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Fractional viscoelastic models on time scales
Ribeiro, Carolina Paula Baptista; Antunes, P. J.The main goal of this work is the generalisation of fractional viscoelastic models on Time Scales, applying the Riemann-Liouville derivative to the Maxwell's viscoelastic constitutive law. We show that, in time scale, the solution found is also expressed through the Miller-Ross function.
Nonlinear 3D foot FEA modeling from CT scan medical images
Antunes, P. J.; Dias, Gustavo R.; Coelho, A. T.; Rebelo, F.; Pereira, TiagoA 3D anatomically detailed non-linear finite element analysis human foot model is the final result of density segmentation 3D reconstruction techniques applied in Computed Tomography (CT) scan DICOM standard images in conjunction with 3D Computer Aided Design operations and finite element analysis (FEA) modelling. Density segmentation techniques were used to geometrically define the foot bone structure and the ...
Hyperelastic modelling of cork-polyurethane gel composites : non-linear FEA imp...
Antunes, P. J.; Dias, Gustavo R.; Coelho, A. T.; Rebelo, F.; Pereira, TiagoThe CPGC – Cork-Polyurethane Gel Composite is a material that is mechanically characterized by non-linear elastic behaviour at large deformations. The non-linear behaviour can be modelled by hyperelastic constitutive models based on strain energy functions enabling a structured phenomenological framework for CPGC material modelling. The CPGC is a promising material for human comfort enhancement and dynamic damp...
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