Mechanical Characteristics of Low-Cost Hybrid Fiber Reinforced Polymer

ElGawady, Mohamed; Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety

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Mechanical Characteristics of Low-Cost Hybrid Fiber Reinforced Polymer

2014-07-01
By ElGawady, Mohamed

[PDF-1.01 MB]

English

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Details:

Creators:

ElGawady, Mohamed
Corporate Creators:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Columns Compressive Strength Concrete Fiber Reinforced Polymers Finite Element Method Recycled Materials Research Hub Strain (Mechanics)
Publication/ Report Number:

NUTC R343 ; Project # 00042525

NUTC R343 ; Project # 00042525 Less -
Resource Type:

Tech Report
Geographical Coverage:

Missouri ; United States

Missouri ; United States Less -
Corporate Publisher:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Abstract:

This report deals with the experimental investigation of using large deformable FRP, ± 45° oriented fibers, in concrete-filled fiber tubes (CFFT) under axial cyclic compressive loading. In addition, this report presents finite element modeling (FE) of CFFTs with large rupture strain FRP (LRS-FRP). The LRS-FRP is made with polyethylene naphthalate (PEN) and polyethylene terephthalate (PET) fibers. The PEN and PET fibers are environmentally friendly as they are made from recycled materials (e.g. bottles). They have high ultimate strain (> 5.0%) however their elastic modulus is low. The experimental work consists of two CFFT cylinders have outer three layered FRP tube with fiber oriented at ± 45° and one CFFT cylinder has three hybrid-layered FRP [± 45/0]. The investigated cylinders are tested under axial cyclic compressive loading. The FE study investigates six cylinders of PET-FRP and three cylinders of PEN-FRP. One, two and three layers of each type are investigated in this study. The FE investigated cylinders are numerically analyzed under axial monotonic compressive loading using LS-DYNA. The experimental results presented in this report indicate that the angle-ply fibers have ability to dissipate high energy and achieve good ductility. The angle-ply fibers are reorienting during loading before reaching the rupture strain without considerable enhancement in the compressive strength. The FE results showed that the thick LRS-FRP achieved much better behavior in strength and ductility than the conventional FRP (glass and carbon). This indicated that the FRP ultimate strain had a great effect on the concrete confinement even if the elastic modulus was low.
Format:

PDF
Funding:

DTRT06-G-0014
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:bdd2cbdfbede4c339dd6eef9f906bcd3781d39662e8ded3b27d313efbff29576
Download URL:

https://rosap.ntl.bts.gov/view/dot/27971/dot_27971_DS1.pdf
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Mechanical Characteristics of Low-Cost Hybrid Fiber Reinforced Polymer

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