Development of a Piping Integrity Evaluation Simulator Based on the Hardware-in-the-Loop Simulation

하드웨어-인-더-루프 기반의 배관 평가 시뮬레이터의 개발

  • Published : 2001.07.01


In order to verify the analytical methods predicting failure behavior of cracked piping, full-scale pipe tests are crucial in nuclear power plant piping. For this reason, series of international test programs have been conducted. However, full-scale pipe tests require expensive testing equipment and long period of testing time. The objective of this paper is to develop a test system which can economically simulate the full-scale pipe test regarding the integrity evaluation. This system provides the failure behavior of cracked pipe by testing a wide-plate specimen. The system provides the failure behavior of cracked pipe by testing a wide-plate specimen. The system was developed for the integrity evaluation of nuclear piping based on the methodology of hardware-in-the-loop (HiL) simulation. Using this simulator, the piping integrity can be evaluated based on the elastic-plastic behavior of full-scale pipe, and the high cost full-scale pipe test may be replaced with this economical system.


Curved Wide-Plate;DCPD;Full-Scale Pipe;Leak-Before-Break;Through-Wall Crack


  1. Bakker, A., 1985, 'A DC Potential Drop Procedure for Crack Initiation and R-Curve Measurements During Ductile Fracture Tests,' ASTM STP 856, pp. 394-410
  2. USNRC, 1979, 'Cracking in Feedwater System Piping' Bulletin No. 79-13
  3. USNRC, 1980, 'Investigation and Evaluation of Cracking Incidents in Piping in Pressurized Water Reactors,' NUREG-0691
  4. 허남수, 김영진, 표창률, 유영준, 양준석, 1999, '차세대 원전배관의 LBB 적용을 위한 수정배관 평가선도의 개발,' 대한기계학회 논문집 A권, 제23권, 제5호, pp. 763-771
  5. 원종일, 석창성, 1999, '역사이클하중이 원자력 배관재료의 파괴저항곡선에 미치는 영향 ', 대한기계학회 논문집 A권, 제23권, 제7호, pp. 1112-1119
  6. Wilkowski, G.M., Ahmad, J., Barnes, C.R., Broek, D., Kramer, G., Landow, M., Marschall, C.W., Maxey, W., Nakagaki, M., Scott, P., Papaspyropoulos, V., Pasupathi V., and Popelar, C., 1985, 'Degraded Piping Program Phase II, NUREG/CR-4082, Vol. 1 - Vol. 8
  7. Wilkowski, G.M., Ahmad, J., Brust, F., Ghadiali, N., Krishnaswamy, P., Landow, M., Marschall, C.W., Scott, P., and Vieth, P., 1991, 'Short Cracks in Piping and Piping Welds, NUREG/CR-4599, Vol. 1 - Vol. 4
  8. Scott, P., Wilson, M., Olson, R., Marchall, C.W., Schmidt, R. and Wilkowski, G.M., 1994, 'International Piping Integrity Research Group Program - Final Report,' NUREG/CR-6223, Vol. 1 - Vol. 4
  9. Hopper, A.,Wilkowski, G.M., Scott, P., Olson, R., Rudland, D., Kilinski, T., Mohan, R., Ghadiali, N., and Paul, D., 1997, 'The Secondary International Piping Integrity Research Group Program - Final Report', NUREG/CR-6452
  10. Michales, L., 1993, 'The Use of a Graphical Modeling Environment for Real Time Hardware-in-the-Loop Simulation of Automotive ABS System,' SAE Paper 930507, Society of Automotive Engineers Inc
  11. Sailer, U. and Essers, U., 1994, 'Real Time Simulation of Trucks for Hardware-in-the-Loop Application,' SAE Paper 942297, Society of Automotive Engineers Inc
  12. ABAQUS User's Manual-Ver. 5.8, 1999, Hibbitt, Karlson & Sorensen, Inc
  13. Standard Test Method for JIC, A Measure of Fracture Toughness, 1989, ASTM Standard E-813-89
  14. Standard Test Method for Determining J-R Curves, 1997, ASTM Standard E-1152-87
  15. Johnson, H. H., 1965, 'Calibrating the Electric Potential Method for Studying Slow Crack Growth,' Material Research and Standards, Vol. 5, No. 9, pp. 442-445