The Relationship Between Mechanical Properties and the Method Technique of GFRP Plate by Hand Lay-up Method: Effect of the Workers Experience

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• 关键词：Hand lay ; up ; Glass cloth ; Polyester ; Impregnation ; Composite
• 刊名：Lecture Notes in Computer Science
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：9184
• 期：1
• 页码：143-153
• 全文大小：3,745 KB
• 参考文献：1.Japanese Standards Association JIS handbook nomber.26 Plastic
  2.Tani, Y., Kikuchi, T., Otani, A., Nakai, A.: Molding operation and physical properties in hand lay-up molding. In: 57th Science Council of Japan Materials Engineering Union Lecture Papers, 25 November 2013, pp. 161鈥?62 (2013)
  3.Shimizu, T., Masaki, N., Murakami, S., Kanagawa, Y.: Stochastic simulation of tensile damage process of glass mat reinforced plastics
  4.Unsaturated polyester resin, Showa Denko K.K. http://鈥媤ww.鈥媠dk.鈥媍o.鈥媕p/鈥媝roducts/鈥?4/鈥?3.鈥媓tml
  5.Hand lay-up, spray-up molding (History of FRP60 years)
  
• 作者单位：Masakazu Migaki (14)
  Keisuke Ono (14)
  Ryo Takematsu (14)
  Yusaku Mochizuki (14)
  Eijutsu Ko (14)
  Daiki Ichikawa (14)
  Hiroyuki Hamada (14)
  
  14. Advanced Fibro-Science, Kyoto Institute of Technology, Saky艒-ku, Kyoto, Japan
  
• 丛书名：Digital Human Modeling. Applications in Health, Safety, Ergonomics and Risk Management: Human Modeling
• ISBN：978-3-319-21073-5
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349

文摘

The aim of this research was focused on the relationship between the skill of an operator in the hand lay-up molding method and the mechanical properties of the molding composites. Glass fiber reinforced plastic (GFRP) plates were prepared using the hand lay-up method by five inexperience operators. The materials of GFRP included unsaturated polyester resin and chopped glass fiber mat. The working procedure of all operators was recorded by a video camera. Mechanical properties of the GFRP plates were carried out by tensile testing. The load-displacement curve was illustrated, which was used for characterizing the molding technique of various operators. The relationship of working times and mechanical strength of the GFRP was characterized, which impacted on the mechanical properties of the specimens. From the results, the relationship was considered separately in the first half and the second half of the working times. From the results, the step of degassing squeeze out air was significantly influenced the mechanical strength of the GFRP products. Therefore, the degassing step with the iron bar was the most affected on the mechanical properties of the GFRP plate making by the inexperience operator. It can be noted that the fully degassing out of the molding product strongly suggested for the hand lay-up method in order to maintain the high strength of the GFRP products.