| Summary: | 碩士 === 中華科技大學 === 機電光工程研究所碩士班 === 101 === This research presents the design and manufacturing of a composite medical-bed plate, the composite material includes epoxy resin and woven carbon fiber with foam -filled sandwich material, which made of expanded polypropylene (EPP) foam synthesis. The body of the plate combined with foamed substrate in composite materials to replace the traditional aluminum metal material brings advantages such as, light weight, high strength, X-ray transmission, etc. Besides, this feature can effectively combine homogeneous or heterogeneous materials to achieve the best combination of the design purpose. This study also provides the design and manufacturing process of a composite medical-bed plate by using vacuum resin transfer modeling (VRTM) method. Woven carbon fiber with foam-filled sandwich layer composite structures using VA-RTM method to inject resin in pre-set mold, so the preform is soaked with resin fully cemented meanwhile, the set temperature of the mold was placed in the oven to thermally hardened molding. Thus, relieve the weight of the medical-bed plate and processing costs. Moreover, use of the uniform structure of the high strength, enhancing overall force effect of medical-bed plate to reach heterogeneous material integration and reduce the weight of the structure.
Theoretical aspects of using finite element ANSYS software to analyze and design geometry model, and review adoption of the stress distribution of materials to select material, and then link with FORTRAN software program to analysis failure criterion, a suitable failure criterion will be selected to verify the damage situation of the sandwich plate and proceed static pressure to coMPare the theoretical and experimental values are quite close, it is proved that this optimum design medical-bed plate is able to meet the target of design.
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