*SYNTHEPRO

Data format:

An arbitrary number of lines with up to 15 values each

\(IPRO\) \(XLo\) \(Mlo\) \(DiamH\) \(Cd\) \(Cm\) \(Cdl\) \(Cml\) \(EAs\) \(Eaqs\) \(EAd\) \(BKL\) \(Kr_{inf}\) \(ML_{lim}\) \(coef_{kr}\)

Status :

Optional

Restriction :

The number of properties is limited to MAXPRO, which is version dependent.

Details :

Parameter	Description
\(IPRO\)	reference number
\(Xlo\)	element length
\(Mlo\)	linear mass
\(DiamH\)	Hydraulic diameter
\(Cd\)	normal drag coefficient
\(Cm\)	normal inertia coefficient
\(Cdl\)	tangent drag coefficient
\(Cml\)	tangent inertia coefficient
\(EA_s\)	axial stiffness for static analysis (istep 0)
\(EA_{QS}\)	axial stiffness for quasi-static analysis (istep > 0)
\(EA_{dyn}\)	dynamic axial stiffness
\(BKL\)	breaking load
\(Kr_{inf}\)	see note. Default value=21
\(ML_{lim}\)	see note. Default value=10
\(Coef_{kr}\)	see note. Default value=14/40

Note

If \(EA_{dyn} = 0\), the breaking load must be given. The dynamic axial stiffness will then be automatically evaluated as following :

\(T_{mean}\) is the mean load at the end of the quasi-static calculations

\(ML = 100*T_{mean}/BKL\)

then EAd = KrBKL*

\[ K_r = \begin{cases} Kr_{inf} & \text{si } ML < ML_{lim} \\ Kr_{inf}+coef_{kr}(ML-ML_{lim}) & \text{else} \end{cases} \]