Monitoring of inside surface crack growth by strain measurement of the outside surface: a feasibility study

M Kamaya, K Miyoshi - Nuclear engineering and design, 2011 - Elsevier
Cracks detected by in-service inspections are not always removed when they are judged to
be not hazardous according to fitness-for-service evaluations. In order to secure the integrity …

Monitoring of inside surface crack growth by strain measurements of the outside surface: Application of multiple strain measurements technique to fatigue crack growth

M Kamaya - Nuclear Engineering and Design, 2013 - Elsevier
Cracks detected by in-service inspections are not always removed when they are judged to
be not hazardous. In order to secure the integrity of the cracked components, it is important …

[PDF][PDF] Nondestructive Characterization and Monitoring of Cracking in Pressurized Piping Using Surface Strain Measurements

JJ Walla, BP Hohmannb - 2023 - ndt.net
Primary loop piping integrity is a regulatory and safety concern for the long-term operation
(LTO) commercial light water reactor (LWR) nuclear power plants (NPPs). Typically, primary …

Crack growth monitoring by strain measurements

M Kamaya - Progress of Nuclear Safety for Symbiosis and …, 2014 - Springer
Cracks detected during in-service inspections are not always removed when they are
judged as hazardous. It is important to monitor the crack growth in order to secure the …

外表面ひずみ測定による内表面き裂の成長モニタリング(その2: 多点ひずみ測定法による疲労き裂進展のモニタリング)

釜谷昌幸, 川久保政洋, 木内晃 - 日本機械学会論文集A 編, 2011 - jstage.jst.go.jp
抄録 A monitoring method using strain gages has been proposed by the present authors.
This method estimates the crack depth from the change in outside strains due to internal …