| NEi Nastran
customers in civil engineering routinely address issues related
to: |
• |
Structure
analysis of concrete slabs, structural frames, building trusses,
guyed masts, towers, and silos, as well as innovative thin shell
and geodesic structures |
• |
Design
and analysis of tension structures, glass atriums and skylights,
and composite roofs and canopies |
• |
Detailed
analysis to predict local buckling, assess fatigue and welding defects |
• |
Loading
environments such as seismic, impact, wind, snow, ice and thermal
loading |
• |
Prestress
analysis of tension structures, cables, and reinforcing members
|
• |
Seismic
analysis using CQC, NRL, SRSS and ABS modal combination methods |
• |
Linear
and nonlinear transient, frequency, and random response analysis
with base excitation |
• |
Applications
including structures found in airports, theme parks, public and
commercial buildings, observatories, and parking garages |
• |
Full
Analysis capabilities from model setup to detail results visualization |
| |
|
| NEi Nastran
product suite key benefits for civil engineering: |
• |
Comprehensive
interactive tools necessary for model creation, analysis
monitoring, and results evaluation including a state-of-the-art
analysis editor. |
• |
High
performance processing including advanced parallel PCG
iterative, sparse direct, and block Lanczos solvers which allow
solutions to large-scale models over 10 million degrees of freedom
on inexpensive 32-bit Windows workstations as well as high end 64-bit
Linux clusters. |
• |
Robust
contact capability using a 3D surface contact method which
easily handles dissimilar meshes between components including frictional
effects. |
• |
Basic
through advanced material models including temperature
dependent materials, nonlinear elasticity and plasticity effects,
creep, and thermo-elasticity. |
• |
Model
Reduction and Substructuring allowing in-depth evaluation
of particular regions and convenient transfer of models to subcontractors. |
• |
Submodeling,
allowing in-depth evaluation of particular regions. |
• |
Load
and Boundary Condition Interpolation allows mapping of
thermal and CFD output from specialized heat transfer and fluid
dynamic models to the structural model for load and boundary condition
definition. |
• |
Advanced
solution sequences such as linear and nonlinear static,
transient dynamic, steady state dynamic, frequency extraction, heat
transfer, and other analysis types, provide a choice of appropriate
analysis types for different types of simulations. |
• |
Support
for standard manufacturing process effects such
as casting induced warpage and residual stress and strain. |
• |
Integration
with specialized fatigue applications such as Winlife,
which is available as an add-on to the NEi Nastran product suite
and also fe-safe, nCode, Falancs
and FE-Fatigue. |
|
| Case
Histories in Civil Industry |
| |
| Product
Demonstration Options and Information |
| |
| |
Customer Feedback