Steven Doyle

[cquad4_pcomp_center.txt](https://github.com/MYSTRANsolver/MYSTRAN/files/14764392/cquad4_pcomp_center.txt) [ctria3_pcomp_center.txt](https://github.com/MYSTRANsolver/MYSTRAN/files/14764393/ctria3_pcomp_center.txt) Stress/strain is though. Mystran indirectly calls out bar strain as not being supported, but not similarly for composite plate forces ("Element engineering ... forces for any defined set...

Strain energy is super useful. Please add. The frequency stuff is not applicable, but THRESH is super useful to avoid small strain energy output. Either way is fine for v1...

Bar strains are not calculated

2

Stresses are weirdly fine though. [BAR-I12.txt](https://github.com/MYSTRANsolver/MYSTRAN/files/14752365/BAR-I12.txt) 

Error messages get really bad otherwise [cquad4_bad_quality.txt](https://github.com/MYSTRANsolver/MYSTRAN/files/14763441/cquad4_bad_quality.txt) Per the F06  The BUG file has some useful data, but there are no NAN checks 

In 2017, MSC added a second line option for the PLOAD2. NX has not added this, but since it's a easy thing to do to improve compatibility, why not? 

nodal stresses/strains are not calculated for solid elements

1

This should be a pretty straightforward recovery given the stresses should be calculated at the integration points exactly. Stresses should then be extrapolated to the nodes. Not having this makes...

Mass is given in the basic frame vs. the node's local frame. This is inconsistent with MSC/NX Nastran. The BDF is attached.  [op2_plot_mass_bug.txt](https://github.com/MYSTRANsolver/MYSTRAN/files/14275348/op2_plot_mass_bug.txt)

OP2: modal CBAR not written written with analysis code = 2

2

cbar_stress[(1, 1, 1, 0, 0, '', '')] type=RealBarStressArray nelements=4 data: [1, ntotal, 15] where 15=[s1a, s2a, s3a, s4a, axial, smaxa, smina, MS_tension, s1b, s2b, s3b, s4b, smaxb, sminb, MS_compression] data.shape...

Currently we're only handling the case where N is defined. It's very common to use a range as well, which requires a dynamic number of modes as output. We don't...

OFFT defaults to GGG and allows an alternate interpretation for that vector. It supports G0 and x/v. Note that older versions of NX do not support OFFT. MSC/NX QRG: ...