Location

San Diego, CA

Start Date

1-1-1985 12:00 AM

Description

Underclad cracks in the beltline welds of some pressurized water reactors have been implicated by analysis as a potential safety issue. This issue is known as Pressurized Thermal Shock (PTS) in which a complex sequence of events can, in a very limited number of vessels, cause a small underclad crack (6 mm minimum calculated depth) grow to an unacceptable size. A cost effective countermeasure to the PTS issue is the development of a highly reliable inspection technique for underclad cracks.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

4A

Chapter

Chapter 3: Theoretical and Applied Inverse Methods

Section

Ultrasonic Applications

Pages

579-587

DOI

10.1007/978-1-4615-9421-5_65

Language

en

File Format

Application/pdf

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Jan 1st, 12:00 AM

Signal Processing for Underclad Crack Sizing

San Diego, CA

Underclad cracks in the beltline welds of some pressurized water reactors have been implicated by analysis as a potential safety issue. This issue is known as Pressurized Thermal Shock (PTS) in which a complex sequence of events can, in a very limited number of vessels, cause a small underclad crack (6 mm minimum calculated depth) grow to an unacceptable size. A cost effective countermeasure to the PTS issue is the development of a highly reliable inspection technique for underclad cracks.