Laboratory of Computational Mechanics – Research Activities

• 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

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

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)

Mechanical Loading• Lateral Load

• Contact Piston-Pin (mN)

• Plastic StrainElasto-Plastic Cycle

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

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

Nonlinear dynamics

Research projects supervised by Carlos E.N. Mazzilli

Computational nonlinear dynamics

• Implementation of nonlinear dynamics formulation in FEMOOP (FEM Object Oriented Program) & Proper Orthogonal Decomposition (POD)

• Pellegrino Neto; PhD thesis in preparation

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

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

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

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

Nonlinear multimodes

• Evaluation of nonlinear multimodes of vibration in finite element models of planar frames

• Baracho Neto; PhD thesis in preparation

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

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)

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

Experimental Investigation

Development of new test methods

Characterization of Quasi-Brittle materials

Structural elements – FM approach

Numerical Modelling

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• 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