NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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Program name | Package id | Status | Status date |
---|---|---|---|

PC-PRAISE | ESTS0071/01 | Tested | 19-JUN-1997 |

Machines used:

Package ID | Orig. computer | Test computer |
---|---|---|

ESTS0071/01 | IBM PC | PC Pentium 100 |

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4. METHOD OF SOLUTION

PC-PRAISE considers the initiation and/or growth of crack-like defects in piping weldments. The initiation analyses are based on the results of laboratory studies and field observations in austenitic piping material operating under boiling water reactor conditions. The considerable scatter in such results is quantified and incorporated into a probabilistic model. The crack growth analysis is based on (deterministic) fracture mechanics principles, in which some of the inputs (such as initial crack size) are considered to be random variables. Monte Carlo simulation, with stratified sampling on initial crack size, is used to generate weldment reliability results.

PC-PRAISE considers the initiation and/or growth of crack-like defects in piping weldments. The initiation analyses are based on the results of laboratory studies and field observations in austenitic piping material operating under boiling water reactor conditions. The considerable scatter in such results is quantified and incorporated into a probabilistic model. The crack growth analysis is based on (deterministic) fracture mechanics principles, in which some of the inputs (such as initial crack size) are considered to be random variables. Monte Carlo simulation, with stratified sampling on initial crack size, is used to generate weldment reliability results.

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6. TYPICAL RUNNING TIME

The time requirements for the sample problems ranges from 50 minutes to 1.5 hours on 33MHz 80486 with 8MB of RAM.

The time requirements for the sample problems ranges from 50 minutes to 1.5 hours on 33MHz 80486 with 8MB of RAM.

ESTS0071/01

The program PRAISE was executed at the NEA-DB on a PC DELL Optiplex GXM 5100 equipped with a Pentium processor of 99 Mhz, base memory 640 Kbyte and extended memory 32 MByte. The execution times to run the eleven sample problems of the program PRAISE which are provided with the package are respectively 3, 6, 9, 13, 5, 1, 9, 21, 6, 9, 17 minutes.[ top ]

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10. REFERENCES

- G.S. Holman and C.K. Chou:

Probability of Failure in BWR Reactor Coolant Piping Vol.1:

Summary report, NUREG/CR-4792 (UCID-20914) Vol.1, (March 1990)

- T. Lo et al.:

Probability of Failure in BWR Reactor Coolant Piping Vol.2:

Pipe Failure Induced by Crack Growth and Failure of Intermediate

Supports, NUREG/CR-4792 (UCID-20914) Vol.2, (March 1989)

- D.O. Harris et al.:

Probability of Failure in BWR Reactor Coolant Piping Vol.3:

Probabilistic Treatment of Stress Corrosion Cracking in 304 and

316NG BWR Piping Weldments

NUREG/CR-4792 (UCID-20914) Vol.1, (December 1986)

- D.O. Harris et al.:

Fracture Mechanics Models Developed for Piping Reliability

Assessment in Light Water Reactors Piping Reliability Project

NUREG/CR-2301 (UCID-15490) (June 1982)

- Nancy Storch et al.:

TV80LIB Graphics Library, LCSD 436 Rev.0, February 3, 1981

- E.Y. Lim:

Probability of Pipe Fracture in a Primary Coolant Loop of a PWR

Plant, vol. 9: PRAISE Computer Code User's Manual, Load

Combination Program Project I Final Report

NUREG/CR-2189 (UCID-18967) August 1981

- T. Lo and R.W. Mensing:

Probability of Pipe Failure in the Reactor Coolant Loops of

Combustion Engineering PWR Plants, Vol.2: Pipe Failure Induced

by Crack Growth

NUREG/CR-3663 (UCRL-53500) September 1984

- G.S. Holman and C.K. Chou:

Probability of Failure in BWR Reactor Coolant Piping Vol.1:

Summary report, NUREG/CR-4792 (UCID-20914) Vol.1, (March 1990)

- T. Lo et al.:

Probability of Failure in BWR Reactor Coolant Piping Vol.2:

Pipe Failure Induced by Crack Growth and Failure of Intermediate

Supports, NUREG/CR-4792 (UCID-20914) Vol.2, (March 1989)

- D.O. Harris et al.:

Probability of Failure in BWR Reactor Coolant Piping Vol.3:

Probabilistic Treatment of Stress Corrosion Cracking in 304 and

316NG BWR Piping Weldments

NUREG/CR-4792 (UCID-20914) Vol.1, (December 1986)

- D.O. Harris et al.:

Fracture Mechanics Models Developed for Piping Reliability

Assessment in Light Water Reactors Piping Reliability Project

NUREG/CR-2301 (UCID-15490) (June 1982)

- Nancy Storch et al.:

TV80LIB Graphics Library, LCSD 436 Rev.0, February 3, 1981

- E.Y. Lim:

Probability of Pipe Fracture in a Primary Coolant Loop of a PWR

Plant, vol. 9: PRAISE Computer Code User's Manual, Load

Combination Program Project I Final Report

NUREG/CR-2189 (UCID-18967) August 1981

- T. Lo and R.W. Mensing:

Probability of Pipe Failure in the Reactor Coolant Loops of

Combustion Engineering PWR Plants, Vol.2: Pipe Failure Induced

by Crack Growth

NUREG/CR-3663 (UCRL-53500) September 1984

ESTS0071/01, included references:

- D.O. Harris et al:Theoretical and User's Manual for pc-PRAISE

A Probabilistic Fracture Mechanics Computer Code for Piping

Reliability Analysis

NUREG/CR-5864 (UCRL-ID-109798) (July 1992)

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11. MACHINE REQUIREMENTS

PC-PRAISE can be executed on any XT, 386, or 486 personal computers. For reasonable running time, it is recommended that a 386/33 PC with a 387/33 math coprocessor at the minimum is to be used.

PC-PRAISE can be executed on any XT, 386, or 486 personal computers. For reasonable running time, it is recommended that a 386/33 PC with a 387/33 math coprocessor at the minimum is to be used.

ESTS0071/01

The program PRAISE was executed at the NEA-DB on a PC DELL Optiplex GXM 5100 equipped with a Pentium processor of 99 Mhz, base memory 640 Kbyte and extended memory 32 MByte, under MS-DOS 6.2 About 1.6 Mbyte of diskspace are required to hold ALL the package files. The filesize of the four executables are: PRAISE.EXE (252 Kbyte), PR_INPUT.EXE (93 Kbyte), PR_PLOT.EXE (151 Kbyte) and HPLASER.EXE (41 Kbyte).[ top ]

ESTS0071/01

The program PRAISE was executed at the NEA-DB under MS-DOS 6.2. The executables of program PRAISE and of the pre-processor program PR_INPUT have been created using the MicroSoft Fortran compiler (Version 5.10) and linker (Version 5.15).[ top ]

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ESTS0071/01

File name | File description | Records |
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ESTS0071_01.001 | Information file of program PC-PRAISE | 423 |

ESTS0071_01.002 | Notes on PC-PRAISE | 132 |

ESTS0071_01.003 | Source file # 1, program PRAISE | 1820 |

ESTS0071_01.004 | Source file # 2, program PRAISE | 1967 |

ESTS0071_01.005 | Source file # 3, program PRAISE | 1454 |

ESTS0071_01.006 | Source file # 4, program PRAISE | 2088 |

ESTS0071_01.007 | Source file # 5, program PRAISE | 2034 |

ESTS0071_01.008 | Source file # 6, program PRAISE | 890 |

ESTS0071_01.009 | Source file # 7, program PRAISE | 1207 |

ESTS0071_01.010 | Source file, input pre-processor PR_INPUT | 1162 |

ESTS0071_01.011 | Include file,input pre-processor PR_INPUT | 19 |

ESTS0071_01.012 | Auxiliary source code | 509 |

ESTS0071_01.013 | BASIC source file # 1, aux. program PR_PLOT | 1262 |

ESTS0071_01.014 | BASIC source file # 2, aux. program PR_PLOT | 330 |

ESTS0071_01.015 | PC-executable file of program PRAISE | 0 |

ESTS0071_01.016 | PC-executable file of program PR_INPUT | 0 |

ESTS0071_01.017 | PC-executable file of program PR_PLOT | 0 |

ESTS0071_01.018 | PC-executable file for HP LaserJet printers | 0 |

ESTS0071_01.019 | Data file required for running PRAISE.EXE | 225 |

ESTS0071_01.020 | Library file required for running PRAISE.EXE | 0 |

ESTS0071_01.021 | Template file for the demonstration problem | 0 |

ESTS0071_01.022 | Input file for PRAISE, created by PR_INPUT | 14 |

ESTS0071_01.023 | Sample input file, problem # 1 | 15 |

ESTS0071_01.024 | Sample output file, problem # 1 | 369 |

ESTS0071_01.025 | Sample output file, problem # 1 | 22 |

ESTS0071_01.026 | Sample output file, problem # 1 | 22 |

ESTS0071_01.027 | Sample output file, problem # 1 | 22 |

ESTS0071_01.028 | Sample output file, problem # 1 | 201 |

ESTS0071_01.029 | Sample input file, problem # 2 | 14 |

ESTS0071_01.030 | Sample output file, problem # 3 | 1314 |

ESTS0071_01.031 | Sample output file, problem # 2 | 22 |

ESTS0071_01.032 | Sample output file, problem # 2 | 22 |

ESTS0071_01.033 | Sample output file, problem # 2 | 22 |

ESTS0071_01.034 | Sample output file, problem # 2 | 169 |

ESTS0071_01.035 | Sample input file, problem # 3 | 126 |

ESTS0071_01.036 | Sample output file, problem # 3 | 419 |

ESTS0071_01.037 | Sample output file, problem # 3 | 22 |

ESTS0071_01.038 | Sample output file, problem # 3 | 22 |

ESTS0071_01.039 | Sample output file, problem # 3 | 22 |

ESTS0071_01.040 | Sample output file, problem # 3 | 169 |

ESTS0071_01.041 | Sample input file, problem # 4 | 48 |

ESTS0071_01.042 | Sample output file, problem # 4 | 522 |

ESTS0071_01.043 | Sample output file, problem # 4 | 110 |

ESTS0071_01.044 | Sample output file, problem # 4 | 110 |

ESTS0071_01.045 | Sample output file, problem # 4 | 110 |

ESTS0071_01.046 | Sample output file, problem # 4 | 169 |

ESTS0071_01.047 | Sample input file, problem # 5 | 15 |

ESTS0071_01.048 | Sample output file, problem # 5 | 304 |

ESTS0071_01.049 | Sample output file, problem # 5 | 8 |

ESTS0071_01.050 | Sample output file, problem # 5 | 8 |

ESTS0071_01.051 | Sample output file, problem # 5 | 8 |

ESTS0071_01.052 | Sample output file, problem # 5 | 201 |

ESTS0071_01.053 | Sample input file, problem # 6 | 12 |

ESTS0071_01.054 | Sample output file, problem # 6 | 253 |

ESTS0071_01.055 | Sample output file, problem # 6 | 12 |

ESTS0071_01.056 | Sample output file, problem # 6 | 12 |

ESTS0071_01.057 | Sample output file, problem # 6 | 12 |

ESTS0071_01.058 | Sample output file, problem # 6 | 3 |

ESTS0071_01.059 | Sample input file, problem # 7 | 12 |

ESTS0071_01.060 | Sample output file, problem # 7 | 306 |

ESTS0071_01.061 | Sample output file, problem # 7 | 22 |

ESTS0071_01.062 | Sample output file, problem # 7 | 22 |

ESTS0071_01.063 | Sample output file, problem # 7 | 22 |

ESTS0071_01.064 | Sample output file, problem # 7 | 3 |

ESTS0071_01.065 | Sample input file, problem # 8 | 16 |

ESTS0071_01.066 | Sample output file, problem # 8 | 343 |

ESTS0071_01.067 | Sample output file, problem # 8 | 22 |

ESTS0071_01.068 | Sample output file, problem # 8 | 22 |

ESTS0071_01.069 | Sample output file, problem # 8 | 22 |

ESTS0071_01.070 | Sample output file, problem # 8 | 3 |

ESTS0071_01.071 | Sample input file, problem # 9 | 17 |

ESTS0071_01.072 | Sample output file, problem # 9 | 403 |

ESTS0071_01.073 | Sample output file, problem # 9 | 22 |

ESTS0071_01.074 | Sample output file, problem # 9 | 22 |

ESTS0071_01.075 | Sample output file, problem # 9 | 22 |

ESTS0071_01.076 | Sample output file, problem # 9 | 201 |

ESTS0071_01.077 | Sample input file, problem # 10 | 20 |

ESTS0071_01.078 | Sample output file, problem # 10 | 485 |

ESTS0071_01.079 | Sample output file, problem # 10 | 22 |

ESTS0071_01.080 | Sample output file, problem # 10 | 22 |

ESTS0071_01.081 | Sample output file, problem # 10 | 22 |

ESTS0071_01.082 | Sample output file, problem # 10 | 201 |

ESTS0071_01.083 | Sample input file, problem # 11 | 54 |

ESTS0071_01.084 | Sample output file, problem # 11 | 656 |

ESTS0071_01.085 | Sample output file, problem # 11 | 110 |

ESTS0071_01.086 | Sample output file, problem # 11 | 110 |

ESTS0071_01.087 | Sample output file, problem # 11 | 110 |

ESTS0071_01.088 | Sample output file, problem # 11 | 201 |

ESTS0071_01.089 | DOS file-names | 88 |

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- G. Radiological Safety, Hazard and Accident Analysis
- I. Deformation and Stress Distributions, Structural Analysis and Engineering Design Studies

Keywords: BWR reactors, leaks, pipe joints, probabilistic sys assessment, system failure analysis.