Abstract
Given a system composed of psammoids and/or peloids with pore fluid and of solids, the evolution of its shape and state can be considered as a boundary value problem. For setting the scene imagine marked skeleton and solid particles (Sect. 1.2) at nods of a finite element mesh which indicate displacements and deformations, and transducers between neighboured markers which indicate skeleton or solid stresses and pore pressures. An evolution can be represented as a succession of snapshots of positions and state fields which are ordered by time t. t = 0 may be taken for an onset with an initial state field including the void ratio e o . This onset is chosen at will and not physically distinguished, i.e. the skeleton does not start at a state limit or at the verge of a suspension in general. Changes of position and shape are thus referred to arbitrary initial configurations.
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Gudehus, G. (2011). Boundary conditions. In: Physical Soil Mechanics. Advances in Geophysical and Environmental Mechanics and Mathematics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-36354-5_10
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DOI: https://doi.org/10.1007/978-3-540-36354-5_10
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