접착 및 계면 (Journal of Adhesion and Interface)

  • 제21권1호
  • /
  • Pages.6-13
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  • 2020
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  • 1229-9243(pISSN)
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  • 2233-8217(eISSN)
한국접착및계면학회 (The Society of Adhesion and Interface, Korea)
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Time Dependent Extension and Failure Analysis of Structural Adhesive Assemblies Under Static Load Conditions

  • Young, Patrick H. (Seal Bond Adhesives Sealants and Coatings) ;
  • Miller, Zachary K. (Seal Bond Adhesives Sealants and Coatings) ;
  • Gwasdacus, Jeffrey M. (Seal Bond Adhesives Sealants and Coatings)
  • 투고 : 2019.09.15
  • 심사 : 2020.01.18
  • 발행 : 2020.03.31
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초록

The objective of the current study is to characterize the long-term stability and efficacy of a structural adhesive assembly under static load. An apparatus was designed to be used in the Instron tensile test machine that would allow for real time modeling of the failure characteristics of an assembly utilizing a moisture- cure adhesive which was bonded to concrete. A regression model was developed that followed a linear - natural log function which was used to predict the expected life of the assembly. Evaluations at different curing times confirmed the structure was more robust with longer cure durations prior to loading. Finally, the results show that under the conditions the assembly was tested, there was only a small amount of inelastic creep and the regression models demonstrated the potential for a stable structure lasting several decades.

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