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A comparison of boundary element method and finite element method dynamic solutions for poroelastic column

 
: Igumnov, Leonid A.; Ipatov, Aleksandr A.; Petrov, Andrey N.; Litvinchuk, Svetlana Yu.; Pfaff, Aron; Eremeyev, Victor A.

:

Altenbach, H.:
Higher gradient materials and related generalized continua
Cham: Springer Nature, 2019 (Advanced structured materials 120)
ISBN: 978-3-030-30405-8 (Print)
ISBN: 978-3-030-30406-5 (Online)
S.121-134
Englisch
Aufsatz in Buch
Fraunhofer EMI ()
boundary element method; finite element method; dynamic solution; boundary integral equation; poroelastic column

Abstract
Boundary element approach for solving boundary-value problems of saturated poroelastic solid dynamics is presented. Our boundary element approach is based on step scheme for numerical inversion of Laplace transform. Biot’s model of poroelastic media with four base functions is employed in order to describe wave propagation process, base functions are skeleton displacements and pore pressure of the fluid filler. The problem of the load acting on a poroelastic prismatic solid is solved by means of developed software based on boundary element approach. A comparison of obtained BEM solution with numerical-analytical solution and also with FEM solution from ANSYS is presented.

: http://publica.fraunhofer.de/dokumente/N-566074.html