The effect of surface treatments on the interlaminar shear failure of GLARE laminates subjected to pre-cyclic thermal loads

SÜSLER S., BORA M. Ö., Ucan C., Türkmen H. S.

POLYMER COMPOSITES, cilt.43, sa.12, ss.9040-9053, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 12
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1002/pc.27082
  • Dergi Adı: POLYMER COMPOSITES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.9040-9053
  • Anahtar Kelimeler: degradation, interfaces, laminate design, mechanical properties, shear, surface treatment, thermal cycling, MECHANICAL-PROPERTIES, BEHAVIOR, FATIGUE, ADHESION, STRENGTH
  • Kocaeli Üniversitesi Adresli: Evet

Özet

In this study, both the individual and combined effect of thermal cycling and surface treatment on the interlaminar shear strength (ILSS) of glass laminate aluminum-reinforced epoxy (GLARE) 3/2 sheet material are investigated experimentally. Three kinds of surface treatments including sandpapering, degreasing and both degreasing and sandpapering are applied to AA6061-T6 sheets before manufacturing of hot-pressed GLARE 3/2 sheet material. Two different cyclic thermal conditions, which are referred to the flight characteristics of a typical transport category aircraft, are then applied to short-beam GLARE specimens by changing temperature limits and keeping the number of cycles the same. Three-point bending tests are lastly performed to examine the effects of surface treatments on the ILSS of GLARE laminates under pre-cyclic thermal conditions by comparing with the specimens under acyclic condition at room temperature. The results show that the ILSS of surface-treated laminates have an increase by between 29% and 73% against untreated ones according to the cyclic thermal profile. If sandpapering and degreasing apply together as a combined mechanical-chemical surface treatment process, then ILSS is totally preserved or reduced by only 4% under certain thermal pre-cyclic conditions.