Fill-front and cure progress monitoring is critical for vacuum-assisted resin transfer molding (VARTM) manufacturing processes. The experimental multi-channel system presented in this paper includes sensors, signal conditioning, data acquisition software, and signal post-processing components. The sensors are mechanically flexible and optically transparent fringing electric field electrode syst...

A certified aerospace resin (RTM 6) normally utilised for transfer moulding is considered vacuum infusion. The was subjected to simulated infusion conditions by using a specialised thermogravimetric analysis that enables control of pressure as well temperature. By varying conditions, it possible investigate the expected occurrence volatile loses during could cause mechanical or cosmetic defects...

Perkembangan di bidang teknologi dan sciences belakangan ini mendorong material komposit banyak gunakan pada berbagai macam produk. Komposit yang diperkuat oleh serat alam telah digunakan untuk aplikasi seperti aerospace, otomotif, alat olahraga, papan sirkuit, lain-lain. Dalam sebuah perancangan terdapat beberapa metode biasa digunakan, salah satunya adalah VDI 2221. Metode 2221 menggunakan pe...

This paper presents the results of a Forest Products Laboratory study regarding the effects of resin content, particle size, and molding pressure upon specific gravity, strength, and water absorption of hardboard products made of wood waste treated with powdered phenolic resin. Modulus of rupture in bending was found to vary approximately as the cube of specific gravity, whereas water absorptio...

In this work, the aerodynamic and structural design of fairing for vehicles was carried out. The Rankine half body theory, which is one theories being used aircraft gas turbine engine inlets turboprop nose cones adopted design. glass fabric composite materials were performed by analyzing loads. Structural analysis based on results to investigate safety. manufactured applying resin transfer mold...

GPU has become a booming technology in reverse time migration (RTM) to perform the intensive computation. Compared with saving forward modeled wavefield on the disk, RTM via wavefield reconstruction using saved boundaries on device is a more efficient method because computation is much faster than CPUGPU data transfer. In this paper, we introduce the effective boundary saving strategy in backwa...