*STIFFAMP

Data format:

One line with two valuesfollowed by nbrp lines with three parameters each

NPRO NBRP A_1 M_1 B_1 . A_NBRP M_NBRP B_NBRP

Status :

Optional

Purpose :

To take into account soil properties function of pipe dynamic penetration in frequency domain

Details :

Parameter	Description
NPRO	property number. It is used by TYPCONTACT to define the use of the functionality. It is the 15th parameter of TYPCONTACT
NBRP	defines the number of linear segment For the NBPR segment, the amplitude A/D is computed, and compared to (A_1,A_NBRP) If A/D is between A_I and A_I+1 the stiffness is K=m_i+1*A/D+m_i+1. If A/D> A_NBRP, M_NBRP and B_NBRP are used.