Linear Elastic - geomechanics/mpm GitHub Wiki
{
"materials": [
{
"id": 0,
"type": "LinearElastic2D",
"density": 2000,
"youngs_modulus": 100e6,
"poisson_ratio": 0.3
}
]
}
"id"
is the material ID corresponding to a subset (or all) of the generated material points."type"
is either"LinearElastic2D"
or"LinearElastic3D"
."density"
is material density."youngs_modulus"
is the constant elastic parameter Young's modulus."poisson_ratio"
is the constant elastic parameter Poisson's ratio.
Associated shear and pressure wave velocities are defined via the relationships given in [1].
References
[1] Al-Kafaji, I. K. J. (2013). Formulation of a Dynamic Material Point Method (MPM) for Geomechanical Problems. PhD Thesis. University of Stuttgart.