The most frequent complication occurring after implanting silicone breast prostheses is the contracture of the fibrous capsule (FCC) that commonly forms within the first few months after surgery (Gylbert et al., 1990). Capsule formation around foreign materials that constitute any implanted medical device is a normal wound healing process whose aim is to isolate the implanted device from the su...

Of the plethora of work performed analyzing skeletal muscle tissue, relatively little has been done in the examination of its passive material properties. Previous studies of the passive properties of skeletal muscle have been primarily performed along the longitudinal material direction. In order to ensure the accuracy of the predictions of computational models of skeletal muscles, a better un...

Breast density is more and more considered as an important risk factor for breast cancer and several quantitative breast density evaluation methods have been proposed. The reference material for simulation of the breast attenuation properties of glandular and adipose breast tissues is manufactured by a single provider. In order to characterize the attenuation properties of these materials, meas...

The strength of bone is related to its mass and geometry, but also to the physical properties of the tissue itself. Bone tissue is composed primarily of collagen and mineral, each of which changes with age, and each of which can be affected by pharmaceutical treatments designed to prevent or reverse the loss of bone. With age, there is a decrease in collagen content, which is associated with an...

I present a list of issues that I consider important for the ECLOUD’04 Workshop to address. This list is necessarily incomplete, and reflects my points of view.

Computational models of the head can be used to simulate events associated with traumatic brain injury and to design protective equipment and environments. Accurate material property descriptions of biological tissues are crucial to the development of computational models that mimic human responses. Recent finite element models of adult head injury assign distinct homogeneous properties to whit...

With an increasing understanding of the aging process and the rapidly growing interest in minimally invasive treatments, injectable facial fillers have changed the perspective for the treatment and rejuvenation of the aging face. Other than autologous fat and certain preformed implants, the collagen family products were the only Food and Drug Administration approved soft tissue fillers. But the...

This paper discusses an approach for tailoring material properties in parts fabricated using Layered Manufacturing (LM). Solid model of the part is subdivided into various sub regions based on stress analysis. All subdivided regions are fabricated together by using Rapid Prototyping with process parameter values assigned as per their stress values. As mechanical properties are varying with proc...

In this paper, we explore haptic editing as a powerful way to enhance haptic realism. Building upon the framework of a previous implicit-based haptic technique, our haptic decoration technique allows the user to first paint directly on 3D models, and then to sense the thickness variation due to the added paint. Meanwhile, material editing permits the user to edit and feel local material propert...

Rheological material properties are high-dimensional function-valued quantities, such as frequency-dependent viscoelastic moduli or non-Newtonian shear viscosity. Here we describe a process to model and optimize design targets for such rheological material functions. For linear viscoelastic systems, we demonstrate that one can avoid specific a priori assumptions of spring-dashpot topology by wr...