Mechanical Engineering, Indian Institute of
Science, Bangalore 560 012, India Optimization hinders evolution! BE 205
Introduction to Biomechanics of Solids
Jan.-May., 2016
Instructors: G. K.
Ananthasuresh, Room 106, ME Building, suresh at
mecheng.iisc.ernet.in
Teaching assistant: Varsha Vasudevan, varsha at cns.iisc.ernet.in
Lectures: Tu, Th: 02:o0 pm - 03:30 pm;
Venue: MRDG classroom, Ground floor, Biological Sciences Building
Homework #5
Assigned: Feb. 18th, 2016
Due: Feb. 25th, 2016
Points: 50 Additional points for work that is beyond instructor's expectation!
25 points
Solve the esophagus problem of homework #4, problem 2 using COMSOL (or any other finite element analysis) software.
Compare the FEA results with your analytical results
Use non-linear geometry (large displacement, rotation) option in FEA and compare linear and nonlinear results. Increase internal pressure to
see the difference between linear and nonlinear responses.
25 points
Consider a long beam with ellipsoidal cross-section fixed at one end and free at the other, and do finite element analysis for the following cases:
Apply axial force at the free end
Apply torque at the free end
Apply transverse force at the free end along two principal axis directions of the cross-section (two cases here!)
Apply them in various combinations
In all case observe stress countours and maximum normal stress, maximum shear stress, and maximum von Mises stress. Compare with analytical results. Create a table where FEA results and analytical results are compared for the three maximum stresses noted above.
