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Identification of apple fruit-skin constitutive laws by full-field methods usin...
Campos, Teresa Daniela Azevedo; Araújo, Rafael; Xavier, José; QUYEN, NGUYEN-TRONG; Dourado, N.; Morais, José; Pereira, FábioThe protective and preservative role of apple skin in maintaining the integrity of the fruit is well-known, with its mechanical behaviour playing a pivotal role in determining fruit storage capacity. This study employs a combination of experimental and numerical methodologies, specifically utilising the digital image correlation (DIC) technique. A specially devised inverse strategy is applied to evaluate the me...
On the evaluation of strain energy release rate of cement-bone bonded joints un...
Campos, Teresa Daniela Azevedo; Barbosa, M. L. S.; Martins, M.; Pereira, F. A. M.; de Moura, M .F .S. F.; Quyen, Nguyen-Trong; Zille, AndreaBone cements based on poly(methylmethacrylate) (PMMA) are primarily used in joint replacement surgeries. In the fixation of joint replacement, the self-curing cement fills constitutes a very important interface. To understand and improve the interaction between cortical bone and bone cement it is essential to characterize the mechanical properties of cement-bone bonded joints in full detail. In this study, the ...
Osteosynthesis metal plate system for bone fixation using bicortical screws: nu...
Olmos, Andrea Alexandra Rodrigues; Fertuzinhos, Aureliano Costa; Campos, Teresa Daniela Azevedo; Dias, R. Isabel; Viegas, A. Carlos; Pereira, F. A. M.This study reports the numerical and experimental characterization of a standard immobilization system currently being used to treat simple oblique bone fractures of femoral diaphyses. The procedure focuses on the assessment of the mechanical behavior of a bone stabilized with a dynamic compression plate (DCP) in a neutralization function, associated to a lag screw, fastened with surgical screws. The non-linear...
Fracture characterisation of bone-cement bonded joints under mode I loading
Campos, Teresa Daniela Azevedo; Barbosa, M. L. S.; Olmos, Andrea Alexandra Rodrigues; Martins, Marcos Silva; Pereira, F. A. M.; de Moura, M. F. S. F.Over the years, many techniques have been developed for the stabilisation of bone fractures. The study of the adhesion of bone-to-bone cement is an important step towards the development of new immobilization systems. Although bone cement has been used for more than fifty years, very few studies have been performed regarding the evaluation of fracture properties. In this work, numerical and experimental investi...
Evaluation of quasi-static and fatigue properties of cement-bone bonded joints ...
Campos, Teresa Daniela AzevedoBone is a material with a complex, anisotropic, hierarchical and heterogeneous microstructure, which gives it a remarkable mechanical performance. However, as it is sometimes exposed to very adverse demands resulting from the interaction with the environment, it tends to develop damage, culminating in fracture. Fractures in long bones sometimes result from fatigue loads during numerous daily activities. These f...