Evaluation of low-velocity impact behavior of epoxy nanocomposite laminates modified with SiO2 nanoparticles at cryogenic temperatures
Yazarlar (5)
Hasan Ulus Konya Teknik Üniversitesi, Türkiye
Okan Demir Konya Teknik Üniversitesi, Türkiye
Ahmet C. Tatar Konya Teknik Üniversitesi, Türkiye
Halil B. Kaybal
Amasya Üniversitesi, Türkiye
Amasya Üniversitesi, Türkiye
Prof. Dr. Ahmet AVCI Necmettin Erbakan Üniversitesi
| Makale Türü |
Özgün Makale
(SCOPUS dergilerinde yayınlanan tam makale)
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| Dergi Adı | Research on Engineering Structures and Materials | ||
| Dergi ISSN | 2148-9807 Dergi Bilgileri (2019) | ||
| Makale Dili | İngilizce | Basım Tarihi | 06-2019 |
| Cilt / Sayı / Sayfa | 5 / 2 / 115–125 | DOI | 10.17515/resm2018.55is0704 |
| UAK Araştırma Alanları |
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| Özet |
| Epoxy based fiber reinforced composites are widely utilized in aerospaceapplications due to mechanical properties, thermal stability and, chemicalresistance. However, it is known that materials become brittle and due to thepoor crack resist restricts their applications in cryogenic engineeringapplications. The purpose of this paper is to experimentally investigate thecryogenic temperatures’ effect on the low-velocity impact (LVI) test of compositelaminates. In addition, the effect of matrix modification in the studied compositeswas investigated. The LVI tests were conducted at RT (room temperature), 0 °C,-50 °C, -150 °C and -196 °C (liquid nitrogen temperature) on the compositelaminates to measure influence on their energy absorption capacity. LVI testsperformed according to ASTM-D-7136 standard under 10, 20 and 30 J impactenergy levels. The results show that the contact forces and energy absorptioncapacities are improved by adding SiO2 nanoparticles into the epoxy matrix. Theabsorbed energy at cryogenic temperatures is increased by 24.87% from 18.1 Jof pure epoxy resin to 22.7 J of modified epoxy. For the purpose of comparison,the LVI properties of composites at room temperature (RT) are also investigated.It is noted that the energy absorption capacity is not higher at cryogenictemperatures than that at RT for the modified and neat epoxy composites.Moreover, the peak contact forces are reduced in low-temperature conditions. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| TR Dizin | 1 |