December 2006
New! DARWIN 6.0 production version is now available. Click here to see complete list of enhancements and new features including:
- New Analysis Mode for Titanium Hard Alpha Anomalies
- Probabilistic Treatment of Multiple AnomaliesCrack Formation Module
- 3-Dimensional Anomaly Modeling
- Production Inspection Capability
- Bivariant Stress Intensity Factor Solution for Corner Crack at Hole (CC10)
- Comprehensive Verification Checks
- Encryption Capability
- GUI Enhancements Including
- Extract Fracture Mechanics Plate Dimensions Directly From FEM
- Crack Animation Enhancement
- Report Generation Enhancement
- General GUI Enhancements
July 2005
New! DARWIN 5.2 production version is now available. Click here to see complete list of enhancements and new features including:
- New bivariant stress intensity factor solution for corner crack in plate (CC09)
- New bivariant stress 3D visualization capability
- Improved shop visit model
- Enhanced keyword support for DARWIN library files
December 2004
DARWIN 5.1 production version is now available. Click here to see complete list of enhancements and new features including:
- New stress intensity factor solutions
- 3D surface damage analysis enhancements
- General risk assessment code enhancements
- Unlimited number of load blocks
- Material file improvements
- Parallel processing capability
- GUI batch processing
- ANS2NEU enhancements
- Capability to execute ANS2NEU directly from GUI
- Finite element filtering
May 2004
DARWIN 5.0 production version is now available. Click here to see complete list of enhancements and new features including:
- Support for Mission Mixing
- Capability to define missions. The User has full control over order in which missions are analyzed in the Mission Mix
- Capability to define stress and temperature multipliers for application to a baseline load step
- Initial 3D Capabilities for Surface Damage Mode
- Capability to import and extract stresses from 3D finite element models
- Redesigned and Expanded Surface Damage Mode
- Additional K-solutions for off-set surface and corner cracks at holes: SC15, SC18, and CC08,
- Improved surface crack in plate solution (SC02)
- Enhanced parallelism between Surface Damage and Inherent analysis modes
- Support for multiple stress profiles in Surface Damage analysis mode
- For
1D Surface Damage analysis, the User now provides actual stress profile
values instead of gradient values (similar to Inherent analysis mode)
- The user interface is very similar for all analysis mode
- New DARWIN configuration file
- Electronic Help System enhancements
November 2003
DARWIN 4.2 production version is now available. Click here to see a complete list of enhancements including:
- DARWIN Analysis Code for Windows and Linux platforms
- DARWIN Analysis Code can be executed directly from the GUI
- Speed improvements in the stress processing capability
- Enhanced capability to fit stress gradients with polynomials
- GUI file management
December 2002
- A brief report related to TRMD Phase II activities is now available. To view it, go to the Publications page.
October 2002
- The DARWIN Tutorial has been updated to include new surface damage features associated with the 4.0 release.
August 2002
March 2002
April 2001
March 2001
February 2001
December 2000
- DARWIN 3.4 (beta version) released to Steering Committee for review.
November 2000
- Download
Demo - A demo version of DARWIN is now available on this web site. To
obtain a demo copy, follow the instructions on the Download Demo link.
- Tutorial Session - a beta version of the DARWIN interactive tutorial session is now available for review.
July 2000
- R&D
100 Award - DARWIN was selected as one of the 100 most technologically
significant new products and processes of the year by R&D Magazine.
For further details, visit the R&D Magazine Website.
- Steering Committee Members Page - provides a new section for DARWIN Steering Committee related activities and documents (password protected).
November 1999
DARWIN Version 3.3 Release. The following enhancements have been made:
- Graphical User Interface (GUI) enhancements:
- GUI can read uif/uof files with nonaxisymmetric elements.
- *.dat file can now be used to store GUI input
- *.out file now populates the input data screens so both input and output data are available during a GUI session.
- GUI
automatically places the crack in the highest stressed location of the
zone (note - crack location can be edited by the user).
- Modified color palette for setting zone colors.
- Risk Assessment Code Enhancements:
- Implemented Walker interpolation stress ratio format for several fatigue crack growth methods.
- Keyword GUI_VERSION used to ensure compatibility between GUI and risk assessment code.
- Added an "expiration" key.
- Users Guide:
- Online Users Guide added to DARWIN Web Site.
- Chapters 3, 5, 6, and 7 and Appendix H have been updated to reflect the new changes.
- Web Site Enhancements:
- Download Software - users can now download DARWIN3.3 directly from this site.
- Technical Support - users can contact us via the new DARWIN Hotline, or submit technical support questions using an online form.
- Bug Reports/FAQ - review the current Bug Report/ FAQ lists, or submit new bugs/questions using online forms.
July 1999
DARWIN Version 3.2 Release. The following enhancements have been made:
- Importance Sampling Method - accuracy and computation speed improvements.
- Graphical User Interface - post processing capabilities.
- Output file - additional fatigue crack growth and stress strain property information
- Code Verification - expanded validation test matrix includes several new computer platforms
- User Manual - new deterministic analysis results and fatigue crack graphs.
In addition, several new enhancements have been added to DARWIN based on comments and suggestions from current users.
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