TY - JOUR
T1 - Mechanical property measurement at high temperature based on a new disc-shaped specimen
AU - Hu, Yu Jia
AU - Sheng, Mingxu
AU - Wen, Hui
AU - Zhu, Weidong
AU - Zhu, Jianming
AU - Jiang, Cheng
N1 - Publisher Copyright: © 2024 Elsevier Ltd
PY - 2024
Y1 - 2024
N2 - Three-dimensional digital image correlation (3D-DIC) is frequently used to measure mechanical properties of materials. However, the traditional dumbbell-shaped specimen has some limitations for measurment of mechanical properties of materials by use of 3D-DIC at high temperature due to two reasons: (1) its transverse dimension is very small and only a small number of valid speckles can be used in 3D-DIC; and (2) only a small amount of valid information, such as the average deformation of the gauge length, can be used to obtain mechanical properties in one direction. In this work, a new test method based on a disc-shaped standard specimen is first proposed. By use of analytical solutions of a disc under a uniform radial load, and measured results of the full-field displacement of the disc-shaped specimen by 3D-DIC in an effective test region at different high temperatures, mechanical properties at different high temperatures are identified.
AB - Three-dimensional digital image correlation (3D-DIC) is frequently used to measure mechanical properties of materials. However, the traditional dumbbell-shaped specimen has some limitations for measurment of mechanical properties of materials by use of 3D-DIC at high temperature due to two reasons: (1) its transverse dimension is very small and only a small number of valid speckles can be used in 3D-DIC; and (2) only a small amount of valid information, such as the average deformation of the gauge length, can be used to obtain mechanical properties in one direction. In this work, a new test method based on a disc-shaped standard specimen is first proposed. By use of analytical solutions of a disc under a uniform radial load, and measured results of the full-field displacement of the disc-shaped specimen by 3D-DIC in an effective test region at different high temperatures, mechanical properties at different high temperatures are identified.
UR - http://www.scopus.com/inward/record.url?scp=85193495311&partnerID=8YFLogxK
U2 - 10.1016/j.measurement.2024.114824
DO - 10.1016/j.measurement.2024.114824
M3 - Article
AN - SCOPUS:85193495311
SN - 0263-2241
VL - 234
JO - Measurement: Journal of the International Measurement Confederation
JF - Measurement: Journal of the International Measurement Confederation
M1 - 114824
ER -