Background
Portela, Artur Almeida was born on February 7, 1951 in Malange, Angola. Son of Artur Marreiros and Vina Sequeira Portela. arrived in Portugal, 1971.
- Photos
- Works
- Photos
- Works
book
Finite Elements Using Maple: A Symbolic Programming Approach Softcover reprint of edition by Portela, Artur, Charafi, A. (2012) Paperback
http://www.amazon.com/gp/product/B010WFHC62/?tag=2022091-20
Finite Elements Using Maple: A Symbolic Programming Approach (Engineering Online Library) by Artur Portela (2003-06-01)
http://www.amazon.com/gp/product/B01JXU0V9M/?tag=2022091-20
Dual Boundary Element Analysis of Fatigue Crack Growth (Topics in Engineering)
(This text describes the dual boundary element method and ...)
This text describes the dual boundary element method and its application to the analysis of fatigue crack-growth problems, in the context of the damage tolerance analysis with linear elastic fracture mechanics.
http://www.amazon.com/gp/product/1853121878/?tag=2022091-20
Crack Growth Analysis Using Boundary Elements
(The Boundary Element Method (BEM) is now widely regarded ...)
The Boundary Element Method (BEM) is now widely regarded as the most accurate numerical tool for the analysis of crack problems in linear elastic fracture mechanics. This "crack growth" software utilizes the BEM and and removes the task of remeshing as the crack propagates, which is one of the drawbacks of finite element software. Furthermore, it evaluates accurate stress intensity factors for which the BEM is renowned. The software uses the established criterion for crack propagation and evaluates residual strength as well as fatigue life calculations. The software features include the use of quadratic continuous and discontinuous elements, evaluation of boundary stresses, displacements and tractions, element or point constraint including skew constraints and mixed-mode path independent integrals for the accurate evaluration of stress intensity factors. The automatic crack propagation algorithm is implemented utilizing an incremental crack extension which employs a special solver to avoid resolution for each crack extendion. The fracture criterion is based on the maximum principal stress and the fatigue crack growth rates are calculated using established formulae. This software package is based on a formulation of BEM called Dual Boundary Element Method (DBEM). The DBEM retains all of the important features of BEM including: reduced set of equations, simple data preparation, accurate evaluation of stresses, and accurate stress intensity factors evaluation. The standard code is capable fo carrying out stress analysis as well as fracture mechanic scalculations for two-dimensional linear elastic isotropic materials. A special module allowing for modelling stiffeners, is also available with the code. In addition, two other versions of the program for analysis of anisotropic and thermoelastic crack grwoth problems are also available. These versions have the capabilities of th standard linear elastic isotropic code. The software package is accompanied by a user manual for data generation and the analysis program and a book "Dual Boundary Element Analysis of Crack Growth" describing the basic theory of BEM, along with several example problems.
http://www.amazon.com/gp/product/185312186X/?tag=2022091-20
Artur Almeida Portela
Edit ProfileMechanical engineering educator
Education
Degree in сivil engineering, Technology U. Lisbon, Portugal, 1975; research specialist, National Laboratory Civil Engineering, Lisbon, 1982; Doctor of Philosophy, Portsmouth (England) University, 1992.
Career
Researcher, National Laboratory Civil Engineering, Lisbon, 1975-1982; lecturer, Technology U. Lisbon, 1975-1978; teaching assistant, Technology U. Lisbon, 1976; professor, Technology U. Lisbon, since 1992. Consultant Computational Engineering Center, Lisbon, 1980-1982, Themag Engineering and CNEC Engineering, São Paulo, Brazil, 1984-1988. Board directors Advanced Technologies Inc., Lisbon.
Achievements
Works
book
-
Dual Boundary Element Analysis of Fatigue Crack Growth (Topics in Engineering)
(This text describes the dual boundary element method and ...)
-
Crack Growth Analysis Using Boundary Elements
(The Boundary Element Method (BEM) is now widely regarded ...)
- Finite Elements Using Maple: A Symbolic Programming Approach Softcover reprint of edition by Portela, Artur, Charafi, A. (2012) Paperback
- Finite Elements Using Maple: A Symbolic Programming Approach (Engineering Online Library) by Artur Portela (2003-06-01)
-
Dual Boundary Element Analysis of Fatigue Crack Growth (Topics in Engineering)
Membership
Member International Society for Computational Methods in Engineering (advising committee since 1984), International Directory of Engineering Analysts.
Interests
Connections
Married Eliane TeixeiraAlves, December 30, 1992. 1 child, Filipe Alves.
