[Libmesh-users] Explicit Central difference time integration

[Xiao Ma <xi...@il...>]

Dear all,


I am trying to solve a transient problem using explicit integration scheme
(e.g central difference in time) with a lumpped mass technique solving a
wave propagation problem.

I am wondering if there is anything that is close to this purpose ?

Due to the explicit integration scheme , I don't need to form a stiffness
matrix K , so do I still need to use the Equationsystem class ?



If I want to still use the Equationsystem class , is there a
ExplcitTransient System available ?

Bascily what I am gonna do is just :

acceleration = F_ext./M_lumpped
velocity = v_n+dt*accleration
disp = u_n + dt*velocity


The solve is just cwiseQuotient (coefficient wise Quotient product) of two
vectors .



Thank you ,
Xiao





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*Xiao Ma*
Graduate Research Assistant
PhD student in Structural Engineering
University of Illinois at Urbana-Champaign
E-mail: *xi...@il... <xi...@il...>*
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