Affiliations: [a] MOE Key Laboratory for Strength and Vibration, School
of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, China
Correspondence:
[*]
Corresponding author: MingLong Xu, MOE Key Laboratory for
Strength and Vibration, School of Aerospace, Xi'an Jiaotong University, Xi'an,
710049, China. Tel.: +86 13892890998, 15929989527; Fax: +86 029 82669093;
E-mail: [email protected], [email protected]
Abstract: This paper characterizes a newly designed biaxial extensometer which
is capable of measuring radial deformation of circular porous materials under
simultaneous hydro-compression loading conditions. The biaxial extensometer
sensitivity is calculated using finite-element model, and the calculated
sensitivity is verified through experimental calibration. Result shows that the
biaxial extensometer responses linearly to an extremely large deformation
ranging from −10 mm to 10 mm. Furthermore, it can be reliably operated
under high hydrostatic pressure environment.
