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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Özaslan, Emre Yetgin, Ali Coşkun, Volkan Acar, Bülent Olğar, Tarık |
| Copyright Year | 2018 |
| Abstract | Due to high stiffness/weight ratio, composite materials are widely used in aerospace applications such as motor case of rockets which can be regarded as a pressure vessel. The most commonly used method to manufacture the pressure vessels is the wet filament winding. However, the mechanical performance of a filament wound pressure vessel directly depends on the manufacturing process, manufacturing site environmental condition and material properties of matrix and fiber. The designed ideal pressure vessel may not be manufactured because of the mentioned issues. Therefore, manufacturing of filament wound composite structures are based on manufacturing experience and experiment. In this study, the effect of layer-by-layer thickness and fiber volume fraction variation due to manufacturing process on the mechanical performance was investigated for filament wound pressure vessel with unequal dome openings. First, the finite element model was created for designed thickness dimensions and constant material properties for all layers. Then, the model was updated. The updated finite element model considered the layer-by-layer thickness and fiber volume fraction variation. Effects of the thickness and fiber volume fraction on the stress distribution along the motor axial direction were shown. Also hydrostatic pressurization test was performed to verify finite element analysis in terms of fiber direction strain through the motor case outer surface. Important aspects of analyzing a filament wound pressure vessel were addressed for designers. |
| File Format | |
| ISBN | 9780791852002 |
| DOI | 10.1115/IMECE2018-86468 |
| Volume Number | Volume 1: Advances in Aerospace Technology |
| Conference Proceedings | ASME 2018 International Mechanical Engineering Congress and Exposition |
| Language | English |
| Publisher Date | 2018-11-09 |
| Publisher Place | Pittsburgh, Pennsylvania, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Equipment performance Stress concentration Motors Dimensions Engines Aerospace industry Fibers Rockets Finite element model Hydrostatics Composite materials Domes (structural elements) Pressure vessels Weight (mass) Materials properties Winding (process) Stiffness Manufacturing Finite element analysis |
| Content Type | Text |
| Resource Type | Article |
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