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Öğe Experimental determination of the static and fatigue strength of theadhesive joints bonded by epoxy adhesive including different particles(Elsevier, 2018-12) Adin, Hamit; Saraç, İsmail; Temiz, ŞemsettinBecause of their many advantages, adhesively bonded joints are intensively used in many engineeringfields. So,the mechanical research of the adhesively bonded joints is very important to use these joints safely. There aremany studies performed by researchers to investigate the mechanical properties of the adhesive joints. There hasbeen a considerable interest in nanoparticles added to structural adhesives recently because nanoparticles im-prove the mechanical properties of adhesives and joints. In this paper, different nanoparticles reinforced byepoxy adhesive, and neat adhesive were used to produce single lap joints. The static and fatigue strengths ofsingle lap joints incorporating nanoparticles were compared to those without nanoparticles. Experiments wereperformed at 20 mm overlap length. DP460 epoxy was used as the adhesive material, and nano-Al2O3, nano-TiO2and nano-SiO2were used as the nanoparticles; and AISI 304 stainless steel plates were used as the adherents. Theresults of the experimental research revealed that average failure load increased significantly in nanoparticle-reinforced adhesive joints. The highest average failure load was obtained with 4 wt% nano-Al2O3in epoxyadhesive. Fatigue tests were performed at 10 Hz frequency, and 0.1 loading ratio (R). When the fatigue testresults were examined, it was observed that the addition of the nano-Al2O3and nano-SiO2to the adhesiveincreased fatigue strength of the adhesive joints, on the other hand, the addition of the nano-TiO2to the adhesivereduced fatigue strength of the adhesive joints.Öğe A research on the fatigue strength of the single-lap joint joints bonded with nanoparticle-reinforced adhesive(Welding in the World, 2021-01) Adin, Hamit; Saraç, İsmail; Temiz, ŞemsettinNano-technological developments, which have made significant progress in recent years, have significant impact on the science of adhesives. Therefore, in our study, the static and fatigue strengths of single-lap joints (SLJs) incorporating nanoparticles were compared to those without nanoparticles. Steel plates were used in the adhesive joints. The results revealed that average damage load increased significantly in nanoparticle-reinforced adhesive joints. The highest damage load was obtained with 4 wt% nanoAl2O3 in epoxy adhesive. As the average damage load increased, the locus of damage changed from interfacial to the mixture of interfacial and cohesive. Also, fatigue strengths of the joints increased when the adhesive joint had nano-Al2O3 and nano-SiO2, and decreased when the adhesive joint had nano-TiO2.
