Effects of unbalance on the adhesively bonded composites-aluminium joints


Gultekin K., Akpinar S., ÖZEL A., Oner G. A.

JOURNAL OF ADHESION, cilt.93, sa.9, ss.674-687, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 93 Sayı: 9
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1080/00218464.2015.1136998
  • Dergi Adı: JOURNAL OF ADHESION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.674-687
  • Anahtar Kelimeler: Adhesion, carbon fibre, finite element analysis (FEA), layered structures, mechanical testing, SINGLE-LAP JOINTS, STACKING SEQUENCES, NUMERICAL-ANALYSIS, STRESS-ANALYSIS, STRENGTH, ADHEREND, THICKNESS, PATCHES
  • Atatürk Üniversitesi Adresli: Evet

Özet

This article presents the experimental and numerical results of adhesively bonded hybrid single-lap joint (SLJ) geometry with different configurations of lower and upper adherends subject to a four-point bending test. AA2024-T3 aluminium alloy and carbon/epoxy composites with different lamina numbers and four different stacking angles as adherend and two-part liquid, structural adhesive DP 125 as paste adhesive were used. In the experimental studies, three different types of SLJs were produced using lower material that had a constant thickness of AA2024-T3 aluminium alloy and upper material of composite material that had different numbers of layers and four different stacking sequences ([0], [0/90], [45/-45], [0/45/-45/90]). In the numerical analysis, stress analyses of the SLJs were performed with a three-dimensional non-linear finite element method and the composite adherends were assumed to behave as linearly elastic materials, while the adhesive and aluminium adherend were assumed to be non-linear. Consequently, the change of stacking sequence and thickness of the composite in adhesively bonded SLJs altered the location of the neutral axis in the joint. This situation substantially influences the load-carrying capacity of the joint.