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