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Laboratory of Computational Mechanics – Research Activities.

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Presentation on theme: "Laboratory of Computational Mechanics – Research Activities."— Presentation transcript:

1 Laboratory of Computational Mechanics – Research Activities

2 42 Research Positions – Worskstations and PCs Two Large rooms Faculty – 20 Doctoral Students – 28 MSc Students –26 Undergraduate students involved in research - 12 Gives support to research and teaching in Computational Mechanics LMC – Laboratory of Computational Mechanics - Facilities

3 Funded by research agencies (FAPESP) Nonlinear Structural Dynamics ~USD 75,000 Teaching in Structural Engineering ~ USD 46,000 Research Projects developed in cooperation with Industry Piston Modeling – Mahle Metal Leve ~ USD 30,000 Consulting LMC – Laboratory of Computational Mechanics Research Projects

4 Example of Interaction with Indsutry – Piston Modeling Mahle Metal Leve - EPUSP Introduce Plastic Behavior of the material Model Complete Cycle Involved a Doctoral and a MSc student Research Team EPUSP: Prof. Miguel Luiz Bucalem Estela Mari Ricetti Bueno (Doctoral) Christian Hideki Furukawa (MSc)

5 Mechanical Loading Lateral Load

6 Contact Piston-Pin (mN)

7 Plastic Strain Elasto-Plastic Cycle

8 Research Cooperation Project developed with INRIA- Institut National de Recherche en Informatic et en Automatic - Roquencourt France Funded by CNPq and INRIA (ProTeM – CC) Reliability in modeling of thin structures Dr. Dominique Chapelle – Project Macs Locking in Shells

9 Development of Piezoeletric Shell Elements Issues: Locking and electrical variables Pos – Doc Dr. Martin Koegl

10 Nonlinear dynamics Research projects supervised by Carlos E.N. Mazzilli

11 Computational nonlinear dynamics Implementation of nonlinear dynamics formulation in FEMOOP (FEM Object Oriented Program) & Proper Orthogonal Decomposition (POD) Pellegrino Neto; PhD thesis in preparation

12 Nonlinear normal modes Evaluation of nonlinear normal modes of vibration in finite-element models of planar frames using the invariant manifold procedure Soares, Mazzilli; Computers & Structures 77 (2000) 485-493

13 Nonlinear normal modes Evaluation of nonlinear normal modes of vibration in finite-element models of planar frames using the method of multiple scales Mazzilli, Baracho Neto; Computers & Structures 80 (2002) 957-965

14 Model reduction in nonlinear dynamics Reduction of nonlinear finite-element models of planar frames using the nonlinear normal modes Mazzilli, Soares, Baracho Neto; Int. J. Solids Struct. 38 (2001) 1993-2008

15 Nonlinear multimodes Evaluation of nonlinear multimodes of vibration in systems with internal resonance using the method of multiple scales Mazzilli, Baracho Neto; APM (2002), Saint Petersburg, Russia Mazzilli, Baracho Neto; ICSV9 (2002), Orlando, USA

16 Nonlinear multimodes Evaluation of nonlinear multimodes of vibration in finite element models of planar frames Baracho Neto; PhD thesis in preparation

17 Passive vibration control in cable stayed bridges Comparative analysis of Tuned Mass Dampers (TMD) and Stayed Viscous- Elastic Dampers (SVED) in cable stayed bridges prone to wind induced flutter Butkeraitis; MSc dissertation in preparation

18 Design of stabilizing bars in three-axle buses Design of stabilizing bars taking into account their influence onto lateral inclination and load distribution per axle Vargas; MSc dissertation, EPUSP (2001) Vargas, Mazzilli; BT/PEF0110 (2001)

19 Grupo de Modelagem de Materiais Coordinator: Prof. Dr. Túlio Nogueira Bittencourt Post doctoral students: José Umberto Arnaud Borges PhD students: Antonio Carlos dos Santos Célio Oda Moretti Eduardo Parente Prado Luis Eduardo T. Ferreira Luís Fernando Kaefer Rafael Alves de Sousa Wang Taikang MSc students: Wayne Santos de Assis Gustavo de Assis Guello

20 Experimental Investigation Development of new test methods Characterization of Quasi-Brittle materials Structural elements – FM approach

21 Numerical Modelling Parallel processing Quasi-brittle and heterogeneous materials Constitutive models Lattice models Cracking cohesive LEFM Development of FEM software Simulation of evolutive bridge construction Development of educational tools


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