Download or read book Proceedings of the NASTRAN (Tradename) Users' Colloquium (18th) Held in Portland, Oregon on 23-27 April 1990 written by and published by . This book was released on 1990 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASTRAN (NASA STRuctural ANalysis) is a large, comprehensive, nonproprietary, general purpose finite element computer code for structural analysis which was developed under NASA sponsorship and became available to the public in late 1970. It can be obtained through COSMIC (Computer Software Management an Information Center), Athens, Georgia, and is widely used by NASA, other government agencies, and industry. NASA currently provides continuing maintenance of NASTRAN through COSMIC. Because of the widespread interest in NASTRAN, and finite element methods in general. The Eighteenth Colloquium provides some comprehensive general papers on the application of finite element methods in engineering, comparisons with other approaches, unique applications, pre- and post-processing or auxiliary programs, and new methods of analysis with NASTRAN. Partial contents: A Nastran Trainer For Dynamics; Accuracy of the QUAD4 Thick Shell Element; Random Vibration Analysis of Space Flight Hardware Using NASTRAN; Low Velocity Impact Analysis with NASTRAN.