Abstract
The stress description provided by the discrete-element method when modelling wet granular materials is investigated for the case of low degrees of saturation within the pendular regime. The stress tensor as computed solely from contact and resultant capillary forces between individual pairs of particles is analysed in depth, being compared with an analytically derived stress expression that accounts for the distributed nature of internal actions such as the liquid pressure acting along wetted surfaces. Both fundamentally different approaches are shown to be equivalent, including for low suction values where wetted surfaces are significant and physical internal forces clearly deviate from the resultant point forces considered by the discrete-element method. Under wet conditions, it is demonstrated that the discrete-element entity now includes both a particle and half a meniscus as a unit.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
