Effect of carbon filler-modified epoxy adhesive on failure behavior of bonded single-lap joint: an experimental study combined with digital image correlation method
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Heidelberg
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the effect of carbon filler-modified epoxy adhesive on the failure behavior of the single-lap joint (SLJ) was investigated through the experimental testing and digital image correlation (DIC) method. Carbon black (CB) and carbon fiber powder (CFP) were used as fillers to modify the adhesive. Carbon fillers were added individually into epoxy adhesive at the ratios of 0.5, 1, and 2.5 wt%. Pure and modified adhesive joints were tested under tensile load to determine the failure behavior of the joints. Moreover, DIC method was utilized to display the adhesive von Mises strain at the end of the bondline. Finally, SEM images were used to evaluate the fracture surfaces of the SLJs. As a result of the tensile tests, it was found that the CB- and CFP-modified epoxy adhesive increased the failure load and breaking displacement of SLJs. Among all the joints investigated in this study, SLJ bonded with adhesive containing 1 wt% CFP reached the highest failure load while the SLJ bonded with adhesive containing 2.5 wt% CB exhibited the highest toughness. DIC results and SEM observations revealed that the increase in the failure load and toughness of SLJs were associated with the increase in the ductility of the epoxy adhesive.
Açıklama
Anahtar Kelimeler
Single-lap joint, Failure load, Carbon black, Carbon fiber powder, Digital image correlation
Kaynak
Welding in the World
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
66
Sayı
10
