كاربرد كامپوزيتهاي FRP در مهندسي عمران
آقاي دكتر مسلم شاهوردي از سوئيس
(دانشگاه اكل پلي تكنيك لوزان (EPFL) و پژوهشگاه علوم و فناوري مواد (EMPA))
يك شنبه ۲۰ تير ۹۵ ساعت ۱۰:۳۰ تا ۱۲
پژوهشگاه پليمر و پتروشيمي ايران، سالن خيام
تهران، كيلومتر ۱۵ اتوبان تهران-كرج (حدفاصل ايستگاه مترو ايران خودرو و ورد آورد)، شهرك علم و فناوري پژوهش، بلوار پژوهش، پژوهشگاه پليمر و پتروشيمي ايران، ساختمان اعضاي هيت علمي، سالن خيام،
از كليه علاقه مندان جهت استفاده از اين سخنراني دعوت به عمل مي آيد
Scientific talk By: Dr. Moslem Shahverdi
Title: Application of FRP composite in Civil Engineering
Abstract:Fiber-reinforced polymer (FRP) composites are increasingly used in engineering structures thanks to their advantageous material properties such as high specific strength, high insensitivity to frost and de-icing salts, and short installation times. The building industry was the forerunner for the use of composites in the construction industry, with the introduction of Radomes during the Second World War. The material used for these structures was GFRP. Advances in pultrusion technology allow the production of large-scale structural components at acceptable costs for civil infrastructure applications.The polymer composite derives its mechanical characteristics wholly from those of the fiber and the quality of the fiber/matrix interface, therefore the most important properties required of the polymer is its physical and in-service characteristics. The FRP engineering structural composites must possess not only sufficient strength and stiffness properties to resist the full superimposed and self-weight loads to which the structure is exposed but also the relevant in-service and physical characteristics required to function in the aggressive and sometimes hostile environments encountered in the construction industry. Bonding and bolting are two of the main joining techniques used for composite elements but, although bolted and bonded joints have their advantages and disadvantages, adhesively-bonded joints are often preferred. This is thanks to their better performance in terms of cost-effective structures with uniformly distributed stresses without the need for cutting fastener holes that result in high stress concentrations in the FRP adherends at the edges of the holes.
The aim of this talk is to present the development of the advanced polymer composite material applications in the building and civil/structural infrastructure over the past three to four decades. This talk demonstrates the types of structures which have been developed from the FRP composite material and the most advantageous way to employ composites in civil engineering. In addition, the fracture and fatigue behavior and failure criteria of adhesively-bonded structural joints composed of pultruded GFRP adherends will be presented.
Speaker Bio: Dr. Shahverdi is a scientist at Empa, Switzerland, where he is involved in different research projects, supervising students, and teaching at ETHZ. Dr. Shahverdi obtained his PhD degree (Thesis title: Mixed-mode static and fatigue failure criteria for adhesively-bonded FRP joints) from EPFL, Switzerland in 2013. A significant numbers of scientific publications (14 peer-review journal papers, 3 book chapters, and more than 15 conference papers) shows his scientific track records. Dr. Shahverdi has been many times awarded for his effort for innovation, success and high quality research during his academic career. He has received: the innovation award at Empa 2014, PhD fellowship from Swiss National Science Foundation 2009, first place award by American Concrete Institute (ACI), Washington, D.C. USA 2004. Furthermore he was honored by “Minister of Science, Research and Technology” and President of K.N.Toosi University of Technology in 2004.