failed to allocate double array for material data

carnatin · Post by **carnatin** » Thu Mar 18, 2010 6:33 pm

what does this mean?Thanks

FiberSection3d::FiberSection3d--failed to allocate double array for material data

Post by **fmk** » Fri Mar 19, 2010 9:46 am

it should mean yoou are running out of memory .. how big is your model and how many fibers do you have in the sections.

carnatin · Post by **carnatin** » Fri Mar 19, 2010 5:25 pm

a high-pier bridge
this problem appears when I use more fibers or more elements.

following warning is the same?
UmfpackGenLinSOE::UmfpackGenLinSOE:ran out of memory for A and colA with nnz = 109693
What sre A , colA, nnz?

Post by **fmk** » Sat Mar 20, 2010 6:01 am

how may elements .. how many integration points and how many fibers in your sections.

carnatin · Post by **carnatin** » Sun Mar 21, 2010 9:52 pm

About 180 dispbeamcolumn elements, and 700 fibers and 10 integration points in section

Post by **fmk** » Mon Mar 22, 2010 9:59 am

way too many fibers and sections .. you only need at the very most 100 fibers .. did you ever do some simple modelling to see how many fibers and sections you would actually need using a single beam element?

carnatin · Post by **carnatin** » Mon Mar 22, 2010 5:45 pm

It seems that concrete fiber number have little influence on the results. Maybe this is because that the reinforcement number is about 200 in section.