The sort of software flaw that would cause the application to not crash, but to mysteriously micalculate some load/shear/whatever limit seems unlikely. Numeric

The sort of software flaw that would cause the application to not crash, but to mysteriously micalculate some load/shear/whatever limit seems unlikely. Numeric instability is not only possible, but downright common in application software. You don't need exotic floating point issues to cause it.