Investigating the Effect of 2-D Defects on Tensile and Creep Behavior of Single-lap Ceramic-metal Adhesive Joints

Document Type : Solid Mechanics

Authors

1 Corresponding author: Associate Professor, Department of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran

2 MSc, Department of Mechanical Engineering, Sahand University of Technology, Tabriz, Iran

Abstract

Polymer-based adhesives undergo creep deformation under constant loading due to their viscoelastic nature. The aim of this study was Investigating the effect of 2-D defects on tensile and creep behavior of single-lap ceramic-metal joints (SLJs) manufactured with adhesive Aqua-Flex. Static tensile test was performed at three ambient temperatures, 40 and 60 ° C for flawless and defective adhesive joints in ceramics as well as defects in ceramics and aluminum, and then by applying final stress-to-strength ratios equal to 0.40 and 0.60, tensile creep test has been performed. By increasing the final stress-to-strength ratio from 0.40 to 0.60 at ambient temperature, the creep displacement for faultless connection is 36%, for defective connection in ceramic 33% and for connection defective in ceramic and aluminum 40%. Find. At 40 and 60 ° C, this increase is 35% and 18% for defective connection, 54% and 5% for defective connection in ceramic and 39% and 42% for connection with defective connection in ceramic and aluminum, respectively. Also, with increasing temperature from ambient temperature to 60 ° C, the breaking force for the three types of connections is reduced by 46%, 25% and 80%, respectively.

Keywords

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References

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Aerospace Mechanics
Volume 18, Issue 2 - Serial Number 68
Serial No. 68, Summer Quarterly
August 2022
Pages 67-78

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History

  • Receive Date: 12 June 2021
  • Revise Date: 19 January 2022
  • Accept Date: 22 January 2022
  • Publish Date: 23 July 2022

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