Damage and fracture evolution in brittle materials by shape optimization methods

G Allaire, F Jouve, N Van Goethem - Journal of Computational Physics, 2011 - Elsevier
This paper is devoted to a numerical implementation of the Francfort–Marigo model of
damage evolution in brittle materials. This quasi-static model is based, at each time step, on …

Active contours with free endpoints

H Schaeffer, L Vese - Journal of mathematical imaging and vision, 2014 - Springer
Image segmentation methods with length regularized edge sets are known to have
segments whose endpoints either terminate perpendicularly to the boundary of the domain …

Structural shape and topology optimization

F Jouve - Topology Optimization in Structural and Continuum …, 2014 - Springer
This chapter is the printed matter of a series of lectures on shape optimization given in Udine
(Italy) in June 2012. It is mainly focused on the optimal design problem in elasticity. It is well …

[PDF][PDF] Active arcs and contours

H Schaeffer - UCLA CAM Report, 2012 - ww3.math.ucla.edu
The level set method [31] is a commonly used framework for image segmentation
algorithms. For edge detection and segmentation models, the standard level set method …

Variational dynamics of free triple junctions

H Schaeffer, L Vese - Journal of Scientific Computing, 2014 - Springer
We propose a level set framework for representing triple junctions either with or without free
endpoints. For triple junctions without free endpoints, our method uses two level set …

An open level set framework for image segmentation and restoration using the Mumford and Shah model

R Mohieddine, LA Vese - Computational Imaging IX, 2011 - spiedigitallibrary.org
In two dimensions, the Mumford and Shah functional for image segmentation and
regularization 15 has minimizers (u, K), where u is a piecewise-smooth approximation of the …

Variational Models for Fine Structures

H Schaeffer - 2013 - escholarship.org
Mathematical models in imaging science attempt to understand and analyze the underlying
quantitative structure of images. The most popular mathematical techniques tend to center …

[PDF][PDF] Some Problems in the Mathematics of Fracture: Paths From Front Kinetics and a Level Set Method

CL Richardson - 2008 - digital.wpi.edu
This dissertation is focused on certain variational models of fracture. In engineering, the
design of structures that can resist cracking is an important goal, with implications for …