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Assembly Automation
ISSN: 0144-5154
Online from: 1980
Subject Area: Mechanical & Materials Engineering
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Moulds design for adhesive bulk and joint specimens manufacturing
| Title: | Moulds design for adhesive bulk and joint specimens manufacturing |
|---|---|
| Author(s): | Mariana D. Banea, (Instituto de Engenharia Mecânica (IDMEC), Porto, Portugal), Lucas F.M. da Silva, (Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Porto, Portugal), Raul D.S.G. Campilho, (Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Porto, Portugal) |
| Citation: | Mariana D. Banea, Lucas F.M. da Silva, Raul D.S.G. Campilho, (2012) "Moulds design for adhesive bulk and joint specimens manufacturing", Assembly Automation, Vol. 32 Iss: 3, pp.284 - 292 |
| Keywords: | Adhesive joints, Adhesives, Design, Manufacturing systems, Mechanical properties of materials, Moulds, Specimens manufacturing |
| Article type: | Technical paper |
| DOI: | 10.1108/01445151211244456 (Permanent URL) |
| Publisher: | Emerald Group Publishing Limited |
| Acknowledgements: | The authors would like to thank the Portuguese Foundation for Science and Technology for supporting the work presented here, through the individual grant SFRH/BPD/75920/2011. |
| Abstract: | Purpose – The purpose of this paper is to provide an insight into the techniques which are used and developed for adhesive bulk and joint specimens manufacturing. Design/methodology/approach – After a short introduction, the paper discusses various techniques for adhesive bulk and joint specimens manufacturing and highlights their advantages and limitations. A number of examples in the form of different bulk and joint specimens of different types of adhesives are used to show the methods for determining the adhesive's mechanical properties needed for design in adhesive technology. In order to predict the adhesive joint strength, the stress distribution and a suitable failure criterion are essential. If a continuum mechanics approach is used, the availability of the stress-strain curve of the adhesive is sufficient (the bulk tensile test or the TAST test is used). For fracture mechanics-based design, mode I and mode II toughness is needed (DCB and ENF tests are used). Finally, single lap joints (SLJs) are used to assess the adhesive's performance in a joint. Findings – Before an adhesive can be specified for an application, screening tests should be conducted in order to compare and evaluate the various adhesion parameters. Properties of adhesives can vary greatly and an appropriate selection is essential for a proper joint design. Thus, to determine the stresses and strains in adhesive joints in a variety of configurations, it is necessary to characterize the adhesive behaviour in order to know its mechanical properties. A great variety of test geometries and specimens are used to obtain adhesive properties. However, for manufacturing of adhesive bulk specimens and joints necessary for use in these tests, properly, moulds should be designed. Originality/value – The paper summarises the main methods of preparing adhesive bulk and joint specimens and the test methods for determining the mechanical properties needed for design in adhesive technology. Emphasis is given to the preparation of specimens of suitable quality for mechanical property determination and the moulds designed for this purpose. |
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