Overview MSC.Nastran Basic is a subset of MSC.Nastran. MSC.Nastran Basic comprises linear statics, normal modes, and buckling analyses. Additional analysis options can be added for larger model size, dynamic response, heat transfer, nonlinear analysis, optimization, and other advanced capabilities

Powerful analysis capabilities: v Linear statics, including inertia relief

v Normal modes

v Buckling

v Design sensitivity (statics, modes, buckling)

v Model Checkout

Complete element library: v 1D, 2D, and 3D low and higher order elements

v Scalar and special elements

v p-elements (can be combined with other elements)

v See Table 1 for a complete list

Table 1: Element types supported in MSC.Nastran Basic Element

Type Element Name Description

Scalar ELAS MASS

Scalar spring (several variations) Scalar Mass (several variations)

1D BAR BEAM BEND ROD, CONROD TUBE

Simple beam element Complex beam element including shear center offset and variable cross section Curved beam, pipe, or elbow Rod element Tension-compression-torsion element

2D QUAD4 QUAD8 QUADR SHEAR TRIA3 TRIA6 TRIAR

Quadrilateral plate with membrane-bending or plane strain behavior Higher-order quadrilateral shell element Quadrilateral membrane or shell Shear panel Triangular plate with membrane-bending or plain strain behavior Higher-order triangular shell element Triangular membrane or shell

3D HEXA PENTA TETRA

Six-sided solid element with 8-20 grid points Five-sided solid element with 6-15 grid points Four-sided solid element with 4-10 grid points

Rigid RBAR RBE1 RBE2 RROD RTRPLT

Rigid bar element Rigid body connected to an arbitrary number of grid points Rigid body with independent DOFs at a grid point and dependent DOFs at an arbitrary number of grid

points Pin-ended rigid rod Rigid triangular plate

Interpolation RBE3 RSPLINE

Defines the motion of a reference point as the weighted average of the motions at a set of grid points Multipoint constraints for the interpolation of displacements at grid points

MSC.Nastran Data Sheet Basic

Composites BEAM QUAD4 QUAD8 TRIA3 TRIA6

Complex beam element Quadrilateral plate Higher-order quadrilateral plate Triangular plate Higher order triangular plate

p-Elements HEXA PENTA TETRA

Six-sided solid element with 8-20 grid points Five sided solid element with 6-15 grid points Four-sided solid element with 4-10 grid points

Axisymmetric CONEAX TRIAX6

Conical shell Triangular cross section ring

Crack Tip CRAC2D CRAC3D

Two-dimensional crack tip element Three-dimensional crack tip element

General CONM1 CONM2 DMI GENEL

6-by-6 symmetric mass matrix Concentrated mass with offsets Direct matrix input General element

Full range of material models, including: v Isotropic

v Orthotropic

v Anisotropic

v Temperature-dependent

Easy combination and addition of load cases: v Point, line, and surface loads on elements

v Loads applied directly to geometry

v Thermal loads

v Enforced deformation

v Weighted combinations of each type

v See Table 2 for a complete list

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Table 2: Static loading types in MSC.Nastran Basic Load Type Load Name Description Point FORCE

MOMENT Concentrated force (several variations) Concentrated moment (several variations)

Curve GMLOAD PLOAD1

Load distributed along a geometric curve Concentrated, uniform, or linear load applied to 1D elements

Surface GMLOAD PLOAD

Load distributed along a geometric surface Pressure load applied to 2D elements or the face of 3D elements

(several variations) Volume GRAV

RFORCE Steady-state acceleration vectors Angular velocity or acceleration

Enforced Motion GMBC GMSPC SPC

Enforced displacements for geometry (curves and surfaces) Constraints applied to geometry Constraints applied to grid points (several variations)

Thermal TEMP TEMPP1 TEMPRB

Temperatures applied to grid points (several variations) 2D element temperature field 1D element temperature field

Axisymmetric FORCEAX MOMAX PLOAD1X PRESAX SPCAX TEMPAX

Concentrated force Concentrated moment Surface traction Pressure loading Constraints Applied temperatures

General DMI Direct matrix input Combination LOAD Combines load sets

Comprehensive array of eigensolvers: v Lanczos

v Givens, modified Givens

v Householder, modified Householder

v Inverse iteration with Sturm sequence checking

v All methods can analyze unconstrained models

Design sensitivity analysis for assessing desi gn changes: v Shape and sizing design variables

v Preset objective and constraints:

v weight, volume

v element stress, strain, force

v displacement, rotation, reaction force

v normal modes eigenvalue

v buckling load factor

v composites: lamina strain, force, and failure index

v User-defined objective and constraints

v Efficient handling of hundreds of design variables, constraints, and load cases buckling in a single run

Efficient solvers: v Sparse matrix solvers for faster speed and minimal disk

space usage

v Automatic internal resequencing for bandwidth reduction

v Restarts to take advantage of previously computed solutions

v Parallel and vector processing

Trusted answers with MSC.Nastran:

v More than 25 years of use by industry

v Formal, certified QA program

v More than 5000 test problems run for every release

v Extensive solution diagnostic messages

We get you started and keep you going: v Training--preset and custom classes

v Online documentation for workstations and PC’s

v Local hotline support by qualified engineers

v Newsletter with information articles

v Yearly worldwide users’ conferences

MSC.Software provides the industry’s most comprehensive support system with over 50 offices worldwide to provide local and centralized support. Investing in MSC.Software gives you access to extensive client support through comprehensive documentation, direct technical expertise, and customized training classes. To find your local MSC.Software office or to learn more about our company and our products, please contact:

Corporate: MSC.Software Corporation 2 MacArthur Place Santa Ana, California 92707 USA 1 714 540.8900 Fax: 1 714 784.4056 Information Center: 1 800 642.7437 ext. 2500 (U.S. only) 1 978 453.5310 ext. 2500 (International) Worldwide Web - www.mscsoftware.com On - l ine Purchases - www.engineer ing-e.com On - l ine Simulat ion - www.simulationcenter.com Europe: MSC.Software GmbH Am Moosfeld 81829 Munich, Germany 49 89 43 19 87 0 Fax: 49 89 43 61 71 6 Asia-Pacific: MSC Japan Ltd. Entsuji-Gadel ius Bldg. 2-39,Akasaka 5 -chome Minato -ku, Tokyo 107-0052 Japan 81 3 3505 0266

Fax: 81 3 3505 0914

MSC is a r e g i s t e r ed t rademark o f MSC.So f tware Corpora t i on . Nastran i s a r eg i s t e r ed t rademark o f NASA. Al l o ther trademarks are propert i es o f the ir respec t ive owners . All spe c i fi c a t i on s a r e sub j e c t t o c hang e w i thou t no t i c e . ©2001 MSC.Sof tware Corpora t ion NA*5/01*Z*Z*Z*LT -DAT-BASIC