A review of innovations in disbonding techniques for repair and recycling of automotive vehicles

Lu, Yung-Hsiu; Broughton, James; Winfield, Patricia H.

doi:10.1016/j.ijadhadh.2014.01.021

Cited by 84 publications

(48 citation statements)

References 44 publications

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“…They have a great merit that the components assembled using the adhesive can be easily disassembled for repair and maintenance 2) . In addition, before recycling the components, parts of different materials can be easily separated.…”

Section: Introductionmentioning

confidence: 99%

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Electrical shear bonding strength reduction of resin-modified glass-ionomercement containing ionic-liquid: Concept and validation of a smart dental cement debonding-on-demand

et al. 2018

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With improvement of bonding strength of recent dental cement, it is difficult nowadays to remove restorations without excessive force or vibration to tooth, occasionally resulting in damage of dentin, enamel, and dental root. Therefore, "smart" dental cement indicating strong bonding and easy debonding-on-demand simultaneously is required. In this research, resin-modified glass-ionomer-cement containing an ionic-liquid, tris(2-hydroxyethyl)methylammonium methylsulfate was produced, and the shear bonding strength before and after direct current application were evaluated. The prototype cement containing 15 to 20 mass% ionic-liquid indicated simultaneously no significant reduction of shear bonding strength from that of the original cement not containing ionic-liquid, and significant reduction of bonding strength to approximately 20% of that of the original cement after direct current application of more than 2 mmC/mm 2 . The prototype cement in this research demonstrated that the concept of smart dental cement electrically debonding-on-demand is feasible.

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Section: Introductionmentioning

confidence: 99%

“…A major trigger is heat; adhesives softened or melt at elevated temperature are most popular ones 3) . Other triggers are, e.g., pH, light, and electric current 2,4) . In oral cavity, thermal trigger has a potential risk of oral mucous membrane damage.…”

Section: Introductionmentioning

confidence: 99%

Electrical shear bonding strength reduction of resin-modified glass-ionomercement containing ionic-liquid: Concept and validation of a smart dental cement debonding-on-demand

et al. 2018

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“…The automotive industry aims to maintaining mechanical properties and durability in structural applications [12].…”

Section: Automotive Industrymentioning

confidence: 99%

Determination of the fracture envelope of an adhesive joint as a function of moisture

Rodrigues¹,

Chaves

Silva³

et al. 2017

Materialwissenschaft Werkst

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Adhesively joints are increasingly being used in aerospace, automotive and maritime industries.The use of this type of joining provides some advantages such as reduction in weight and cost.However, adhesive joints in transportation industry may be exposed to aggressive environments such as high humidity during their service life. A particular issue with the reliability of adhesive joints is the presence of cracks and flaws. Fracture mechanics tests for adhesive joints provide relevant mechanical properties to determine the adhesive toughness and play an important role in design process.This research aims to determine the fracture toughness of aluminum/adhesive/aluminum joints under pure mode I, pure mode II and mixed mode loadings. The fracture characterization of adhesively joints was performed when these specimens were submitted to mixed mode loadings and pure modes (shear and opening). The experimental tests Double Cantilever Beam (DCB) and End-Notched Flexure (ENF) were also done in order to assess the fracture toughness in pure modes I and II, respectively. A mixed mode apparatus was used to perform the mixed mode tests from pure mode I to near mode II. Test for dry and wet condition were performed with the main purpose to predict the influence of humidity in the toughness properties. The adhesive characterized was a ductile epoxy adhesive, Nagase Chemtex ® XNR 6852E-2.The diffusion coefficient was measured and the water uptake behavior was studied for a temperature of 50 ºC. Finite element analysis (FEA) was carried out to predict the moisture content in the adhesive layer, using ABAQUS ® .The influence of water in the behavior of the adhesive joint (DCB) was verified by changes in the values of the fracture mechanics properties. The load necessary to initiate a crack propagation is lower for aged adhesive joints when compared with dry adhesive joints for pure modes and different mixed mode ratios. vi vii ResumoAs ligações adesivas são cada vez mais utilizadas na indústria aeroespacial, automóvel e naval.A utilização deste tipo de ligação fornece algumas vantagens, tais como redução do peso e do custo. Contudo, na indústria dos transportes, estas ligações podem ser expostas a ambientes agressivos, tais como ambientes com elevada humidade durante a sua vida útil. Uma questão particular é a fiabilidade das juntas adesivas na presença de fendas e falhas. Os ensaios de mecânica da fratura para juntas adesivas proporcionam propriedades mecânicas relevantes, de forma a determinar a resistência adesiva e desempenham um papel importante no processo de design de juntas.Esta pesquisa tem como objetivo determinar a tenacidade à fratura de juntas de alumínio / adesivo / alumínio em modo puro I, II e modo misto. A caracterização à fratura de juntas adesivas foi realizada quando estas estavam submetidas a cargas de modo misto e modos puros (corte e abertura). Os ensaios Double Cantilever Beam (DCB) e End-Notched Flexure (ENF)foram realizados para avaliar a resistência à fratura em modos puros I e II, respetiv...

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“…Unlike the EOL ship recycling industry, ELV recycling has a frequent supply of small units mainly depending on shredding the vehicle hull to obtain ferrous and non-ferrous metal for recycling usage of the separation techniques [21]. Lu [12] made an overview on recent innovations and disbanding technologies during ELV recycling, and argued that the rapid assembly and disassembly technologies are the key drivers in the recycling practice. In order to enforce the green technology, Ahmed Ali [22] studied the composite material selection model based on the expert decision system using the analytic hierarchy process (AHP) method and taking environmental influence into consideration.…”

Section: Green Elv Recycling Practicementioning

confidence: 99%

ELV Recycling Service Provider Selection Using the Hybrid MCDM Method: A Case Application in China

et al. 2016

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Abstract:With the rapid depletion of natural resources and undesired environmental changes globally, more interest has been shown in the research of green supply chain practices, including end-of-life vehicle (ELV) recycling. The ELV recycling is mandatory for auto-manufacturers by legislation for the purpose of minimizing potential environmental damages. The purpose of the present research is to determine the best choice of ELV recycling service provider by employing an integrating hybrid multi-criteria decision making (MCDM) method. In this research, economic, environmental and social factors are taken into consideration. The linguistic variables and trapezoidal fuzzy numbers (TFNs) are applied into this evaluation to deal with the vague and qualitative information. With the combined weight calculation of criteria based on fuzzy aggregation and Shannon Entropy techniques, the normative multi-criteria optimization technique (FVIKOR method) is applied to explore the best solution. An application was performed based on the proposed hybrid MCDM method, and sensitivity analysis was conducted on different decision making scenarios. The present study provides a decision-making approach on ELV recycling business selection under sustainability and green philosophy with high robustness and easy implementation.

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A review of innovations in disbonding techniques for repair and recycling of automotive vehicles

Cited by 84 publications

References 44 publications

Electrical shear bonding strength reduction of resin-modified glass-ionomercement containing ionic-liquid: Concept and validation of a smart dental cement debonding-on-demand

Electrical shear bonding strength reduction of resin-modified glass-ionomercement containing ionic-liquid: Concept and validation of a smart dental cement debonding-on-demand

Determination of the fracture envelope of an adhesive joint as a function of moisture

ELV Recycling Service Provider Selection Using the Hybrid MCDM Method: A Case Application in China

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