The 11.1 version of MD Nastran is available as a free download on our website. The most popular versions among MD Nastran users are 11.1, 10.1 and 6.0. You can launch this free PC software on Windows XP/7/8/10 32-bit. This free program is an intellectual property of MSC.Software Corporation. This download was checked by our antivirus and was rated as virus free. The software lies within Photo & Graphics Tools, more precisely 3D Design. The default filenames for the program's installer are mdnastranw.exe or nastranw.exe etc.
From the developer:
MD Nastra is a powerful Finite Element Analysis (FEA) solver. This applications simulates stress, dynamics and/or vibration of real-world complex systems. MD Nastran is the best application of its type because it’s the most reliable and accurate one and its certified by FAA.
You may want to check out more software, such as MDS Manager, NX Nastran or Net MD Simple Burner, which might be similar to MD Nastran.