A Study on Phased Array Technology for Polyethylene Pipe Butt Fusion Joint to Apply in Nuclear Power Plants

Авторы

  • Daehyuk Kim Graduate School of Mechanical Engineering, Pusan National University
  • Younho Cho School of Mechanical Engineering, Pusan National University

Ключевые слова:

Polyethylene (PE), Flaws, Phased array technique, Butt Fusion Joint

Аннотация

 Butt fusion welding has been widely used for its ease to fuse and suitability for high-quality High Density Polyethylene (HDPE) pipes. This paper studies background and advantages of ultrasonic phased array technology and positive attributes of high density polyethylene pipes to apply in nuclear power plants. We classified two types of flaws: cold-fusion and inclusion. Specimens have been designed and fabricated using butt fusion welding method, and potential flaws such as four different size grains of sand, aluminum pieces, and water injection were inserted. This study investigates the flaw images in the butt fusion joints of high density polyethylene pipe using the ultrasonic phased array technique.  Keywords:  Polyethylene (PE), Flaws, Phased array technique, Butt Fusion Joint  

Биографии авторов

  • Daehyuk Kim, Graduate School of Mechanical Engineering, Pusan National University
    M.S. : Pusan National University, in Mechanical Engineering, 1989, South Korea, Thesis: A study on Advanced Nondesturctive Evaluation for Polyethylene Pipe to Apply in Nuclear Power Palnt B.S. : Kyungsung University, in Civil Engineering, 2008, South Korea
  • Younho Cho, School of Mechanical Engineering, Pusan National University
    Ph.D. : Pennsylvania State University, in Engineering Science & Mechanics, 1995, U.S, Thesis : Defect Characterization Potential via Guided Waves (Advisor, Joseph L. Rose)M.S. : Yonsei University, in Mechanical Engineering, 2012, South Korea, 1989, Thesis: A Boundary Element Analysis on Thermoelastic Stress Intensity Factors for Cusp CracksB.S. : Yonsei University, Mechnical Civil Engineering, 1987, South Korea

Загрузки

Опубликован

2012-06-06

Выпуск

Том 2 № 1 (2012)

Раздел

Research Papers

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