Once you have downloaded the .pdf or .doc file and you are
ready to do the assignment, you must start the program by clicking
on 'Run Program.' Before you run the program, be sure you have
gone through the CMU Mini-FEA Tutorial. |
Brief Description of Assignments:
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4.1.1
(i) Conduct FEA for long slender bar with displacements fixed
at one end (cantilevered), and equal and opposite forces at
other end (moment); (ii) compare FEA normal stress at various
points in one cross-section with bending theory; (iii) find
deflection, slope (finite difference of displacement at neighboring
nodes), and curvature (finite difference of slope at neighboring
nodes); (iv) compare curvature with M/EI.
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4.1.2
(i) Conduct FEA for long slender bar with equal couples at two
ends, and balancing couple in center; (ii) compare FEA normal
stress at various points in one cross-section with bending theory;
(iii) find deflection, slope (finite difference of displacement
at neighboring nodes), and curvature (finite difference of slope
at neighboring nodes) and compare with M/EI.
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4.1.3
(i) Student is given the deformed mesh, and partial information
on loading: the bar is fixed at one end, has three applied couples
(known magnitudes, unknown locations and senses), and has a
specified maximum bending stress. By studying the deformed mesh,
the student can determine the direction of the curvatures, and
hence, the location and senses of the couples, and compare FEA
normal stresses with predictions of beam theory.
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