School of Civil Engineering

Isogeometric shell analysis of incremental sheet forming

Incremental Sheet Forming (ISF) is a manufacturing process in which a blunt moving tool is used to deform a sheet into the desired shape. ISF is an ideal option for rapid prototyping, small-batch production, and highly customized parts. However, simulation of ISF process using today's technology is computationally very expensive.


Isogeometric Analysis (IGA) is a relatively new computational method that has great potential to speed up the simulation. The interpolation functions employed by IGA are based on the spline-technology earlier adopted by the CAD industry. IGA is not only a superior alternative for simulating ISF but has potential to supersede the conventional Finite Element Method in many applications.


This research will investigate IGA for modeling ISF. In particular, the following questions will be answered:

How to make the simulations faster?

Does IGA improve the computational efficiency?

What kind of contact formulation is needed?

What kind of quadrature rule to use?

How much can the number of DOF's be reduced?

What is the maximum stable time step for IGA?

10:00am - 12:00pm

Monday, 3 April 2017


Room 250, Sir James Foots Building (47A), St Lucia Campus