Zobrazeno 1 - 10
of 20
pro vyhledávání: '"E. B. Pires"'
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP
Very good results in infinitesimal and finite strain analysis of shells are achieved by combining either the enhanced-metric technique or the selective-reduced integration for the in-plane shear energy and an assumed natural strain technique (ANS) in
Publikováno v:
Finite Elements in Analysis and Design. 57:15-31
This work describes an algorithm and corresponding software for incorporating general nonlinear multiple-point equality constraints in a implicit sparse direct solver. It is shown that direct addressing of sparse matrices is possible in general circu
Autor:
Luciano Brito Rodrigues, Daniel Simões Lopes, João Folgado, Paulo R. Fernandes, E. B. Pires, Estevam Barbosa de Las Casas, Rafael Resende Faleiros, Geraldo Eleno Silveira Alves
Publikováno v:
Veterinary Surgery. 41:838-844
Objective To verify if the finite element method can correctly estimate the performance of polyacetal and polyamide 6 intramedullary nails in stabilizing a femoral fracture in calves and to estimate the performance of a polypropylene nail in same con
Publikováno v:
Computational Mechanics. 49:545-564
We derive the equations of the multiplicative decomposition in the context of finite strain plasticity with elastic isotropy and arbitrary (isotropic and anisotropic) flow rules. We include multiple surface yield criteria and mixed control of stress
Publikováno v:
Computational Mechanics. 48:385-406
The corotational method for frame-invariant elements is generalized to obtain a consistent large-strain shell element incorporating thickness extensibility. The resulting element allows arbitrary in-plane deformations and is distinct from the traditi
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
A previously developed model is used to numerically simulate real clinical cases of the surgical correction of scoliosis. This model consists of one-dimensional finite elements with spatial deformation in which (i) the column is represented by its ax
Autor:
João Folgado, Luciano Brito Rodrigues, E.B. Las Casas, E. B. Pires, Rafael Resende Faleiros, Daniel Simões Lopes, Paulo R. Fernandes
Publikováno v:
Computer Methods in Biomechanics and Biomedical Engineering. 12:683-690
The response of bovine bone to the presence of an implant is analysed with the aim of simulating bone remodelling in a developing model of a polymeric intramedullary interlocking nail for veterinary use. A 3-D finite element model of the femur diaphy
Autor:
Luisa Consiglieri, E. B. Pires
Publikováno v:
Multibody System Dynamics. 18:471-483
A mathematical model for the analysis of human motion is presented in this paper. This model is based on linkage dynamics in order to understand trajectory and internal moment of force coordination. Mobility at the base of the supporting limb is a cr
Finite element studies of the mechanical behaviour of the diaphragm in normal and pathological cases
Autor:
E. B. Pires, Susana Pinto, Daniel Simões Lopes, M.P.M. Pato, M. de Carvalho, N. J. G. Santos, Pedro M. A. Areias
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The diaphragm is a muscular membrane separating the abdominal and thoracic cavities, and its motion is directly linked to respiration. In this study, using data from a 59-year-old female cadaver obtained from the Visible Human Project, the diaphragm
Autor:
E. B. Pires, Luisa Consiglieri
Publikováno v:
Computer methods in biomechanics and biomedical engineering. 12(4)
A model for the ergometer rowing exercise is presented in this paper. From the quantitative observations of a particular trajectory (motion), the model is used to determine the moment of the forces produced by the muscles about each joint. These forc