Journals / Mühendis ve Makina / 2015 / Cilt: 56 - Sayı: 668

DETERMINATION OF MECHANICAL PROPERTIES OF STRUCTURAL ADHESIVES FROM ADHESIVELY BONDED JONTS SUBJECTED TO SHEAR LOAD

KAYMA YÜKÜNE MARUZ YAPIŞTIRMA BAĞLANTILARINDAN YAPISAL YAPIŞTIRICILARIN MEKANİK ÖZELLİKLERİNİN BELİRLENMESİ

Pages
48–55
Publication Date
2015-09-02
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, the TAST method is a very affective method of producing repeatable and accurate data in determining mechanical properties of structural adhesives.

📌 3 Key Takeaways

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Objective & Hypothesis:Adhesively bonded structures are widely used in many industries such as aerospace, aeronautics, automotive and nautical fields.
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Key Findings & Data:It is very important to determine accurate and reproducible mechanical properties of an adhesive layer in the adhesively bonded joints via experimental methods.
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Conclusion & Impact:In conclusion, the TAST method is a very affective method of producing repeatable and accurate data in determining mechanical properties of structural adhesives.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Yapıştırıcılar · mekanik özellikler · Structural adhesives

Abstract

Adhesively bonded structures are widely used in many industries such as aerospace, aeronautics, automotive and nautical fields. It is very important to determine accurate and reproducible mechanical properties of an adhesive layer in the adhesively bonded joints via experimental methods. In accordance with the design objectives, a widely used experimental method in the determination of the shear stress-shear strain curve for adhesives is the Thick Adherent Shear Test (TAST). The purpose of this method is to determine the adhesive properties from single lap joints subjected to shear load. In this study, the mechanical properties of adhesives from the joints prepared by using three different structural adhesives (SBT 9244, FM 73 and DP460) are measured via TAST method. Firstly, some experiments were conducted on the samples that were prepared by using FM 73 film adhesive. The obtained data were compared with the literature and system accuracy was controlled. At a later stage of the study, the shear stress-shear strain curves of SBT 9244 and DP 460 structural adhesives were determined. In conclusion, the TAST method is a very affective method of producing repeatable and accurate data in determining mechanical properties of structural adhesives.

Özet

Yapıştırma bağlantıları havacılık, uzay, denizcilik gibi birçok endüstriyel alanda yaygın bir şekilde kullanılmaktadır. Bir yapıştırma bağlantısı içindeki yapıştırıcı tabakasının mekanik özelliklerini doğru ve tekrarlanabilir bir biçimde deneysel yollardan belirleyebilmek son derece önemlidir. Tasarım amaçlarına uygun olarak yapıştırıcıların kayma gerilmesi-kayma gerinmesinin tespitinde oldukça sık kullanılan bir yöntem, TAST (Thick Adherend Shear Test) yöntemidir. Bu yöntemin amacı, kayma yüküne maruz yapıştırma bağlantısından yapıştırıcının gerilme-şekil gerinme davranışlarını tekrarlanabilir ve doğru bir biçimde belirlemektir. Bu çalışmada, üç farklı yapısal yapıştırıcı (SBT 9244, FM 73 ve DP 460) kullanılmıştır. Öncelikle, FM 73 film yapıştırıcısı kullanılarak hazırlanan numuneler üzerinde deneyler yapılmıştır. Elde edilen veriler, literatür ile karşılaştırılarak sistemin doğruluğu kontrol edilmiştir. Çalışmanın bir sonraki aşamasında ise SBT 9244 ve DP 460 yapısal yapıştırıcılarının kayma gerilmesi-kayma gerinmesi davranışları belirlenmiştir. Sonuçta, TAST yönteminin yapısal yapıştırıcılarının mekanik özelliklerinin belirlenmesinde tekrarlanabilir ve doğru veriler ürettiği görülmüştür.

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Cite This Article

AYDIN, M. D., AKPINAR, S., ÖZEL, A., ERDOĞAN, S. (2015). DETERMINATION OF MECHANICAL PROPERTIES OF STRUCTURAL ADHESIVES FROM ADHESIVELY BONDED JONTS SUBJECTED TO SHEAR LOAD. Mühendis ve Makina, Cilt: 56 - Sayı: 668, 48–55. https://ajindex.com/articles/693183

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References (14)

  1. Tomblin, J. S., Yang, C., Harter, P. 2001. “Investigation of Thick Bond Line Adhesive Joint,” Final Report, DOT/FAA/AR–01/33, U.S. Department of Transportation, Washington, USA
  2. Cognard, J. Y., Creachcadec, R. 2009. “Analysis of the Non-linear Behavior of an Adhesive in Bonded Assemblies Under Shear Loadings: Proposal of an Improved TAST,” Journal of Adhesion Science and Technology, vol. 23, p. 1333–1355
  3. Creachcadec, R., Sohier, L., Cellard, C., Gineste, B. 2015. “A Stress Concentration-Free Bonded Arcan Tensile Compression Shear Test Specimen for the Evaluation of Adhesive Mechanical Response,” International Journal of Adhesion&Adhesives, vol. 61, p. 81–92
  4. Cognard, J. Y., Creachcadec, R., Sohier, L., Leguillon, D. 2010. “Influence of Adhesive Thickness on the Behaviour of Bonded Assemblies under Shear Loadings Using a Modified TAST Fixture,” International Journal of Adhesion&Adhesives, vol. 30, p. 257–266
  5. ISO 527-2: 2012. Plastics- Determination of Tensile Properties, Part 2: Test Conditions for Moulding and Extrusion Plastics
  6. Dean, G. D., Duncan, B. C., Adams, R. D., Thomas, R., Vaughn, L. 1996. “Comparison of Bulk and Joint Specimen Tests for Determining the Shear Properties of Adhesives,” NPL Report CMMT(B) 51, National Physical Laboratory, Teddington, Middlesex, UK
  7. Duncan, B. C., Girardi, M. A., Read, B. E. 1994. “The Preparation of Bulk Adhesive Samples for Mechanical Testing," NPL Report DMM(B) 339, National Physical Laboratory, Teddington, Middlesex, UK
  8. ASTM D1002: 2010. Standard Test Method for Strength Properties of Adhesives in Shear by Tension Loading (Metal-to-Metal)
  9. ISO 4587: 2003. Adhesives- Determination of Tensile Lap-Shear Strength of Rigid-to-Rigid Bonded Assemblies
  10. ASTM D3165: 2014. Standard Test Method for Strength Properties of Adhesives in Shear by Tension Loading of Single-Lap-Joint Laminated Assemblies
  11. ASTM D5656: 2010. Standart Test Method for Thick-Adherend Metal Lap-Shear Joints of the Stress-Strain Behaviour of Adhesives in Shear by Tension Loading
  12. ISO 11003-2: 2012. Determination of Shear Behaviour of Structural Adhesives- Part 2: Tensile Test Method Using Thick Adherends
  13. Arcan, M., Hashin, Z., Voloshin, A. 1978. “A Method to Produce Uniform Plane-Stress States with Applications to Fibre Reinforced Materials,” Experimental Mechanics, vol. 18 (4), p. 141–146
  14. Duncan, B. C., Dean, G. D. 1996. “Notched-Beam Shear (Iosipescu) and Notched-Plate Shear (Arcan) Methods for Bulk