Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study

Kwiecień, Arkadiusz; Krajewski, Piotr; Hojdys, Łukasz; Tekieli, Marcin; Słoński, Marek

doi:10.3390/polym10040356

Open AccessArticle

Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study

by

Arkadiusz Kwiecień

¹,

Piotr Krajewski

^2,*

,

Łukasz Hojdys

²

,

Marcin Tekieli

³ and

Marek Słoński

³

¹

Institute of Structural Mechanics, Cracow University of Technology, 31-155 Cracow, Poland

²

Institute of Building Materials and Structures, Cracow University of Technology, 31-155 Cracow, Poland

³

Institute for Computational Civil Engineering, Cracow University of Technology, 31-155 Cracow, Poland

^*

Author to whom correspondence should be addressed.

Polymers 2018, 10(4), 356; https://doi.org/10.3390/polym10040356

Submission received: 16 February 2018 / Revised: 12 March 2018 / Accepted: 18 March 2018 / Published: 22 March 2018

(This article belongs to the Special Issue Selected Papers from "SMAR 2017")

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Abstract

This paper investigates composite-to-brick strengthening systems with flexible adhesive made of polyurethane (Carbon Fibre Reinforced Polyurethane (CFRPU) and Steel Reinforced Polyurethane (SRPU)) and epoxy resin (Carbon Fibre Reinforced Polymer (CFRP) and Steel Reinforced Polymer (SRP). The specimens were tested in a single lap shear test (SLST). LVDT displacement transducers (LVDT – Linear Variable Differential Transformer) and digital image correlation method (DIC) based measurement systems were used to measure displacements and strains. The obtained results were applied in a numerical analysis of the 3D model of the SLST specimen, with flexible adhesives modeled as a hyper-elastic model. The DIC and LVDT based systems demonstrated a good correlation. Experimental and numerical analysis confirmed that composite-to-brick strengthening systems with flexible adhesives are more effective on brittle substrates than stiff ones, as they are able to reduce stress concentrations and more evenly distribute stress along the entire bonded length, thus having a higher load carrying capacity.

Keywords: strengthening; masonry; CFRP; CFRPU; SRP; SRPU; flexible adhesives; experimental tests; DIC measurements; shear bond tests; numerical analysis

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MDPI and ACS Style

Kwiecień, A.; Krajewski, P.; Hojdys, Ł.; Tekieli, M.; Słoński, M. Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study. Polymers 2018, 10, 356. https://doi.org/10.3390/polym10040356

AMA Style

Kwiecień A, Krajewski P, Hojdys Ł, Tekieli M, Słoński M. Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study. Polymers. 2018; 10(4):356. https://doi.org/10.3390/polym10040356

Chicago/Turabian Style

Kwiecień, Arkadiusz, Piotr Krajewski, Łukasz Hojdys, Marcin Tekieli, and Marek Słoński. 2018. "Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study" Polymers 10, no. 4: 356. https://doi.org/10.3390/polym10040356

APA Style

Kwiecień, A., Krajewski, P., Hojdys, Ł., Tekieli, M., & Słoński, M. (2018). Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study. Polymers, 10(4), 356. https://doi.org/10.3390/polym10040356

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Flexible Adhesive in Composite-to-Brick Strengthening—Experimental and Numerical Study

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