manual_2024/html/MAKE__MECH__PROP__CASE__027_8f90_source.html

!    Copyright (C) 2012 The SPEED FOUNDATION

!    Author: Ilario Mazzieri

!

!    This file is part of SPEED.

!

!    SPEED is free software; you can redistribute it and/or modify it

!    under the terms of the GNU Affero General Public License as

!    published by the Free Software Foundation, either version 3 of the

!    License, or (at your option) any later version.

!

!    SPEED is distributed in the hope that it will be useful, but

!    WITHOUT ANY WARRANTY; without even the implied warranty of

!    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

!    Affero General Public License for more details.

!

!    You should have received a copy of the GNU Affero General Public License

!    along with SPEED.  If not, see <http://www.gnu.org/licenses/>.


     subroutine make_mech_prop_case_027(rho, lambda, mu, gamma, qs, qp, & !outputs

                                        xs, ys, zs, Depth, zs_all,&

                                        vs30, thickness, sub_tag_all)


     real*8, intent(out) :: rho, lambda, mu, gamma, qs, qp

     real*8, intent(in)  :: xs, ys, zs, depth, zs_all,&

                            vs30, thickness, sub_tag_all

     real*8              :: ni, vs, vp, depth_real


     rho    = 0.d0;

     lambda = 0.d0;

     mu     = 0.d0;

     gamma  = 0.d0;

     qs     = 0.d0;

     qp     = 0.d0;

     vs     = 0.d0;

     vp     = 0.d0;


         if ((depth .ge. 0.0d0) .and. (zs_all .ge. 0.0d0)) then

             ! Option #1

                 vs  = 300.0d0 + 36.0d0*(depth)**0.43  !VS: S velocity in m/s

                 vp  =  sqrt(4.57)*vs   !VP: P velocity in m/s  (nu = 0.36)

                 rho =  1900.0d0        !RHO: MASS DENSITY in kg/m^3

         lambda = rho * (vp**2 - 2*vs**2)

         mu = rho * vs**2

                 gamma = 6.9813e-02 ! (Qs=Vs/10=30 f=0.67 Hz)

     else

        ! + MATERIAL INSIDE THE BEDROCK (Vs=1700m/s)

         ! generic bedrock outcrop with Vs_min = 800 m/s and Vs30 = 900 m/s

         vs  = 800.0d0 + (1700.0d0-800.0d0)*(0.001d0*depth)**0.50  !VS: S velocity in m/s

         vp  =  sqrt(3.46)*vs                                   !VP: P velocity in m/s - (Poisson  = 0.3 approx)

         rho =  2200.0d0 + (2500.0d0-2200.0d0)*(0.001d0*depth)**0.50  !RHO: MASS DENSITY in kg/m^3

         qs = 0.1d0*vs

         lambda = rho * (vp**2 - 2*vs**2)

         mu = rho * vs**2

         gamma = (3.1415*(2/3))/qs   ! (Qs=Vs/10 f=0.67 Hz)


        ! Old bedrock outcrop

        !lambda = 1.0514E+10

        !mu = 7.2250E+09

        !rho = 2500.0d0

        !gamma = 2.0944E-02


     endif


     end subroutine make_mech_prop_case_027

make_mech_prop_case_027
subroutine make_mech_prop_case_027(rho, lambda, mu, gamma, qs, qp, xs, ys, zs, depth, zs_all, vs30, thickness, sub_tag_all)
Makes not-honoring technique.
Definition MAKE_MECH_PROP_CASE_027.f90:26