Umar, Mega Lazuardi (2016) Evaluasi Numerik Untuk Delaminasi Tengah Pada Pelat Komposit Dengan Model Cohesive Zone. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Semakin berkembangnya material komposit, menjadikan
komposit sebagai material yang sering menjadi concern bahan
penelitian. Namun, komposit juga bisa mengalami kegagalan,salah
satunya adalah delaminasi. Delaminasi adalah fenomena kerusakan
yang bisa menyebabkan kurangnya kekuatan, kekakuan, dan
kemampuan menahan beban pada material. Oleh sebab itu, penulis
mengulas beberapa pengaruh ukuran, lokasi, konfigurasi lay-up,
dan distribusi initial crack terhadap respon delaminasi pada
material komposit. Komposit yang digunakan pada penelitian ini
adalah carbon/epoxy yang disimulasikan pada ANSYS
Mechanical/APDL. Dari hasil simulasi didapatkan bahwa semakin
panjang initial crack, reaction force yang dibutuhkan untuk
membuka interface element delaminasi tengah semakin kecil.
Sebaliknya, semakin pendek initial crack, reaction force-nya
semakin besar. Lokasi dan distribusi initial crack juga
berhubungan dengan ketebalan, dimana nilai ketebalan
menyebabkan perbedaan reaction force untuk membuka interface.
Sementara itu, konfigurasi serat unsymetric lebih tahan terhadap
fenomena delaminasi daripada konfigurasi symetric.
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Development of material composit in modern era, made
composit as the concern of material research. However, composite
may fail, one of the failure phenomena in composite material called
delamination. Delamination is phenomenon of damage that cause
reduction in strength, stiffness, and load carrying. Because of that,
some effect of size, location, lay-up configuration, and distribution
of initial crack on the respon to the delamination phenomenon
discussed in this research. The composite material used in present
study is carbon/epoxy lamina simulatied in ANSYS
Mechanical/APDL. The result show that, more longer initial crack,
reaction force needed to open interface element in the middle
delamination is getting smaller. Cenversely, the shorter inititial
crack, reaction force is getting higher. The location and distribution
of initial crack is also related to the, where the value of thickness,
causing differences in reaction force to open the interface.
Meanwhile, unsymetric configuration are more resistant to
delamination phenomena than symetric configuration.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 620.118 Uma e 3100016066390 |
| Uncontrolled Keywords: | Cohesive, Composite, Delamination, Interface Element, Numerical Analysis, Analisa Numerik, Cohesive, Delaminasi, Interface Element, Komposit |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 22 Feb 2020 16:34 |
| Last Modified: | 25 Feb 2020 07:37 |
| URI: | http://repository.its.ac.id/id/eprint/75108 |
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