Mitre bends of anisotropic material aren't calculated

[shaswin]

Why does PLE give a hard error during calculation of mitre bends of anisotropic materials?

A colleague of mine did got an error.

Mitre bends of anisotropic material aren't calculated. This error is listed in the Ple4Win manual.

I would think it would be theoritical possible to calculate it based on changed on the equivalent radius and weighing factors as a fictive mitre bend calculation.

But if one use mitre bends as kinks in polydif table and has anisotropic material it doesn't work...

[Dr. J Foerster]

The development of the mitre bend module is ongoing...
We started with isotropic, linear materials only. We are currently working on isotropic, non-linear material. Most likely we will look into anisotropic materials after that.

Developing mitre bends calculations for "special" materials is not trivial, the calculation model must generate results that are in line with not only known theory but also measurement results.

So Ple4Win can not yet calculate mitre bends with anisotropic material. One problem is that with anisotropic materials it is not possible to just say "oh, just calculate these as isotropic materials". There is no simple, automatic way to replace a given anisotropic material by a more or less equivalent isotropic material. That is something the user has to do.
(by the way, the "use a simpler material"-approach is used with non-linear materials, there the program continues through design function 5)

The program is clear about this situation, as early as in design function 3.1 an official warning is given (W310/15). Only if the material is not adjusted in that design function the program will stop the calculations in design function 5 with an error (E500/42).

I hope this clarifies the situation.