Výsledky vyhledávání - "Jose Luiz Antunes de Oliveira e Sousa"

Design of reinforced concrete beams with steel fibers in the ultimate limit state

Autor: Juliana F Fernandes, Jose Luiz Antunes de Oliveira e Sousa, Thomaz Eduardo Teixeira Buttignol, Túlio Nogueira Bittencourt

Publikováno v: Revista IBRACON de Estruturas e Materiais, Volume: 11, Issue: 5, Pages: 1024-997, Published: OCT 2018
Revista IBRACON de Estruturas e Materiais v.11 n.5 2018
Revista IBRACON de Estruturas e Materiais
Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
Revista IBRACON de Estruturas e Materiais, Vol 11, Iss 5, Pp 997-1024 (2018)

This paper carries out a design analysis of reinforced concrete beams with steel fibers following the fib Model Code 2010 (MC 2010) procedures. The values obtained from the design calculations are compared with the experimental results of reinforced

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eb817867c8d9b8ec4a27bc26766dff1
https://doi.org/10.1590/s1983-41952018000500006

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An Effective Modal Approach to the Dynamic Evaluation of Fracture Toughness of Quasi-Brittle Materials

Autor: L. E. T. Ferreira, A. I. Silva, João Bento de Hanai, Jose Luiz Antunes de Oliveira e Sousa, Luiz Vicente Vareda

Publikováno v: Mechanics of Composite Materials. 53:211-228

A modal dynamic analysis is used as the tool to evaluate the fracture toughness of concrete from the results of notched-through beam tests. The dimensionless functions describing the relation between the frequencies and specimen geometry used for ide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::41db916ae20185648174e901e9df8513
https://doi.org/10.1007/s11029-017-9655-y

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A viscous-cohesive model for concrete fracture in quasi-static loading rate

Autor: Fábio Luis Gea dos Santos, Jose Luiz Antunes de Oliveira e Sousa

Publikováno v: Engineering Fracture Mechanics. 228:106893

This paper describes a strategy to introduce time-dependent effects in a model to simulate the viscous-cohesive behavior of concrete in quasi-static conditions. Power laws are used to modify cohesive stresses according to the fracture opening rate. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93dbda7969bf88bc7e5a102713d01aa2
https://doi.org/10.1016/j.engfracmech.2020.106893

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A loading rate dependent cohesive model for concrete fracture

Autor: Luis Saucedo, Ángel de la Rosa, Jose Luiz Antunes de Oliveira e Sousa, Rena C. Yu, Gonzalo Ruiz

Publikováno v: Engineering Fracture Mechanics. 82:195-208

A time dependent cohesive model to account for the influence of loading rate on concrete fracture is addressed. Viscous-cohesive parameters are introduced in the fictitious crack model to represent a time dependent stress-crack opening zone in an ela

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58db248c22da62da7fa38b834f729737
https://doi.org/10.1016/j.engfracmech.2011.12.013

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A Levenberg-Marquardt algorithm for fi tting σ-w curves from three-point bend tests for plain and fi ber reinforced concretes

Autor: Jose Luiz Antunes de Oliveira e Sousa

Publikováno v: Revista IBRACON de Estruturas e Materiais, Vol 4, Iss 4, Pp 691-694
Revista IBRACON de Estruturas e Materiais v.4 n.4 2011
Revista IBRACON de Estruturas e Materiais
Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON

This technical note describes the implementation of the Levenberg-Marquardt algorithm for the inverse analysis of three-point bend tests on notched specimens of plain and fiber reinforced concretes for determining softening parameters (σ-w curves).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49f4e9fdded93cd0ca1b62bea1de2788
https://doi.org/10.1590/s1983-41952011000400010

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2D evaluation of crack openings using smeared and embedded crack models

Autor: Jose Luiz Antunes de Oliveira e Sousa, Andre Luis Gamino, Osvaldo L. Manzoli, Túlio Nogueira Bittencourt

Publikováno v: ResearcherID
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

Made available in DSpace on 2022-04-29T08:48:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01 This work deals with the determination of crack openings in 2D reinforced concrete structures using the Finite Element Method with a smeared

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab7bc3593ad481656458e820200436c9
https://doi.org/10.12989/cac.2010.7.6.483

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Finite element computational modeling of externally bonded CFRP composites flexural behavior in RC beams

Autor: Andre Luis Gamino, Jose Luiz Antunes de Oliveira e Sousa, Túlio Nogueira Bittencourt

Publikováno v: Computers & concrete. 6:187-202

This paper focuses on the flexural behavior of RC beams externally strengthened with Carbon Fiber Reinforced Polymers (CFRP) fabric. A non-linear finite element (FE) analysis strategy is proposed to support the beam flexural behavior experimental ana

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7aa36a3ed03b6f214e2e6326a1d900fb
https://doi.org/10.12989/cac.2009.6.3.187

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