User:Eml4500.f08.team.foskey.ckf/hw7 combo

 Note:

Edit: The correct deformed truss/frame system was solved and the image is at the bottom. A more detailed and correct explanation of the image was also added.

Jin Yu Guan Eml4500.f08.team.guan 18:05, 10 December 2008 (UTC)

Two bar truss frame combination

Problem
This is a two bar system with element 1 being a frame member and element 2 being a truss member. It is being compared to the two truss system and the and two frame member system.

Code
This matlab code is similar to other codes, except it accounts for the rotational displacements and bending moments from element 1

Output
The above code creates the following output

Figure
The above code creates the following figure



In the figure, the red dotted lines are the undeformed truss, the green lines are the deformed truss and frame system, the solid dark blue lines are a deformed frame system. For the combination, element 1 is a frame member, and is on the left; element 2 is a truss member, and is on the right. As one can see, the frame members in all deformed instances are not linear. This is due to the transverse displacement of the beam. Thus, frames are designed to hold transverse loads and displacements as opposed to truss that only hold axial loads and displacement.