Application of Adhesive Bonding in Steel and Aluminium Structures

Piekarczyk, Marek; Grec, R.

doi:10.2478/v.10169-012-0018-8

Cited by 19 publications

(11 citation statements)

References 1 publication

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“…The epoxy resin with aromatic amines with a thickness of 4 mm exhibited the highest resistance against shear strain. In contrast, epoxy resins with a thickness of 7 mm exhibited the highest resistance against shear stress [34]. Apart from reinforcing bonds in concrete structures, adhesives are also used in steel structures using a similar mechanism as concrete applications.…”

Section: Adhesives For Concretementioning

confidence: 99%

Durability Issues and Corrosion of Structural Materials and Systems in Farm Environment

Maraveas

2020

Applied Sciences

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This review paper investigated the durability and corrosion of materials used in the construction of agricultural buildings. Even though concrete and metal were the materials of choice in the construction of farm structures, they are susceptible to corrosion and environmental degradation. Acid attacks result in the oxidation of metals and mass losses and reduced compressive strength of the metal structures. Concrete structures are degraded in high humidity environments, such as lagoons, agricultural effluents, and animal manure. Poultry, cow, and pig manure contain variable quantities of corrosion-inducing chemicals, such as sulfates, nitrates, chlorides, hydrogen sulfide, and ammonia. However, the degradation of concrete structures can be mitigated by the utilization of modified concrete containing sulfur, fly ash, silica fume, and nanoparticles such as silica. Concrete structures made of fiber-reinforced polymers are less prone to corrosion and are more durable. The design for durability has also emerged as a viable option for optimizing the service life of agricultural buildings by adhering to the exposure limits.

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Section: Adhesives For Concretementioning

confidence: 99%

Durability Issues and Corrosion of Structural Materials and Systems in Farm Environment

Maraveas

2020

Applied Sciences

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“…Structural adhesive joints are a specific kind of non-separable connections that can be applied in many fields of engineering. They have numerous applications in metal structures for automotive, aviation, machine and architecture industry [2,11]. One of the simplest types of the adhesive connections is a single-lap joint that consists of two adherends (i.e.…”

Section: Introductionmentioning

confidence: 99%

Lamb wave-based monitoring of shear failure of an adhesive lap joint

Rucka¹,

Wojtczak²,

Lachowicz³

2018

Diagnostyka

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The paper presents a study on the elastic wave propagation in adhesive joints of steel plates subjected to tensile loading. A single lap joint was chosen for analysis because of its simplicity and plurality of applications. Experimental investigations consisted of the uniaxial extension of prepared specimens. Force and displacement values were recorded by a testing machine. Simultaneously, guided Lamb waves were excited and signals of their propagation were collected in a number of points by piezoelectric transducers attached to the specimen surface. Further processing of signals allowed to determine some disturbances in gathered data. The continuous wavelet transform revealed discontinuities in force-displacement relations. The Fourier transform showed changes in frequency values of recorded signals. Large disturbances of the root mean square values were also observed. The results of all analyses allowed to conclude that the identification of partial degradation state before the sample destruction was possible. Keywords: adhesive joint, tensile loading, ultrasonic waves, damage assessment, structural health monitoring MONITOROWANIE ZNISZCZENIA ŚCINANEGO POŁĄCZENIA KLEJONEGO ZA POMOCĄ FAL LAMBA Streszczenie Artykuł przedstawia badania propagacji fal sprężystych w połączeniach klejonych płyt stalowych poddanych działaniu obciążenia rozciągającego. Pojedyncze złącze zakładkowe zostało wybrane do analizy ze względu na jego prostotę i mnogość zastosowań. Badania eksperymentalne polegały na jednoosiowym rozciąganiu przygotowanych próbek. Wartości siły i przemieszczenia były zapisywane przez maszynę wytrzymałościową. Jednocześnie, wzbudzano fale prowadzone Lamba, a sygnały ich propagacji rejestrowano w kilku punktach za pomocą czujników piezoelektrycznych przymocowanych do powierzchni próbki. Dalsza obróbka sygnałów pozwoliła na wykrycie pewnych zaburzeń w zebranych danych. Ciągła transformacja falkowa ukazała nieciągłości w zależnościach siła-przemieszczenie. Transformacja Fouriera pokazała zmiany w wartościach częstotliwości zarejestrowanych sygnałów. Zaobserwowano także duże skoki wartości średniej kwadratowej. Wyniki przeprowadzonych analiz pozwoliły na sformułowanie wniosku, iż identyfikacja stanu częściowej degradacji przed zniszczeniem próbek była możliwa.

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“…That is the reason why methods based on wave propagation are very promising solutions referring to advanced monitoring systems. Guided waves are very suitable for evaluation of structural elements of steel and composite bridges, in particular plain girders as well as welded, bolted and adhesive joints [3], [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Application Of Guided Wave Propagation In Diagnostics Of Steel Bridge Components

Rucka

Zima

Kędra

2014

Archives of Civil Engineering

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Early detection of potential defects and identifi cation of their location are necessary to ensure safe, reliable and long-term use of engineering structures. Non-destructive diagnostic tests based on guided wave propagation are becoming more popular because of the possibility to inspect large areas during a single measurement with a small number of sensors. The aim of this study is the application of guided wave propagation in non-destructive diagnostics of steel bridges. The paper contains results of numerical analyses for a typical railway bridge. The ability of damage detection using guided Lamb waves was demonstrated on the example of a part of a plate girder as well as a bolted connection. In addition, laboratory tests were performed to investigate the practical application of wave propagation for a steel plate and a prestressed bolted joint.

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Application of Adhesive Bonding in Steel and Aluminium Structures

Cited by 19 publications

References 1 publication

Durability Issues and Corrosion of Structural Materials and Systems in Farm Environment

Durability Issues and Corrosion of Structural Materials and Systems in Farm Environment

Lamb wave-based monitoring of shear failure of an adhesive lap joint

Application Of Guided Wave Propagation In Diagnostics Of Steel Bridge Components

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