What's new
7.7.1
Bug Fixes
- » Installer has updated URLs for downloading dependencies
- » Minor corrections to the manual
- » Face loads for axisymmetric elements in dynamic response are re-enabled
7.7.0
New Features
- » Stress stiffening (pre-stress) for 3D modal vibration
- » Thermal strain for frame elements
- » Modal response can have multiple applied loads
- » A greater number of time steps can be solved using decimation to save memory
- » Point loads can be defined by math expression as functions of time
- » Various improvements in convenience and clarity
Bug Fixes
- » Copy to clipboard, print and save as image now work with other windows open
- » Error in modes for some axis-aligned solid elements in modal vibration
- » Merge Nearby Nodes failed with an error message in some cases
- » Inaccuracy in Quad9 elements with gravity loading or dynamic response
- » Gravity loading on triangle elements in dynamic response
- » Corrected display of node force arrows and thermal strain temperatures
- » Selecting faces of quad8 and tri6 elements no longer includes the edges of adjacent elements
- » Improved accuracy of shell elements with twisted shape
Removed Features
- » Initial displacements and velocities in Modal Response
7.6.0
New Features
- » Thick shell elements (quad8) for modal vibration
- » 2D and 3D automeshing of existing models or regions defined by their boundaries
- » Automesher can generate quadrilateral and quadratic elements
- » Tool to extract a surface mesh from a volume mesh
- » STL ASCII file support
- » Save non-triangle meshes as STL. Automatically generates surface triangles
- » Enhanced element subdivide, change shape and template tools
- » Non-Newtonian fluid velocity formulation uses clearer labels
- » Optional convergence tolerance and relaxation factor for all iterative solvers
- » Iterations within timesteps for increased accuracy with thermal radiation analyses
- » Solver memory and speed improvements
Bug Fixes
- » Display problems for some pipe and resistor element orientations
- » Very small elements no longer produce topology errors
- » Non-Newtonian velocity formulation - Corrected viscosity calculation
Removed Features
- » ActiveX interface - LisaAction() function
- » .dat and .vfd file formats
- » Temperature dependant heat transfer coefficients for convection
7.5.1
Bug Fixes
- » Displays face load arrows that are parallel to the X axis
- » Clean appearance of font in the postprocessor color key
7.5.0
New Features
- » Display supports a wider range of dimension scales (1e-18 ~ 1e+18) and more extreme aspect ratios
- » Thermal shell elements
- » Equation driven curve generator with predefined or user-specified shapes
- » Tape measure tool to show distances between nodes
- » Increased number of elements can be refined
- » Origin symbol indicates the available axes for 2D, axi-symmetric, 3D
- » Transparent backgrounds on text such as node numbers
- » Clearer dialog box for Cylindrical Fit
- » Coupled DOF - Added an ‘All matching pairs’ option to quickly couple all DOFs of two nodes together
- » Centrifugal force for static frames and trusses
- » Save screen-shots in PNG format
- » Mouse click node and element info appears near the mouse cursor
Bug Fixes
- » Contour plot - Blackened highest field value corrected
- » Print and copy to clipboard now work with 16bpp color depth
- » Temperature dependant material properties can be applied in steady state analysis without any radiation boundary conditions
- » Non-averaged field value display doesn’t show averaged values on elements that don’t have non-averaged values
- » Extruding an end face of a line element is no longer allowed. Previously it generated invalid elements.
- » ActiveX interface - PostProc() command shows the window if it wasn’t already open.
- » Face loads of force/length in local coordinates on frame elements are now displayed as U,V,W instead of X,Y,Z
- » Time Step Load List won’t create invalid loads at time steps beyond the maximum specified in the model.
- » Thermal transient with radiation and initial temperatures
Removed Features
- » Tools for creating quad12 elements: New element, refine custom, change shape
- » Node line, Node arc, Cylinder, Cone, Polyshell, Elbow, Miter bend. The curve generator replaces these
- » Electromagnetic Waves in a Waveguide analysis type
7.4.1
New Features
- » Added a clarifying note in the error message if a 24bpp video mode is used.
Bug Fixes
- » Spring elements in static analysis now ignore the ‘truss’ flag. 7.4.0 required it to be set.
- » When clicking a node in the post processor, the displayed value disappeared after releasing the mouse button. Now it persists.
7.4.0
New Features
- » Open Cracks view option
- » Orientation triad for convenient rotation to orthogonal and isometric views
- » The post processor uses the same window as the modeller
- » 3D frame orientation can be defined by a vector
- » Shell local axis orientation can be specified
- » Local axes display for shells and 3D frames
- » Rotational DOF release for 3D frames in static. A convenient way to
create pin joints
- » Polyline tool allows node coordinates or offsets to be specified as
well as by mouse clicking
- » Save to STL binary format. Only writes tri3 elements
- » Line loads in global coordinates for static 3D frame/truss, and
buckling 3D truss
- » Line loads in local coordinates Static 3D frames
- » Centrifugal force for membranes and axi-symmetric elements in static analysis
- » Wedge6 element for transient thermal analysis
- » 3D frames can use predefined section shapes in modal vibration and
modal response
- » Material names
- » Nodes can be selected in the post processor to restrict the table display
- » Faster shell matrix assembly
- » More accurate color names for element groups
- » Element group tree shows both the model and the solution
- » Trimetric view changed to isometric
- » Hide Interior toolbar button
- » Local element coordinate system axis names changed from x,y,z to U,V,W
for frame and shell elements
- » Default shell orientation now has the local U-axis along face 1
Bug Fixes
- » Shows matrix/vector output filenames in global properties dialog
- » Non-zero constraints in load cases above 1 now work
- » Hollow rectangular tube uses the correct cross-sectional area
- » Hide interior option no longer hides the center node of quad9 elements
- » Accuracy improved for quad9 axi-symmetric element in static analysis
Removed Features
- » View Direction menus
- » Toolbar buttons for ‘subdivide quad’ and ‘2D templates’
- » Drag-drop merging of element groups
- » Reduced integration option for membranes and axi-symmetric elements
- » Quad12 element deprecated. It can still be used but is marked as deprecated
7.3.0
New Features
- » Buckling analysis (linear eigenvalue) for 3D solid and 2D frame structures
- » Vector field visualization with arrows
- » View option to hide interiors of solids. Assists in selecting external faces.
- » Gradients calculated for these analysis types: transverse vibration of membrane, wave motion in basin,
electromagnetic waves in waveguide, and Acoustic waves
- » Node coordinates shown in table of results
- » Navier-Stokes: New solver is faster, more robust, allows larger models and no longer requires front
width optimization. Quad8 and tri6 elements can now be combined in the same model. Vorticity is calculated
- » Change shape: All quadratic elements can be converted to their linear equivalents, except line3.
Quad8->quad9 now places the center node in the best location for distorted elements. Quad9->tri6 option added
- » Element center dots are displayed automatically when required for mouse commands
- » Dynamic response solvers use much less memory and run faster.
- » Stress outputs for 2D plates
- » Surface mesh option for STEP and IGES meshing
- » Prescribed temperatures can specified at any time step in thermal transient analysis
Bug Fixes
- » Non-functioning orthotropic solid material now works
- » Corrections to laminate formulations
- » Solid elements with more than 8 nodes can now be combined with shells and frames in static analysis
- » Shells can now be combined with arbitrary local node orientations
- » Fixed missing principal stresses 2 and 3 for solid elements with special stress states
- » Rotational DOFs can now be coupled in static analysis
Removed Features
- » All ‘with gradients’ analysis types which are now redundant
- » Navier-Stokes equations: Non-functioning ‘start pressure’, effective viscosity, optimize front width
tool which is no longer needed, quad8 analysis types - these elements can now be used with tri6, body forces,
stream function vorticity formulation
- » Element center dot button
- » Sandwich plate
- » Hollow plate
