Iteration monitor list for pipeline analysis with nonlinear soil and geometrically non-linear pipe behaviour (Output Table)

Data description/Result options:

ITER:

Iteration sequence number (n)

REMARK:

Type of iteration in case of non-linear calculations

Infinite Bend Angle:


Limited Bend Angle


Non-ovalising

No effect of ovalisation on stiffness taken into account

Ovalising

Effect of ovalisation on axial stiffness taken into account

Material Nonlinear

Material non-linearity taken into account

Non-oval./Oval.


Oval./Mat. Nonlin.


Non-oval./Mat. Nonlin.


NLERFLDS:

Number of soil lateral reaction error fields after soil iter (n)

NFERFLDS:

Number of soil axial friction error fields after soil iteration(n)

NTERFLDS:

Number of soil torsional friction error fields after soil iter (n)

NERFLDS:

Summated number of soil iteration error fields

(NERFLDS = NLERFLDS + NFERFLDS + NTERFLDS)

MFERPTS:

Max. no. of soil iteration error points occurring in 1 error field

NERPTS:

Total number of soil iteration error points contained in RERFLDS including error points at boundary nodes

DISEQ:

Disequilibrium indicator

(The disequilibrium indicator is the lower (truncated) integer ratio of:
The norm of the disequilibrium force vector divided by the norm of the total external+internal force vector and the specified RELDISEQ or ABSDISEQ value.
DISEQ = 9999 for all values ≥ 9999
DISEQ = 0 means 'NEAR STABILITY'
DISEQ = 'blank' means 'STABILITY' (see also the table description))

DISPMAX:

Calculated overall maximum translation

DISPADD:

Calculated maximum additional translation

(The DISPADD value is the maximum translation displacement found in this iteration due to 100% of the disequilibrium load. The additional translation does not necessarily add to DISPMAX.)

IT.FACTOR:

Multiplication factor on the disequilibrium load used in this iteration. Effective addition to displacements is DISPADD*IT.FACTOR

 
Info The number of rows is the number of iterations required to meet SOILCTL and GEOMCTL criteria.


H500511, last changed:9/14/2016

See also:

Table description

Table error description