Failure modes of single and multi-bolted joint in the pultruded fiber reinforced polymer composite members

Kim, S. Y.; Yoo, Jong Ho; Kim, H. K.; Shin, Kwang Yeoul; Yoon, Soon-Jong

doi:10.1088/1757-899x/372/1/012040

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…D. UNGUREANU et. al., [52] has recommended for investigating the crushing strength of such bonded GFRP members has to be investigated to understand in order to ascertain the feasibility of using GFRP members with proper connections in TLT. It was observed that axial crushing of the composite tubes has better energy absorption than off-axis by JOHANSON [53], friction mechanisms and bending resistance also seem to be affecting the energy absorption capacity of composite tubes.…”

Section: Introductionmentioning

confidence: 99%

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

Ravikumar¹,

Palanichamy²,

Singaram³

et al. 2023

Matéria (Rio J.)

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The significant features of the GFRP angle make it one of the modern construction members for the present lattice-type Transmission Line Towers (TLT) made out of mild steel. The GFRP structural angle members with gusset plate connections for net-crushing strength are investigated in this study, with an emphasis on connections to transmission line towers. Forty-two specimens of single-lap, butt joints with bolted connections are considered in this study. The gusset plate and edge distance have different widths. The joint is subjected to a compression load before failure modes and the associated loads were noticed. An experimental investigation on the crushing behaviour of GFRP angle sections to determine the crushing performance against the standard crushing force of different connections such as bolted, adhesive, and hybrid (bolted + adhesive) with various joints (butt and lap) has been carried out and are presented. Additionally, the impact of plate edge distance and width on connection effectiveness is investigated. The innovation of the work is in the evaluation of the crushing value for bolted GFRP structural angle members of 2, 3, and 4 nos with gusset plate connections that have been used to predict the compressive strength.

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Section: Introductionmentioning

confidence: 99%

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

Ravikumar¹,

Palanichamy²,

Singaram³

et al. 2023

Matéria (Rio J.)

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“…There is a total of seven modes of failure characterized by adhesive failure, cohesive failure, thinlayer cohesive failure, fiber-tear failure, light-fiber-tear failure, stock-break failure, or mixed failure. Analysis of singlelap adhesive composite joints with delaminated adherents has been carried out by Qin M. et al [17] and Kim S. et al [18] studied the failure modes and strength of pultruded FRP bolted connection members and predicted the failure strength using the results obtained by the experiment and the finite element analysis. Experimental tests have been conducted by Mara V. et al [19] to investigate the effect of inserts on the stiffness, the load-bearing behavior of joints, and bolt-tension relaxation.…”

Section: Introductionmentioning

confidence: 99%

Failure Studies on Adhesive Bonded and Bolted Joints of Natural Fiber Composites

Atmakuri

Palevičius

Madhusudan

et al. 2021

mech

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Composites with natural fibers as reinforcements are playing a vital role in recent developments. The present work deals with the fabrication of okra and empty fruit bunch banana fiber polyester matrix composites with varying reinforcement content (5%, 10%, and 15%). Composites were fabricated by using the hand layup technique. After the fabrication process, composites were then adhesively bonded and also joined with bolts. The main objective of this work is to analyse the failure studies on adhesive bonded and bolted joints of okra and empty fruit bunch banana composite specimens. The specimens were tested under tensile load, flexural creep studies, and SEM analysis. It has been observed that empty fruit bunch banana fiber composites exhibited better joint strength properties under tensile loading when compared to the okra fiber composites. To estimate the flexural creep behaviour, all the samples were tested at a constant load of 2.5kg and 5kg. The deflections obtained during regular time intervals (four months) were noted. The presence of internal defects and void content was observed by using the scanning electron microscope. The results showed that adhesive-bonded composites were exhibited less deflection compared to the bolted joints. The empty fruit banana fiber composites exhibited higher creep than okra fiber composites. Decreased creep with the increased fiber has been observed in both cases. SEM Adhesively bonded joints possessing better sustainability as compared to the bolted joints in both the fiber-reinforced composites.

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“…Polymer based materials was proven has a potential development for sustainability in civil engineering structures. Some advanced characteristics like high strength to weight ratio, low conductivity, and corrosion resistance are among features for which the FRP are increasingly being used in structural applications [1]. All these mentioned advantages give solutions, which aim is to reach low life cycle cost of the structure [2].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of C-shape pultruded fibre reinforced polymer for bridge structures

Riyono¹,

Nasiri

2019

SN Appl. Sci.

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The development of polymer technology has been increased for the past 20 years. Most of the polymer based product is available for aviation, automotive, industrial, and infrastructure purposes include bridges. But, information concern with the used of polymer materials for bridge structures are scattered. In this paper, characterisation was made to investigate the applicability of pultruded fibre reinforced polymer (PFRP) for bridges as structural elements. Several experiments test was then carried out to determine the physical and mechanical properties of PFRP. Some results are compared with the available pre-standard of PFRP for structures. Afterwards, an ageing test was undertaken to observe the effect of temperature on the mechanical properties of PFRP. Comparison with the pre-standard of PFRP for structures show that the physical characteristics are satisfied the minimum requirements. In the mechanical part, the tensile and flexural properties of tested PFRP are conform with the pre-standard of PFRP, whereas the compressive strength was below the recommendation of the pre-standard. From ageing test under high temperature, the PFRP strength is possible to increase or decrease. Enhancement of mechanical strength could be generated by polymer cross-linking reactions which takes place after the production of PFRP and accelerated by high temperature. While, the decreasing of strength is related to the delamination process of the fibre.

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Failure modes of single and multi-bolted joint in the pultruded fiber reinforced polymer composite members

Cited by 5 publications

References 3 publications

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

Failure Studies on Adhesive Bonded and Bolted Joints of Natural Fiber Composites

Characterisation of C-shape pultruded fibre reinforced polymer for bridge structures

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