I have a cantilevered column type structure that I'm looking to reduce. I know I want the fixed boundary to be placed into the BSET, and to have enough spoints in the QSET, but I am confused on how to retain a select number of interior nodes and corner nodes (on the free end) that I can use to...
Say you have done a linear static unit load and wish to output contours of some linear varying metric like strain at a multitude of loads. A quick way would be to just derive a result by multiplying the unit load's results by a scalar. In Hyperview you can do this very easy through "derived...
I've always normalized so that the generalized mass is 1, but the Nastran lesson here (http://www.aerospacengineering.net/?p=2652) mentions that MAX normalization can lead to developing more intuition for what's going on based on the generalized mass. Can anyone explain what generalized mass...
I'm getting a contradiction in this book: https://books.google.com/books/about/Cold_Formed_Steel_Design.html?id=Bl2Ax7hNIIcC&printsec=frontcover&source=kp_read_button&hl=en#v=onepage&q&f=false
When designing a section, say an I-beam, you'd determine the critical buckling stress from the...
Anyone have an online resource for programming the transformation matrix for a 3D beam (or better yet, frame) element? I can only find one which omits the rotation of the axis along the beam to describe how the major and minor axes are defined.
I am trying to come up with the stiffness matrix for a 2D system of a frame-torsional spring-frame FE model to grow into a full 3D auto body "stick" model of frames and springs. In the past I've substituted the spring with a stubby beam of equivalent torsional stiffness for 2D, but I'd rather...
