TY - JOUR ID - 83124 TI - Experimental Study of Low Speed Impact Test on the Fiber-Metal Composite Toughened with NBR Elastomer JO - Journal of Chemical and Petroleum Engineering JA - JCHPE LA - en SN - 2423-673X AU - Hashem Abadi, Davoud AU - Kaveh, Amir AU - Razavizadeh, Mahmoud AU - Yarmohammadi Toski, Mahdi AU - Jafari, Mahdi AD - Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran. AD - Polymer Engineering Department, Amirkabir University of Technology, Tehran, Iran AD - Faculty of Materials and Manufacturing engineering, Malek Ashtar University of Technology, Tehran, Iran AD - Department of Aerospace engineering, Malek Ashtar University of Technology, Tehran, Iran Y1 - 2021 PY - 2021 VL - 55 IS - 2 SP - 319 EP - 337 KW - FML KW - strike KW - Energy KW - Acrylonitrile Butadien KW - Rubber DO - 10.22059/jchpe.2021.326492.1354 N2 - In this experimental study, low velocity impact test with different energy levels was performed on a fiber-metal (FML) structure reinforced with NBR elastomer. The FML structure consisted of a 2024 layer of aluminium as the core, two layers of NBR elastomer on both sides of the aluminium and a composite layer after the NBR layers, which were made by hand layup method. The composite layers were made of bi-direction carbon fiber fabric as well as phenolic resin. Also, the knocker was made from very high hardness and hit the FML sample with various energy levels (50, 58 and 66 joules). Thus, in the present paper, the effect of different composite thicknesses on the front and back of the core against the three impact energies was studied. One of the notable innovations in this work is the use of NBR elastomer, which acts as a reinforcement in withstanding impact loads. Based on the obtained results, the maximum and minimum amount of contact force, absorbed energy, deformation and contact time was related to P ... 2.2 and P … 1.1 samples. By comparing the P … 2.1 and P… 1.2 samples after the impact test, it was shown that P… 2.1 samples has a softer behaviour. UR - https://jchpe.ut.ac.ir/article_83124.html L1 - https://jchpe.ut.ac.ir/article_83124_d4893058af104a4630da8b9b4b601ad9.pdf ER -