Murilo Sartorato
University of São Paulo
PiezoelectricityModal analysisComposite numberEngineeringFinite element methodCantileverComposite laminatesComposite materialBeam (structure)ActuatorPiezoelectric sensorIsotropyMaterials scienceStructural health monitoringShell (structure)Vibration basedVibration controlStructural engineeringShear (sheet metal)Smart material
13Publications
3H-index
65Citations
Publications 11
Newest
#1M. M. S. Vilar (USP: University of São Paulo)
#2Murilo Sartorato (USP: University of São Paulo)H-Index: 3
Last. M. R. Leite (USP: University of São Paulo)
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This paper proposes a numerical solution to deep beams using the layerwise displacement theory. Most of the methods for performing structural analyses of deep beams have geometric and boundary conditions limitations, as well as modeling inconveniences. This paper provides a finite element solution for deep beams based on a layerwise displacement field considering the full stress/strain tensors. In this formulation, the cross section is discretized in a pre-defined number of independent virtual l...
Source
#1Murilo Sartorato (USP: University of São Paulo)H-Index: 3
#2Ricardo de Medeiros (USP: University of São Paulo)H-Index: 9
Last. Volnei Tita (USP: University of São Paulo)H-Index: 19
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Abstract This work presents a computational model to simulate thin structures monitored by piezoelectric sensors in order to support the design of SHM systems, which use vibration based methods. Thus, a new shell finite element model was proposed and implemented via a User ELement subroutine (UEL) into the commercial package ABAQUS™. This model was based on a modified First Order Shear Theory (FOST) for piezoelectric composite laminates. After that, damaged cantilever beams with two piezoelectri...
12 CitationsSource
#1Murilo SartoratoH-Index: 3
Last. Marcelo Leite RibeiroH-Index: 7
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Source
#1Ricardo de Medeiros (USP: University of São Paulo)H-Index: 9
#2Murilo Sartorato (USP: University of São Paulo)H-Index: 3
Last. Volnei Tita (USP: University of São Paulo)H-Index: 19
view all 4 authors...
Abstract The basic concept of the vibration based damage identification methods is that the dynamic behaviour of a structure can change if damage occurs. Damage in a structure can alter the structural integrity, and therefore, the physical properties like stiffness, mass and/or damping may change. The dynamic behaviour of a structure is a function of these physical properties and will, therefore, directly be affected by the damage. The dynamic behaviour can be described in terms of time, frequen...
20 CitationsSource
#1Murilo Sartorato (USP: University of São Paulo)H-Index: 3
#2Ricardo de Medeiros (USP: University of São Paulo)H-Index: 9
Last. Volnei Tita (USP: University of São Paulo)H-Index: 19
view all 3 authors...
Abstract A formulation of a smart shell finite element for laminated curved structures with piezoelectric layers working under either the d31 or d33 effects has been developed in order to simulate dynamic tests. The electrical domain was modeled using a first order theory for the electrical field and a layer-wise approach. The mechanical domain is modeled using a degenerated shell theory with implicit curvature, considering a first order shear deformation theory and an equivalent single layer ap...
28 CitationsSource
#2Murilo SartoratoH-Index: 3
Last. Volnei TitaH-Index: 19
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Source
#1Murilo SartoratoH-Index: 3
#2R. de MedeirosH-Index: 1
Last. Volnei TitaH-Index: 19
view all 3 authors...
The study of smart materials for uses in the aerospace, aeronautics and petroleum industries has increased due to the potential of such materials for several applications such as structure health monitoring, damage identification, vibration control and/or suppression, energy harvesting, along with others. In particular, piezoelectric smart composite laminates - laminates made of fiber reinforced polymers in which some or all of the layers contain pie- zoelectric fibers - are widely studied for b...
3 CitationsSource
#1R de MedeirosH-Index: 1
#2Murilo SartoratoH-Index: 3
Last. TitaH-Index: 1
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1 Citations
#1Murilo SartoratoH-Index: 3
#2Volnei Tita (USP: University of São Paulo)H-Index: 19
The effects of transversal shear stresses on shell structures are partly governed by the thickness of the plate and are usually neglectable. In fact, in the most applications, thin plates are preferred. However, particularly in the aeronautical industry, there are some aircraft structures and dynamic analysis where the transversal shear effects are significant, such empennages due to their increased thickness in the leading edge due to bird-strike requirements - especially in composite fiber-gla...
#1Marcelo Leite Ribeiro (USP: University of São Paulo)H-Index: 7
#2Tulio Martins (USP: University of São Paulo)H-Index: 1
Last. Dirk Vandepitte (Catholic University of Leuven)H-Index: 45
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Composite materials are very attractive for structural applications due to its inherent mechanical properties and low density. However, during their service life, composite structures can be damaged by impact such as tool drop during assembly or maintenance. Several studies have been developed for impact on composite plates, but there are only few scientific investigations about impact on composite cylinders. This study presents experimental analyses of low energy impact on filament-wound cylind...
1 CitationsSource