PENGEMBANGAN PROGRAM ANALISIS KOMPOSIT MENGGUNAKAN VISUAL BASIC APPLICATION UNTUK STUDI KASUS ARAH SERAT KOMPOSIT PADA STRUKTUR KULIT SAYAP PESAWAT TEMPUR GENERASI 4.5 TUGAS SARJANA

• Main Author: Bhagaskara, Panji
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/66879
• Institution: Institut Teknologi Bandung

The technology of developing fighter aircraft is growing, especially related to the use of composite materials as a substitute for metal materials. So it is necessary to make a program that aims to support understanding related to the analysis of aircraft design. In this research study, the case of fighter aircraft skin is the main component analyzed. Development of Composite Analysis Program (CAP) can be used to assist the analysis and optimization of composite structure studies. In this research study, the use of CAP is used to determine the number of layers required for composite laminae and also the margin of safety minimum value for each load case experienced by the skin of the wings of a fighter aircraft. In determining the margin of safety, three types of failure are used, namely First Ply Failure, Buckling Failure and Bearing Failure. The Composite Analysis program was created using Microsoft Excel and Visual Basic Application (VBA) because it is easy to access and does not burden computer performance. The results of analysis using the Composite Analysis Program will focus on the number of layers, thickness and mass of the resulting lamina structure. The variable that is kept constant is the value of the margin of safety buckling and uses 2 boundary conditions, namely simply supported and fixed supported. The analysis was carried out on 3 variations of different fiber directions to obtain the most optimal fiber direction for the load case given to the wing skin structure of a fighter aircraft. It was found that the variation of fiber direction [0o/±45o/90o]s with composition [30%/40%/30%] was the best compared to the other 2 variations of fiber direction.