The following material accompanies the MENG 421 lecture for April 28, 2004.

Lectures

- Stiffness matrix
- Beam problems Note: for all problems, use a W8 x 31 rolled shape, 100 inches long (per element)
- Simply supported beam with distributed load

Last time, two elementsSimpD2, Ansys

Four elements, but same length (200 in.) SimpD4, AnsysAssignmentdue today: Cantilever beam with two forces,Cant3, (9) | Matlab | AnsysAssignmentdue today: Ovrhanging beam with half uniform load,CantHalf, (15) | Matlab | Ansys- Converting uniform load to nodal load Simply supported | Cantilever
- Simply supported beam with distributed load, two elements
SimpD2| Matlab | Ansys- Triangular load, one element
Cantt, Ansys

Triangular load, two elementsCantt2, Ansys

Triangular load, two elements, incorrect SFBEAM command AnsysAssignment due Friday, April 30:Simply supported beam 200 in. long, triangular load.Triang, Ansys only, ω_{ 0}= 60 lb/in at center, zero at ends, use two elements

Solution: d_{ 2}= -0.2424 in., θ_{ 1}= -0.3788e-02 rad, SMAX = 7272.7 psi at center.

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Revised: April 30, 2004 -- Copyright © 1997-2004 ARMiller