct.2022.116483 ↗
18. Torsion tests on pultruded GRP sheet10.1016/S0266-3538(98)00003-7 ↗
19. The constrained torsional characteristics of some carbon fibre composite box beams10.1016/S0263-8231(97)00044-X ↗
20. The behaviour of open and closed section carbon fibre composite beams subjected to constrained torsion10.1016/S0263-8223(97)00101-3 ↗
21. The analysis of carbon fibre composite box beams subjected to torsion with variable twist10.1016/S0045-7825(97)00015-7 ↗
22. The restrained torsional response of open section carbon fibre composite beams10.1016/0263-8223(95)00050-X ↗
23. Influence of shear deformation on restrained torsional warping of pultruded FRP bars of open cross-section10.1016/S0263-8231(01)00009-X ↗
24. Torsional response of closed FRP composite sections10.1016/j.compositesb.2013.12.065 ↗
25. Quasi-static mechanical behavior of filament wound composite thin-walled tubes: tension, torsion, and multi-axial loading10.1016/j.tws.2022.109361 ↗
26. An efficient warping model for elastoplastic torsional analysis of composite beams10.1016/j.compstruct.2017.07.041 ↗
27. CNR DT-205. Guide for the Design and Construction of Structures made of FRP Pultruded Elements. National Research Council of Italy; 2007.
28. EUR27666. Prospect for new guidance in the design of FRP; 2016.
29. CEN/TS 19101. Design of fibre-polymer composite structures; 2022.
30. American Society of Civil Engineers (ASCE). Pre-Standard for Load and Resistance Factor Design (LRFD) of Pultruded Fiber Reinforced Polymer (FRP) Structures. Reston, VA; 2010.
31. China Association for Engineering Construction Standardization (CECS). Technical specification for pultruded fiber reinforced polymer composites structure. (In Chinese); 2020.
32. ASTM D5379. Standard test method for shear properties of composite materials by the V-notched beam method. ASTM International, West Conshohocken, PA; 2019.
33. Physically based non-linear stress–strain relations for the inter-fibre fracture analysis of FRP laminates10.1016/j.compscitech.2006.10.008 ↗
34. Shihua · 2006
35. Local buckling of fiber reinforced plastic composite structural members with open and closed cross sections10.1061/(ASCE)0733-9445(2003)129:11(1503) ↗
36. Review on local buckling of hollow box FRP profiles in civil structural applications10.3390/polym13234159 ↗
37. Structural safety of pultruded FRP profiles for global buckling. Part 1: approach to material uncertainty, resistance models, and model uncertainties10.1016/j.compstruct.2020.113304 ↗
38. Lateral torsional buckling and section distortion of pultruded GFRP I-sections subject to flexure10.1016/j.compstruct.2019.111151 ↗
39. A theoretical analysis of the local buckling in thin-walled bars with open cross-section subjected to warping torsion10.1016/j.tws.2013.11.002 ↗
40. Timoshenko · 2012