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support@mecway.com
Mecway
FEA
Version 9 beta
Mecway 9 beta is available at the link below. This doesn't have many major changes but a lot of small improvements. I welcome any feedback on bugs and the changes but probably won't add any new features. For existing customers, it automatically activates if you already have an earlier version activated.
http://mecway.com/download/mecway90beta2.msi
http://mecway.com/download/mecway90rc.msi
Final release of version 9: http://mecway.com/download
Changes, roughly in decreasing order of significance:
Final release of version 9: http://mecway.com/download
Changes, roughly in decreasing order of significance:
- 24 bug fixes
- Customizable default model allows you to begin with commonly used units/materials/solution variables/etc. (Tools → Options → Default model)
- Element axes can be defined by formulas as a function of position. It uses a new interface under Loads & Constraints.
- Stress is available for modal vibration without stress stiffening with both CCX and internal solvers.
- Faster opening of big files saved with this version.
- Radiation in thermal transient for CCX solver (*RADIATE)
- Rayleigh damping for CCX solver.
- Thermal contact conductance (*GAP CONDUCTANCE) for CCX solver.
- Elastic option in bonded contact for CCX. Uses *CONTACT PAIR.
- Contact stress and displacement outputs for CCX solver.
- Hydrostatic pressure for small displacement with the CCX solver.
- Rectangular tube beam section (BOX) for CCX solver.
- Line3 beam elements are exported to CCX as B32R instead of B32.
- New bending moment solution variable that uses a more consistent sign convention.
- Removed Rotate element axes from Rotate/copy because cylindrical coordinates can now be done using a formula.
- Tables can be suppressed per configuration so they can be written to different csv files.
- Von Mises stress appears by default if no solution field variables are specified.
- Button to import gmsh commands from a file.
- “Copy data” context menu item for graph.
- A new Solution menu that contains all the post-processing items.
- Warning if common field variables (displacement, stress, external force, temperature) are omitted with the CCX solver.
- Configuration name is appended to the .inp file name for CCX to distinguish multiple configurations.
- Paint select brush size is smaller to make finer selecting easier.
- Element values are the default instead of node values for stress in element coordinates and beam/truss/spring internal force/moment.
- Thermal steady state with radiation and no fixed temperatures automatically uses a lower relaxation factor to help it converge.
- Deprecated 2nd orientation for beams in static 2D.
- Field variables in the outline tree are listed in the order they were created, not alphabetically.
- Solution variables that are only for beams are indicated with “(beams)” on the menu.
- Using the hole tool on an isolated node shows a helpful error message.
- Mesh tools → Fit to curved surface defaults to cylinder.
- Error message for orthotropic and anisotropic material properties that lead to a non-positive-definite material stiffness matrix.
- Extrude defaults to 1 subdivision on first use instead of 0.
- Spring constant in *SPRING always has a decimal point to suit CCX 2.13’s requirement.
- Double click to insert field variable in formula.
- Element topology errors (red X) also include collapsed elements.
- Beams in deformed view are displayed with their end faces rotated about all 3 axes, not just the longitudinal one.
- “longitudinal stress” moved to “stress in element coordinates”
- More readable names for *AMPLITUDE, *NSET, etc. in generated .inp files.
- Frictionless support in the internal nonlinear solver no longer changes direction to follow the surface direction.
- Refine custom shows a warning at or above the maximum number of subdivisions (40).
- “Move surfaces together” option in bonded contact rename to “*TIE”.
- “tensile force” renamed to “axial force”
- Error message for invalid number of nodes in .vol file element.
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Comments
Thanks
If not, can you show a screenshot of when it fails?
It looks like your included ccx version 2.11 is multi-threading although it didn't labeled with "MT". The "CCX Output" showed multiple CPU being used.
I checked/compared yours against Kwip's complied ccx_2.14_MT on many different linear static analysis and the results are about the same and as fast to solve.
I also re-checked the linear buckling inconsistent issues we had with "MT" ccx version and it still exist for Kwip's ccx_2.14_MT but doesn't exist for your "ccx.exe". Your are consistent when I run multiple times (more than 10 times with 10 modes). This is great news.
It's based on the General Electric version. I heard from a former colleague of the guy who compiled it that he's quite smart
If someone can also verify this, it would be great.