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.
When it comes to the analysis of fully saturated porous materials, a plethora of formulations  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
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|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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