Applied and Residual Strain/stress Measurements on a Dolomite Rock Sample Using Neutron Time-of-flight Diffraction

Article type: Research Article

Authors: Scheffzük, CH.^; | Walther, K. | Frischbutter, A.

Affiliations: GeoForschungsZentrurn Potsdam, PB 5.3, Telegrafenberg, D-14473, Potsdam, Germany | Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia

Note: [] Corresponding author. Address: GeoForschungsZentrum Potsdam, PB 5.3, Telegrafenberg, D-14473, Potsdam, Germany.

Abstract: Applied and residual strain-stress investigations were carried out on approximately pure polycrystalline dolomite under uniaxial compression and using neutron time-of-flight diffraction. Furthermore, the residual strain/stress behaviour of the sample was measured after each step of loading. Three Bragg reflections of dolomite were used for detailed investigations. They are found to be under compression, both for the loaded and for the relaxed states. Young’s moduli were determined experimentally.

Keywords: Strain/stress analysis, Neutron TOF-diffraction, In situ deformation, Dolomite rock

DOI: 10.1080/10238160108200141

Journal: Journal of Neutron Research, vol. 9, no. 2-4, pp. 187-192, 2001