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Featured researches published by P. Stanak.


Archive | 2014

Three-Dimensional Meshless Modelling of Functionally Graded Piezoelectric Sensor

P. Stanak; J. Sladek; V. Sladek; A. Tadeu

A meshless local Petrov-Galerkin (MLPG) method to analyse the electro-elastic response of functionally graded piezoelectric circular sensor is proposed. In this approach the analysed body is discretized using nodal points only, no finite element mesh is required. The moving least-squares (MLS) scheme is employed for the spatial approximation of unknown physical fields in terms of corresponding nodal quantities. Three-dimensional modelling enables asymmetric loading patterns to be used. The exponential gradation of material properties is proposed in the poling direction of the sensor. The effect of varying gradation coefficients on mechanical displacements and induced electric potential is investigated.


Journal of Intelligent Material Systems and Structures | 2015

Meshless analysis of piezoelectric sensor embedded in composite floor panel

P. Stanak; A. Tadeu; J. Sladek; V. Sladek

Piezoelectric materials are the key element in various sensors and sensory devices used in industry and research. In this article, we use the meshless local Petrov–Galerkin method to analyze a three-dimensional piezoelectric sensor that is embedded in a composite floor panel. Temporal variation of panel deformation is determined analytically and then prescribed as a boundary condition for the sensor. In the proposed formulation, quasi-static governing equations for the electric field and elastodynamic equations for mechanical fields are coupled together. Local integral equations are derived from the local weak form of the governing equations, using a Heaviside step function as the test function. Nodal points are distributed in the analyzed domain, and each node is the center of a small subdomain of spherical shape. The spatial variations of the displacement and electric potential are approximated by the moving least squares scheme. A system of ordinary differential equations is obtained after evaluation of all spatial integrals. The Houbolt finite-difference scheme is applied to solve this system of ordinary differential equations as a time-stepping method. The temporal variation of the induced electric field is finally obtained. It is shown that significant peak amplitudes of the electric field are detected at the top of the sensor.


Cmes-computer Modeling in Engineering & Sciences | 2013

Applications of the MLPG Method in Engineering &Sciences: A Review

J. Sladek; P. Stanak; Z-D. Han; V. Sladek; Satya N. Atluri


Engineering Structures | 2013

Analysis of the bending of circular piezoelectric plates with functionally graded material properties by a mlpg method

J. Sladek; V. Sladek; P. Stanak; Chuanzeng Zhang; Michael Wünsche


Cmes-computer Modeling in Engineering & Sciences | 2012

Laminated Elastic Plates with Piezoelectric Sensors and Actuators

J. Sladek; V. Sladek; P. Stanak; P.H. Wen; Satya N. Atluri


Engineering Analysis With Boundary Elements | 2014

Coupled BEM–MLPG acoustic analysis for non-homogeneous media

A. Tadeu; P. Stanak; J. Sladek; V. Sladek


Cmes-computer Modeling in Engineering & Sciences | 2010

The MLPG for Bending of Electroelastic Plates

J. Sladek; V. Sladek; P. Stanak; E. Pan


International Journal of Solids and Structures | 2017

Fracture mechanics analysis of size-dependent piezoelectric solids

J. Sladek; V. Sladek; P. Stanak; Chuanzeng Zhang; C. L. Tan


Engineering Analysis With Boundary Elements | 2017

Modeling elastic wave propagation in fluid-filled boreholes drilled in nonhomogeneous media: BEM-MLPG versus BEM-FEM coupling

A. Tadeu; A. Romero; P. Stanak; J. Sladek; V. Sladek; P. Galvín; J. António


Engineering Analysis With Boundary Elements | 2015

2.5D elastic wave propagation in non-homogeneous media coupling the BEM and MLPG methods

A. Tadeu; P. Stanak; J. António; J. Sladek; V. Sladek

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J. Sladek

Slovak Academy of Sciences

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V. Sladek

Slovak Academy of Sciences

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A. Tadeu

University of Coimbra

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E. Pan

University of Akron

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Michael Wünsche

Slovak Academy of Sciences

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A. Romero

University of Seville

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