Analytical solution of the bond behavior of FRCM composites using a rigid-softening cohesive material law
Source abstract
Abstract
Abstract The study of the bond behavior of fiber-reinforced composite materials applied to cohesive substrates is a fundamental topic to correctly understand the composite-substrate stress-transfer mechanism. Bond tests of fiber reinforced cementitious matrix (FRCM) composites comprising one layer of fiber textile generally showed failure due to debonding of the textile at the matrix-fiber interface. This failure mode was described considering a fracture mechanics pure Mode-II loading condition, which provided a bond differential equation that was solved once a certain shape of the interface cohesive material law was assumed. In this paper, a rigid-softening cohesive material law, which considers the possible presence of friction stress contributions at the debonding interface, is adopted to provide the analytical solution of the matrix-fiber interface full-range behavior in FRCM composites. The solution obtained is employed to reproduce the load responses of a PBO FRCM composite subjected to a recently-developed pull-out test and validate the analytical approach.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Masonry and Concrete Structural Analysis · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Fiber-reinforced polymer composites for construction - state-of-the-art review10.1061/(ASCE)1090-0268(2002)6:2(73) ↗
2. Hollaway · 2008
3. Composite repair of timber structures10.1016/S0950-0618(02)00044-2 ↗
4. Experimental investigation on FRP-to-timber bonded interfaces10.1061/(ASCE)CC.1943-5614.0000418 ↗
5. FRP reinforcement of timber structures10.1016/j.conbuildmat.2015.06.020 ↗
6. The effect of the shape of the cohesive material law on the stress transfer at the FRP-masonry interface10.1016/j.compositesb.2016.11.012 ↗
7. Bond behaviour of Steel Reinforced Grout for the extrados strengthening of masonry vaults10.1016/j.conbuildmat.2017.06.010 ↗
8. Mechanical properties and debonding strength of fabric reinforced cementitious matrix (FRCM) systems for masonry strengthening10.1016/j.compositesb.2014.10.056 ↗
9. In-plane behavior of unreinforced masonry walls strengthened with fabric-reinforced cementitious matrix (FRCM)
10. Out-of-plane strengthening of masonry walls with FRCM composite materials10.4028/www.scientific.net/KEM.747.158 ↗
11. Anchorage strength models for FRP and steel plates bonded to concrete10.1061/(ASCE)0733-9445(2001)127:7(784) ↗
12. Response prediction of RC beams externally bonded with steel-reinforced polymers10.1061/(ASCE)1090-0268(2006)10:3(195) ↗
13. Textile-reinforced mortar (TRM) versus FRP as strengthening material of URM walls: in-plane cyclic loading10.1617/s11527-006-9207-8 ↗
14. Flexural strengthening of RC beams with an externally bonded fabric-reinforced cementitious matrix10.1061/(ASCE)CC.1943-5614.0000473 ↗
15. Flexural behavior of RC beams strengthened with steel-FRCM composite10.1016/j.engstruct.2016.09.006 ↗
16. Triantafillou · 2016
17. Behaviour of FRP reinforced concrete slabs in case of fire: theoretical models and experimental test10.1260/1369-4332.15.4.637 ↗
18. ACI Committee 549 · 2013
19. Fire performance of well-anchored TRM, FRCM, and FRP flexural strengthening systems. Belfast, UK: network group for composites in construction
20. Mortar-based systems for externally bonded strengthening of masonry10.1617/s11527-014-0360-1 ↗
21. Analyzing bond characteristics between composites and quasi-brittle substrates in the repair of bridges and other concrete structures [Chapter 3]10.1533/9780857097019.1.61 ↗
22. Out-of-plane maximum resisting bending moment of masonry walls strengthened with FRCM composites10.1016/j.compstruct.2018.04.054 ↗
23. Bond-slip relations for PBO-FRCM materials externally bonded to concrete10.1016/j.compositesb.2012.06.002 ↗
24. Failure behaviour investigation of continuous yarn reinforced cementitious composites10.1016/j.conbuildmat.2013.05.022 ↗
25. Three-dimensional numerical modeling of single-lap direct shear tests of FRCM-concrete joints using a cohesive damaged contact approach10.1061/(ASCE)CC.1943-5614.0000827 ↗
26. Failure modes in FRCM systems with dry and pre-impregnated carbon yarns: experiments and modeling10.1016/j.compositesb.2017.12.024 ↗
27. Role of the matrix layers in the stress-transfer mechanism of FRCM compo- sites bonded to a concrete substrate
28. An indirect method to calibrate the interfacial cohesive material law for FRCM-concrete joints10.1016/j.matdes.2017.04.038 ↗
29. Analytical assessment of the stress-transfer mechanism in FRCM composites10.1016/j.compstruct.2019.03.074 ↗
30. Fracture mechanics approaches to concrete strengthening using FRP materials
31. A new pull-out test to study the bond behavior of fiber reinforced cementitious composites10.4028/www.scientific.net/KEM.747.258 ↗
32. Theoretical solutions on interfacial stress transfer of externally bonded steel/composite laminates
33. Estimation of a matrix-fiber interface cohesive material law in FRCM concrete joints10.1016/j.compstruct.2018.03.005 ↗
34. Jirásek · 2002
35. Shear tests of carbon fiber plates bonded to concrete with control of snap-back10.1016/j.engfracmech.2011.07.003 ↗
36. End debonding of CFRP wraps and strips for the strengthening of concrete structures10.1016/j.compstruct.2014.01.029 ↗
37. Size and shape effect in the pull-out of FRP reinforcement from concrete10.1016/j.compstruct.2016.01.097 ↗
38. A finite-difference model with mixed interface laws for shear tests of FRP plates bonded to concrete10.1016/j.compositesb.2013.05.030 ↗
39. Loading rate effect on the debonding phenomenon in fiber reinforced cementitious matrix-concrete joints10.1016/j.compositesb.2016.09.087 ↗