Related Experiment Video
Updated: May 18, 2026

Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 15, 2013
Strength analysis and optimisation of double-toroidal anvils for high-pressure research
J Fang1, C L Bull, J S Loveday
1School of Engineering and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
Abstract:
We used the finite element method for stress and deformation analysis of the large sample volume double-toroidal anvil and gasket assembly used with the Paris-Edinburgh press for neutron scattering, in order to investigate the failure of this assembly observed repeatedly in experiments at a load of approximately 240 tonnes. The analysis is based on a new approach to modelling an opposed anvil device working under extreme stress conditions. The method relies on use of experimental data to validate the simulation in the absence of the material property data available for high pressure conditions. Using this method we analysed the stress distribution on the surface and in the bulk of the double-toroidal anvils, and we conclude that the failure occurs on the surface of the anvil and that it is caused by the tensile stress. We also use the model to show possible ways of optimising the anvil design in order to extend its operational pressure range.
More Related Videos
08:42High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
Published on: October 10, 2014
07:26Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
Related Concept Videos
Thin-Walled Hollow Shafts
Stress Concentrations in Circular Shafts
Design of Transmission Shafts - Stress Analysis
Transmission Shafts: Problem Solving
Next, use bending moment diagrams for the shaft to...
Stresses in a Shaft
Applying equilibrium conditions to the QR segment establishes that the internal shearing forces within the...
Residual Stresses in Circular Shafts