# 1.12 Release notes for SDT and FEMLink 7.0#

## 1.12.1 Key features#

SDT 7.0 is the only version compatible with MATLAB 9.2 (2017a), 9.3 (2017b) and 9.4 (2018b) mostly due to ongoing improvements of MATLAB graphics. Key changes of this release are

- A full rewrite and major extension of modal analysis graphical interfaces and documentation detailed in section 2.2. Step-by-step tutorials, such as section 2.2.2, include buttons of the form Run which you can use to execute a step. LSCF and stabilization diagrams are now supported.
- The new notion of docks corresponds to MATLAB docks where multiple figures are combined for a typical use. Currently supported docks are
- A major update of SDT GUI with most existing tabs ported to Java mode and necessary in docks. You can set the default tab to Java mode using sdtdef('JavaUI',1) or turn it off with sdtdef('JavaUI',0). User documentation of tabs can be found in section 8.2. Developer level documentation of GUI functions is now included in section 8.
- Use sdtweb('feplot','webbrowser') to bypass the not yet fixed MATLAB bug where the links within pages are not called appropriately.

Key changes for FEMLink are

- ans2sdt improved import of .cdb and support of contacts.
- nasread Direct import of EXTESOUT output to SDT superelement format. Continued enhancements of bulk and op2 reading. Initial support of .op2 format writing of responses.
- abaqus continued enhancements of .INP reading in particular for composites and superelements, contact, ... Significant writing enhancements.
- GUI import of models is supported with the FEMLink tab, section 8.2.2.

For MATLAB compatibility see section 1.12.3.

## 1.12.2 Detail by function#

This list is not yet complete.

basis | Clarified error for repeated BasId. New methods for multi-body transformations. |

cbush | major rewrite of documentation and introduced support commands for non-linear applications. |

comgui | comgui gui command clarifies robust opening of feplot, iiplot figures linked to projects. Robustness in presence of mixed MATLAB/Java figures was improved. |

fe_case | robustness enhancements in name matching. getFixDof implemented as subfunction to allow external calls. |

fe_cyclic | compatibility with multi-physic periodic problems was enhanced. |

fe_curve | Improved sweep generation and many minor improvements |

fe_def | many detail improvements on silent operation and robustness. SubResample command implements optimized resampling. |

fe_eig | tolerance strategy was changed in solver 5 for improved convergence. |

fe_exp | underwent a major revision allowing the use of MDRE and MDRE-WE algorithms with the use of reduced models as well as proposing associated energy displays. |

fe_load | Improved generality of DofSet case entries. |

fe_mk | Improved support of orientation maps in particular for stress computations. |

fe_quality | introduced a clean command to clean meshes in particular by straightening edges. |

fe_range | major improvement of GUI operations and stat commands. |

fe_reduc | Improved compatibility with parametric models, performance for large models, static correction in poorly conditioned cases. |

fe_sens | Major rewrite of TestBas tab section 8.2.4 and associated commands. |

TdofTable now supports callbacks Distance view and SensorZoom selection. | |

FEMLink | GUI operation is now supported. |

fe_stress | Corrected stress computation problems in bar1 elements. |

fesuper | SeRestit was enhanced for restitution of multi-body results. |

id_rc | Robustness enhancements for QualTable, see section 2.5.2 |

id_rm | new commands such as PermuteIO, ... |

ii_mac | Significant enhancements of GUI, context menus and docked operations. |

iimouse | Robustness enhancements in particular for multi-figure interactivity used in docks |

m_elastic | Continued extensions of orthotropic material support with orientation maps. |

polytec | Official support of Polytec file access interfacing. |

p_piezo | Bug correction in cases with material orientation. |

p_beam | Revised handling of 3D section views. |

sdtroot | Robustness enhancements for project handling and export to Word/PowerPoint. |

Evolution of Java tables with MATLAB changes. | |

ufread | Support of GUI operation. |

## 1.12.3 Notes by MATLAB release#

- MATLAB 8.0 (2012b) to 9.3 (2017b). SDT & FEMLink 7.0 are developed for these versions of MATLAB and are fully compatible with them. Minor incompatibilities with 9.4 (2018a) are associated with the new complex number handling in MATLAB and and will be fixed with SDT 7.1.
- For best performance, using MATLAB 9.0 (2016a) and higher is advised.
- For efficient FEM rendering, it is strongly advised to use HG2 (Matlab 8.4, R2014b).
- MATLAB 7.6 (2008a) to 7.14 (2012a). SDT & FEMLink 7.0 are being phased out but can be used for a number of operations.
- Earlier MATLAB releases are no longer supported.
- MATLAB 8.5 has known bugs in the handling of colorbar.