Error in the dynamic analysis

[sreedharrao144]

Dear sir,
This is Sreedhar Rao Gentela.I modelled blast furnace with 4-noded ShellMITC4 elements with 6 DOF at each node(Full 3D Model).I used ElasticIsotropic, PlateFiber material and section is considered as PlateFiber. I am using the following analysis commands. While performing dynamic analysis with ground motion I got the following error.


Materials and sections assigned:
nDMaterial ElasticIsotropic 1 $eb $nu
nDMaterial PlateFiber 2 1
section PlateFiber 1 2 $h

Analysis commands :
constraints Transformation ;
numberer RCM;
system UmfPack ;
test NormDispIncr 1e-6 10 4;
algorithm Newton
integrator Newmark 0.5 0.25 ;
analysis Transient;
analyze 1000 0.01;



I am getting the following the out put of du and dR vectors with errors.

UMD2FA: LVALUE too small! Must be greater than 1664994
WARNING UmfpackGenLinSolver::solve(void)- -4 returned in factorization UMD2FA()
CTestNormDispIncr::test() - iteration: 1 current Norm: 0 (max: 1e-006)
Norm deltaX: 0, Norm deltaR: 1.#QNAN
deltaX: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
deltaR: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1.#QNAN 1.#QNAN 1.#QNAN 1.#QNAN 1.#QNAN 1.#QNAN 1.
This kind of output I am getting. That above shown output is part of it. Because at all the nodes and iterations this is the situation. And it is continued upto maximum number of iterations.But could not able to conclude anything.
What is that error and why it is coming? Please help me. This kind of error is due to what?I will be waiting for your response.
In recorders file I am getting all the reactions in all DOF are 1.#QNAN. What does it indicate ? 1.#QNAN means what?

[fmk]

QNANs stand for not a number. there is too much fill in happening in the matrix for it to solve the equation. you can use a -lvalueFact option to increase the amount of memory set aside for fill
in, the default is 10*NNZ