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1 – 2 of 2Daniel Dias Monnerat, José Antonio Fontes Santiago, José Claudio de Faria Telles, Flavio Cezario, Carlos Gouveia Riobom Neto and Edmundo Guimarães de Araújo Costa
The purpose of this study is to apply the Meshless Local Petrov–Galerkin (MLPG) method to solve the bending problems of linear viscoelastic plates, considering Reissner’s theory.
Abstract
Purpose
The purpose of this study is to apply the Meshless Local Petrov–Galerkin (MLPG) method to solve the bending problems of linear viscoelastic plates, considering Reissner’s theory.
Design/methodology/approach
The weak formulation for the set of equations that govern Reissner’s plate theory is implemented in conjunction with the integral formulation applied to viscoelastic constitutive expressions. A meshless method based on the Moving Least Squares (MLS) approximation is considered in the numerical implementation. The final equation system is assembled by adopting simple and efficient schemes for numerical integration, considering a simplified formulation through centralization of the local interpolation domains and Gaussian quadrature at the same field point. The results obtained are compared with available solutions to demonstrate the efficiency of the proposed formulation.
Findings
The hereditary integral approach proved to be the most general way to analyze the viscoelastic problem, especially when applied together with the modified scheme for numerical integration. In addition, the variable changing technique is demonstrated to be an efficient formulation for solving shear-locking effects in thin plate problems.
Originality/value
The differential of the present study is related to the manner in which the properties of linear viscoelastic materials are considered in the formulation. Although most authors consider this point through the application of the correspondence principle, the present study works with a hereditary integral formulation. In addition, the variable changing technique is applied to solve the shear-locking effects, and an alternative approximation technique is considered to speed up the numerical integration process.
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Elomar Castilho Barilli, Stenio Freitas Barretto, Carla Moura Lima and Marco Antonio Menezes
The aim of this paper is to present the use of virtual communities in work processes in Popular Education, a field strongly supported by presentiality because of historical social…
Abstract
Purpose
The aim of this paper is to present the use of virtual communities in work processes in Popular Education, a field strongly supported by presentiality because of historical social inequalities in Brazil. It presents the assessment of the Virtual Community Work (CVT) used in the Popular Healthcare Education Policy (PNEPS).
Design/methodology/approach
The exploratory research adopted two paths of analysis, one quantitative (using questionnaire) aimed to collect the participants’ perceptions regarding the navigation, tools and features of CVT, and the other qualitative through observation of the interventions in its different spaces, having discourse analysis as the technique for analysis.
Findings
The hands-on nature of Popular Education, revealed in the posts and in the speech of the participants, showed the potential and challenges of the territory and the need for change, both of the professional’s outlook on his or her own work process and working with health in the communities that are, still today, very centered around authoritarian models.
Research limitations/implications
Because the participation was not mandatory, the reduced number of participants was the main limitation of this work.
Practical implications
The health problems specified in the interactions and much discussed in CVT may help the consolidation of the policy as the main practical implication.
Social implications
Contribute to the creation of a network for the exchange of educational experiences in the field of Popular Education.
Originality/value
The innovating character of this work lies in the application of Virtual Community in the field of popular education within the health sector as a strategy for implementation of a national policy.
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