Cornell SimCafe Structures

This SimCafe Structures Learning Track was developed by Dr. Rajesh Bhaskaran at Cornell University in partnership with Ansys. It serves as an e-learning resource to integrate industry-standard simulation tools into courses and provides a resource for supplementary learning outside the classroom. The following courses show how to solve structural problems using Ansys Mechanical. These tutorial-based courses follow the same high-level steps; starting with pre-analysis and ending with verification and validation. The successful completion of these simulation courses will provide a thorough understanding of how to set up a Structural simulation using Ansys Mechanical.

The purpose of this SimCafe course is to showcase, in a relatively simple situation, where simple beam theory is no longer as valid as it is in the limit of a long and slender beam geometry.  In some commercial codes, simple one-dimensional cubic beam elements for bending deflection, do not capture shear deflection when the beam is no longer slender. Alternatively in Ansys, if shear deflection is accounted for in the 1D element formulation, results for the beam’s tip deflection will not agree with tip deflections predicted by simple Euler-Bernoulli beam theory. This course is meant to highlight where it is relatively straightforward to apply 3D FEA and resolve a correct solution.

Coronary Artery Disease kills nearly 1 in 4 Americans every year. Implantable stent treatments for arterial disease are constantly evolving with implantable stent innovations leading the way. Over 600,000 cardiovascular stents are implanted every year just in the United States alone. Stents may look relatively simple but are highly engineered lifesaving medical devices. It involves advanced material modeling, complex interaction with the arteries, and extremely high demand for accuracy. Apart from conducting experiments on stents, FEA is a tool that engineers and researchers use extensively to study and design stents. It has the ability to identify some mechanical characteristics of coronary artery stents that may not be easily obtained using traditional mechanical testing. In this SimCafe course, we will go step by step to set up and run a Balloon-Expandable stent simulation.   

A femur is the upper bone of the leg. In biomedical engineering, the mechanical properties of the femur can be studied through conducting tests on rat femur.  The valuable data from tests can then be applied in simulation to predict behaviors of other femurs.  In this SimCafe Course, we will show you step by step how to conduct a bending simulation on a rat femur and evaluate the results.