Long-Term Measurement of Local Creep Deformation by Optical Fiber Marking and Remote Monitoring

Shan-Tung Tu; Jian-Ming Gong; Xiang Ling; Xiao-Yuan He

doi:10.1520/STP42148S

SYMPOSIA PAPER Published: 01 January 2001

STP42148S

Long-Term Measurement of Local Creep Deformation by Optical Fiber Marking and Remote Monitoring

Source

Creep deformation localization is a common occurrence generally found at high temperature components, typically in geometrical discontinuities and weldments. As the deformation in a small region can hardly be measured by conventional displacement gauge, a new technique for measuring long-term local creep deformation was developed by quartz optical fiber marking, remote monitoring and image processing. A long-term measurement of the creep deformations of base metal, weld metal and heat-affected zone in cross-weld specimens verifies the new technique.

Author Information

Tu, Shan-Tung

Nanjing University of Chemical Technology, Nanjing, China

Gong, Jian-Ming

Nanjing University of Chemical Technology, Nanjing, China

Ling, Xiang

Nanjing University of Chemical Technology, Nanjing, China

He, Xiao-Yuan

Southeast University, Nanjing, China

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Details

Developed by Committee: E08

Pages: 184–192

DOI: 10.1520/STP42148S

ISBN-EB: 978-0-8031-6211-2

ISBN-13: 978-0-8031-2882-8

Long-Term Measurement of Local Creep Deformation by Optical Fiber Marking and Remote Monitoring

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