Intensity of singular stress field (ISSF) variation as a function of the Young's modulus in single lap adhesive joints Articles uri icon

authors

  • GALVEZ VILLARINO, PEDRO
  • NODA, NAO AKI
  • TAKAKI, REI
  • SANO, YOSHIKAZU
  • MIYAZAKI, TATSUJIRO
  • ABENOJAR BUENDIA, JUANA
  • MARTINEZ SANCHEZ, MANUEL

publication date

  • December 2019

start page

  • 102418(1)

end page

  • 102418(9)

volume

  • 95

International Standard Serial Number (ISSN)

  • 0143-7496

Electronic International Standard Serial Number (EISSN)

  • 1879-0127

abstract

  • Employing mixed adhesive joints has been proven to be very useful. This type of joint leads to improved performance by increasing strength and decreasing stresses in critical areas of the joint. In the same way, the
    use of the Intensity of Singular Stress Field (ISSF) has been shown to
    be suitable for adhesive joint calculation, since the adhesive strength
    can be controlled by the ISSF at the interface end. Four finite element
    models have been created by combining two epoxy adhesives with different
    mechanical properties, and therefore with different Young's moduli. New
    mixed adhesive joints have been compared with respect to only-one
    adhesive joints in terms of the ISSF. The results show a clear
    improvement with one of the configurations of mixed adhesive joints. A
    significant decrease of 35.64% in the ISSF is obtained compared to the
    only-one adhesive configuration.

keywords

  • finite element stress analysis; fracture mechanics; intensity of singular stress field; strength evaluation