Comparative analysis between measures of strain in structures of bar

Comparative analysis between measures of strain in structures of bar

Authors

  • Lucas Dezotti Tolentino Universidade Estadual de Maringá http://orcid.org/0000-0001-7156-7926
  • Luiz Antonio Farani de Souza Universidade Tecnológica Federal do Paraná

DOI:

https://doi.org/10.5433/1679-0375.2019v40n2p161

Keywords:

Ftool, Strain measurements, Continuous mechanics, Finite element positional method

Abstract

The performance of structures is of fundamental importance within the structural design, however, the structure response when subjected to loading is a function of several variables. Structures are designed to meet ruin safety criteria and meet service conditions so that unacceptable damage to nonstructural elements does not occur and to ensure the effective part durability. The contribution of computational systems assists the analysis process, especially in the study of complex structural systems. Thus, this paper aims to apply concepts of continuum mechanics through four one-dimensional strain measurements on a bar requested by an axial tensile load and to verify their behavior in the face of increased load. Cauchy’s, Green’s, Logarithmic and Almansi’s strains were studied. It is concluded that, for small load increments, the difference between the numerical results obtained by the Ftool program and those obtained here were considerably close. However, with the consequent increase in loading, there was a large variation in the response of the bar regarding the displacement for the strain measurements. The displacements in the bar were obtained with the Finite Element Positional Method.

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Author Biographies

Lucas Dezotti Tolentino, Universidade Estadual de Maringá

Master student, Dpto. of Civil Engineering, UEM, Maringá, PR, Brazil.

Luiz Antonio Farani de Souza, Universidade Tecnológica Federal do Paraná

Prof. Dr., Coordenação de Engenharia Civil, UTFPR, Apucarana, PR, Brasil.

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Published

2019-12-18

How to Cite

Tolentino, L. D., & Souza, L. A. F. de. (2019). Comparative analysis between measures of strain in structures of bar. Semina: Ciências Exatas E Tecnológicas, 40(2), 161–168. https://doi.org/10.5433/1679-0375.2019v40n2p161

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Original Article

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