TY - GEN
T1 - Non-destructive crack detection by nanometric change in surface profile using digital holographic microscope
AU - Tada, Naoya
AU - Uchida, Makoto
AU - Uenoyama, Yuki
PY - 2012/12/1
Y1 - 2012/12/1
N2 - When a material is subjected to a small mechanical load, it shows a small elastic deformation of the order of nanometer. If there is a crack on the surface or underneath the surface, small elastic deformation shows non-uniformity around the crack. In this study, a non-destructive crack detection method by nanometric change in material's surface profile is proposed, and a tensile test of notched plate specimen was carried out. A non-uniform height change by mechanical load appeared near the notch. This fact suggests that the proposed method is available as an NDE method.
AB - When a material is subjected to a small mechanical load, it shows a small elastic deformation of the order of nanometer. If there is a crack on the surface or underneath the surface, small elastic deformation shows non-uniformity around the crack. In this study, a non-destructive crack detection method by nanometric change in material's surface profile is proposed, and a tensile test of notched plate specimen was carried out. A non-uniform height change by mechanical load appeared near the notch. This fact suggests that the proposed method is available as an NDE method.
UR - http://www.scopus.com/inward/record.url?scp=84883437283&partnerID=8YFLogxK
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U2 - 10.1115/PVP2012-78425
DO - 10.1115/PVP2012-78425
M3 - Conference contribution
AN - SCOPUS:84883437283
SN - 9780791855041
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
SP - 251
EP - 257
BT - ASME 2012 Pressure Vessels and Piping Conference, PVP 2012
T2 - ASME 2012 Pressure Vessels and Piping Conference, PVP 2012
Y2 - 15 July 2012 through 19 July 2012
ER -