Evaluasi Numerik Untuk Delaminasi Komposit Double Cantilever Beam Dengan Cohesive Zone Model

Taufiqqurrahman, Nuri Setyo (2016) Evaluasi Numerik Untuk Delaminasi Komposit Double Cantilever Beam Dengan Cohesive Zone Model. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Material komposit saat ini terus berkembang, salah satunya adalah material komposit laminat. Material komposit laminat terdiri dari lamina-lamina dimana ikatan yang berdekatan kerap terdeformasi, yang biasa disebut sebagai delaminasi. Delaminasi pada material komposit laminat dapat dianalisis menggunakan metode numerik dimana dalam penelitian ini menggunakan software yang berbasis elemen hingga, yaitu ANSYS Mechanical/APDL. Untuk mengetahui proses delaminasi yang terjadi, double cantilever beam di modelkan dengan pemberian beban berupa displacement. Variasi penelitain yang digunakan diantaranya arah serat, letak initial crack, dan panjang initial crack. Dari hasil simulasi didapatkan bahwa, double cantilever beam dengan panjang initial crack 30 mm dan arah serat 0o memiliki reaction force yang paling tinggi, yaitu 116.68 N pada ketebalan beam yang sama. Double cantilever beam dengan panjang initial crack 55 mm dan arah serat 90o membutuhkan reaction force yang paling kecil diantaranya, yaitu 22.9 N. Double cantilever beam yang dibeberapa kasus memiliki tebal yang berbeda memberikan hasil yang menunjukkan bahwa semakin tebal beam maka reaction force yang dibutuhkan semakin besar. ============================================================ The development of composite materials is still on the rise. One of them is the laminated composite material which consist of lamina or multiple building-layers. The bond between the adjacent lamina is often deformed. This phenomenon is commonly referred to as delamination. Delamination in laminated composite materials can be analyzed using numerical methods. In this research, the finite element-based software, ANSYS Mechanical/APDL, is used. The study assessed the delamination process using double cantilever beam with displacement as a form of load. The study used different variables including changing the fiber orientation, the location of the initial crack, and the initial crack length on double cantilever beam. The results show that the double cantilever beam which had an initial crack length of 30 mm and initial fiber direction of 0o has the highest reaction Force, 116.68, for the same beam size. Double cantilever beam with an initial crack length of 55 mm and fiber direction 90° require the smallest reaction Force, 22.9 N. This research also conclude that the thickness of a double cantilever beam influences its reaction force. The thicker the beam, the reaction force required will be greater.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 624.177 65 Tau e
Uncontrolled Keywords: Cohesive Zone Model, Delaminasi, Double Cantilever Beam, Komposit Laminat
Subjects: T Technology > TN Mining engineering. Metallurgy
T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: EKO BUDI RAHARJO
Date Deposited: 16 Oct 2019 06:08
Last Modified: 16 Oct 2019 06:08
URI: http://repository.its.ac.id/id/eprint/71215

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