Pretti, G. and Coombs, W.M. and Augarde, C.E. (2022) 'A comparison of approaches for modelling poro-mechanics in the Material Point Method.', UKACM 2022 Nottingham, UK, 20-22 April 2022.
Abstract
When it comes to the analysis of fully saturated porous materials, a plethora of formulations [1] are available in the literature. Among them, the so-called u − p formulation constitutes a well-established approach when low-frequency problems are considered. It can, however, exhibit instabilities due to the discretisation as primary variables of physically different quantities, i.e., a displacement and a pressure field. Two techniques for dealing with this instability (the Taylor-Hood family of elements and the Polynomial Pressure Projection) are summarised and cross-compared for the Material Point Method and the Generalised Interpolation Material Point Method.
| Item Type: | Conference item (Paper) |
|---|---|
| Full text: | Publisher-imposed embargo (AM) Accepted Manuscript File format - PDF (397Kb) |
| Status: | Peer-reviewed |
| Publisher Web site: | https://www.ukacm2022.ukacm.org/ |
| Date accepted: | 16 March 2022 |
| Date deposited: | 21 April 2022 |
| Date of first online publication: | No date available |
| Date first made open access: | No date available |
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