File 
Deep Simply-Supported Beam 
Define a constraint: 
Define a response 
Define an Objective 
Define Constraints 
Define design variable links: 
Define Design Variables 
Define design variables for gauge (shell thickness) optimization: 
Define design variables for shape optimization: 
Define design variables for size optimization: 
Define design variables for topography optimization: 
Define design variables for topology optimization using solids: 
Define Responses 
Define the objective function: 
Defining an Optimization Problem 
Defining Free-shape Design Regions 
Defining Geometric and Material Properties 
Defining I/O Options 
Defining Loads and Boundary Conditions 
delay 
density 
densres 
deqatn 
desglb 
deshis 
Design Concept for a Structural C-clip - OS-2000 
Design Concept for a Structural C-clip with Minimum Member Size Control - OS-2005 
Design Concept for an Automotive Control Arm - OS-2010 
Design Constraints 
Design Variables 
Design Variables for Shape Optimization 
Design Variables for Size Optimization 
Design Variables for Topography Optimization 
Design Variables for Topology Optimization 
DESOBJ 
dessub 
desvar 
dim 
Direct Frequency Response Analysis of a Flat Plate - OS-1100 
Direct Matrix Approach 
Direct Transient Dynamic Analysis of a Bracket - OS-1120 
Discrete Design Variables 
Discrete Size Optimization of a Welded Bracket - OS-4030 
Discretizing the Geometry of the Structure 
displacement 
dlink 
dlink2 
DLOAD - Bulk Data Entry 
DLOAD (Subcase Information Entry) 
dmig 
dmigname 
dobjref 
Does the PC page file size affect the elapsed time for an OptiStruct job? 
doptprm 
DOPTPRM, CHECKER 
DOPTPRM, DDVOPT 
DOPTPRM, DELSHP 
DOPTPRM, DELSIZ 
DOPTPRM, DELTOP 
DOPTPRM, DESMAX or MAXITER 
DOPTPRM, DISCRETE 
DOPTPRM, DISCRT1D 
DOPTPRM, GBUCK 
DOPTPRM, MATINIT 
DOPTPRM, MAX_BUCK 
DOPTPRM, MINDENS 
DOPTPRM, MINDIM 
DOPTPRM, MINMETH (Not Supported in 8.0 or Later Versions) 
DOPTPRM, MMCHECK 
DOPTPRM, OBJTOL or CONV1 
DOPTPRM, TMINPLY 
dphase 
Draw Direction Constraints for Topology Optimization 
dresp1 
DRESP1 - Center of Gravity and Moments of Inertia Item Codes 
DRESP1 - Frequency Response Displacement, Velocity, and Acceleration Item Codes 
DRESP1 - Frequency Response Force Item Codes 
DRESP1 - Frequency Response Stress/Strain Item Codes 
DRESP1 - Responses and Attributes 
DRESP1 - Static Failure Item Codes for Composites