{"349231":{"#nid":"349231","#data":{"type":"event","title":"Ph.D. Proposal - Christopher Oberste","body":[{"value":"\u003Cp\u003EMSE Ph.D. Proposal \u2013\u003Cstrong\u003E\u0026nbsp;Christopher Oberste\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EDate: Tuesday,\u0026nbsp;December 2, 2014\u003C\/p\u003E\u003Cp\u003ETime: 3:30pm\u003C\/p\u003E\u003Cp\u003ELocation: MRDC, room 4211\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ECommittee:\u003C\/p\u003E\u003Cp\u003EDr. Ben Wang, Advisor (MSE\/ISyE)\u003C\/p\u003E\u003Cp\u003EDr. Ken Gall (MSE\/ME)\u003C\/p\u003E\u003Cp\u003EDr. Satish Kumar (MSE)\u003C\/p\u003E\u003Cp\u003EDr. Rob Maskell (Cytec Engineered Materials)\u003C\/p\u003E\u003Cp\u003EDr. Donggang Yao (MSE)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003ETitle: \u003Cstrong\u003EDesign, Modelling, and Fabrication of Interlaced Thermoplastic Composites by Additive Manufacturing\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003E\u003Cbr \/\u003E\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EConventional manufacturing techniques are unable to meet the anticipated future design requirements of the high performance composites industry, particularly with respect to aerospace and automotive applications.\u0026nbsp; This is due to inherent limitations in conventional manufacturing processes that make it difficult to manipulate fabric geometry, fiber orientation, and matrix\/fiber materials within a composite structure to create a load-customized composite.\u0026nbsp; Currently, composites are either formed by assembling 2D textiles into laminates or by resin infiltrating 3D textile preforms.\u0026nbsp; Unfortunately, 2D laminates exhibit very poor out-of-plane properties, while 3D preforms trade improved out-of-plane properties for reduced in-plane tensile and shear properties.\u003C\/p\u003E\u003Cp\u003EThis proposal presents a novel composite manufacturing method capable of fabricating interlaced hybrid composite structures with local internal variations of fabric geometry and matrix\/fiber materials.\u0026nbsp; This method combines additive manufacturing and weaving technologies to permit precise control of individual yarns during a simultaneous weaving and composite formation process, which will enable the development of composite structures that exhibit superior specific strength and modulus when compared to a composite of equivalent materials fabricated by a conventional composite forming technique.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;As part of this project, a prototype of the proposed composite manufacturing method will be developed, to demonstrate the ability to form 2D and 3D composite structures with internal local variation of fabric geometry and matrix\/fiber material.\u0026nbsp; Furthermore, to maximize the value of this new manufacturing process, a processing-structure-property relationship model will be developed in conjunction with the printer prototype, to enable optimization of the composite\u2019s fabric geometry for a given complex load.\u0026nbsp; The model will be verified by mechanical testing of composites fabricated using the proposed composite manufacturing method.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Design, Modelling, and Fabrication of Interlaced Thermoplastic Composites by Additive Manufacturing"}],"uid":"28077","created_gmt":"2014-11-26 11:59:07","changed_gmt":"2016-10-08 02:10:31","author":"Danielle Ramirez","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2014-12-02T14:30:00-05:00","event_time_end":"2014-12-02T16:30:00-05:00","event_time_end_last":"2014-12-02T16:30:00-05:00","gmt_time_start":"2014-12-02 19:30:00","gmt_time_end":"2014-12-02 21:30:00","gmt_time_end_last":"2014-12-02 21:30:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"1808","name":"graduate students"},{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}