{"628981":{"#nid":"628981","#data":{"type":"event","title":"AE Presents: \u0022Characterization of Microstructure and Damage Evolution in Advanced Aerospace Composites Using X-ray Computed Tomography\u0022","body":[{"value":"\u003Cp\u003EYou\u0026#39;re invited to attend the talk\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Ch2\u003E\u003Cstrong\u003E\u0026quot;Characterization of Microstructure and Damage Evolution in Advanced Aerospace Composites Using X-ray Computed Tomography\u0026quot;\u003C\/strong\u003E\u003C\/h2\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cem\u003E\u003Cstrong\u003Eby\u003C\/strong\u003E\u003C\/em\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Ch2\u003E\u003Cstrong\u003EProf. Michael Czabaj\u003C\/strong\u003E\u003C\/h2\u003E\r\n\r\n\u003Cp\u003EAssistant Professor | Mechanical Engineering\u003Cbr \/\u003E\r\nUniversity of Utah\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EFriday, November 22\u003Cbr \/\u003E\r\n2 - 3 PM\u003C\/strong\u003E\u003Cbr \/\u003E\r\n\u003Cstrong\u003EMK 317\u003C\/strong\u003E\u003Cbr \/\u003E\r\n\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbout the Talk:\u003C\/strong\u003E\u003Cbr \/\u003E\r\nIn recent years, high-resolution X-ray micro-computed tomography (mCT) has emerged as a preferred method for imaging microstructure and damage in a variety of natural and engineered materials. For advanced aerospace composites, X-ray mCT has been successfully used to study 3D formation and evolution of delamination and transverse fracture, fiber tensile and compressive failure, fatigue-induced damage, and damage resulting from extreme thermomechanical environments. In addition, X-ray mCT has been used for imaging the internal microstructure of composites, including location, shape, and size of reinforcing fibers, voids, and manufacturing-induced flaws. As such, the 3D image data derived from X-ray mCT has challenged the way in which we perceive the interplay between the underlying microstructure of composites and their long term damage resistance and tolerance.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIn this talk, I will begin by giving a short overview of X-ray mCT, including a brief discussion on the advantages and disadvantages of existing lab- and synchrotron-based X-ray mCT systems. I will then discuss two examples of using X-ray mCT to study composite systems that are of interest to the aerospace community. In the first example, I will discuss our attempt to image the entire life cycle of SiC\/SiC ceramic-matrix composites, focusing primarily on the evolution of porosity and shrinkage cracks during multi-step polymer infiltration and pyrolysis. Next, I will describe a new\u0026nbsp;\u003Cem\u003Ein situ\u003C\/em\u003E\u0026nbsp;imaging experiment, conducted at the Advanced Light Source beamline 8.3.2, to image initiation and evolution of transverse cracks in polymer matrix composites subjected to flexure. I will conclude my talk by describing my group\u0026rsquo;s efforts to develop a new synchrotron-based nano-tomography beamline at the Advanced Light Source and the associated challenges with collecting, processing, and analyzing large quantities (i.e. TBs) of X-ray mCT image data.\u200b\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbout the Speaker\u003C\/strong\u003E:\u0026nbsp;\u003Cbr \/\u003E\r\nDr. Michael Czabaj is an assistant professor in the Department of Mechanical Engineering at the University of Utah and is a director of the Utah Composites Laboratory. Dr. Czabaj\u0026rsquo;s research interests are in the broad area of experimental and computational mechanics of composites, with specific focus on fracture mechanics, micromechanics, and nondestructive imaging using X-ray computed tomography. Prior to his position at the University of Utah, Dr. Czabaj was a Materials Engineer at NASA Langley Research Center. Dr. Czabaj received his doctorate in Theoretical and Applied Mechanics from Cornell University and bachelor\u0026rsquo;s degree in Aerospace Engineering from Syracuse University.\u0026nbsp;\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"A Talk by Prof. Michael Czabaj"}],"uid":"34736","created_gmt":"2019-11-14 17:47:10","changed_gmt":"2019-11-14 17:47:41","author":"Kelsey Gulledge","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-11-22T14:00:00-05:00","event_time_end":"2019-11-22T15:00:00-05:00","event_time_end_last":"2019-11-22T15:00:00-05:00","gmt_time_start":"2019-11-22 19:00:00","gmt_time_end":"2019-11-22 20:00:00","gmt_time_end_last":"2019-11-22 20:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"1237","name":"College of Engineering"}],"categories":[],"keywords":[{"id":"2082","name":"aerospace engineering"},{"id":"541","name":"Mechanical Engineering"},{"id":"138971","name":"microstructure"},{"id":"5494","name":"composites"},{"id":"174999","name":"Tomography"},{"id":"1325","name":"aerospace"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"177814","name":"Postdoc"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}