Search Results - "Erfan Shafei"

Geometrically nonlinear vibration of anisotropic composite beams using isogeometric third-order shear deformation theory by Shafei, Erfan, Faroughi, Shirko, Reali, Alessandro

“…Due to broad usage of anisotropic composite beams in modern engineering structures, the main goal of the present work is to examine their geometrically…”
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Impact response characterization of shear CFRP strengthened RC beams by Fourier and wavelet methods: tests and analyses by Shafei Erfan

“…The current experimental study investigates impact response features of reinforced concrete (RC) beams with dominant shear failure mode. Six built…”
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Seismic response assessment of high-strength concrete frames strengthened with carbon fiber reinforced polymers by Javad Mokari Rahmdel, Farzin Vahid-Vahdattalab, Erfan Shafei, Tadeh Zirakian

“…In recent years, the use of new materials and technologies with the aim of developing high-performing and costeffective structures has greatly increased…”
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Plasticity modeling of FRP-confined circular reinforced concrete columns subjected to eccentric axial loading by Kabir, Mohammad Z., Shafei, Erfan

“…This paper presents a numerical study on FRP-wrap strengthened reinforced concrete columns subjected to eccentric axial loads using ABAQUS®. For modeling of…”
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Plasticity constitutive modeling of partially confined concrete with steel jacketing by Shafei, Erfan, Rahmdel, Javad Mokari

“…Current research offers experimental and numerical investigation on concrete blocks with partial steel jackets, which endures axial compression. Experimental…”
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Effects of CFRP retrofit on impact response of shear-deficient scaled reinforced concrete beams by Shafei, Erfan, Kabir, Mohammad Zaman

“…An experimental procedure is carried out to investigate response features of semi-deep reinforced concrete (RC) beams with dominant static shear failure…”
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Transient analysis of hybrid SMA-FRP reinforced concrete beams under sequential impacts by Shafei, Erfan, Kianoush, Reza

“…•Hybrid SMA-FRP reinforcement is a new approach for impact damage mitigation of concrete beams.•The successively increasing residual deflections and…”
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Nonlinear transient vibration of viscoelastic plates: A NURBS-based isogeometric HSDT approach by Shafei, Erfan, Faroughi, Shirko, Rabczuk, Timon

“…We present an efficient isogeometric analysis (IGA) formulation for nonlinear vibration problems of viscoelastic plates. The formulation is based on…”
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Phase-field simulation of delamination in laminated composite plates: Isogeometric formulation by Shafei, Erfan, Faroughi, Shirko, Reali, Alessandro

“…This paper presents a new, simplified approach to model the delamination phenomenon in laminated composites, where the drawbacks of the existing theories might…”
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Optimizing fiber paths of tow-steered laminated composites for parametric stability using isogeometric analysis and genetic algorithm by Shafei, Erfan, Faroughi, Shirko, Rabczuk, Timon

“…An isogeometric formulation is presented for fiber path optimization of tow-steered composite laminates (TSCL) with minimal parametric instabilities. Here, the…”
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Deformation characteristics of shear-deficient RC beams wrapped with CFRP by Shafei, Erfan

“…The shear-deficient reinforced concrete beams generally have brittle failure, which does not use the yielding potential of stirrups. The fiber-reinforced…”
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Anisotropic solid-like shells modeled with NURBS-based isogeometric approach: Vibration, buckling, and divergence analyses by Faroughi, Shirko, Shafei, Erfan, Rabczuk, Timon

“…We proposed an IGA formulation for free vibration, buckling and divergence analyses of generally anisotropic solid-like composite shells. Recently developed…”
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Seismic pullout behavior of cast-in-place anchor bolts embedded in plain concrete: Damage plasticity based analysis by Shafei, Erfan, Tariverdilo, Saeed

“…The seismic pullout strength of the cast-in-place anchor bolts embedded in the plain concrete is a function of the accumulated tensile damage during the load…”
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Dynamic stability optimization of laminated composite plates: An isogeometric HSDT formulation and PSO algorithm by Shafei, Erfan, Shirzad, Akbar, Rabczuk, Timon

“…An isogeometric analysis framework based on the non-uniform rational B-spline (NURBS) and the higher-order shear deformation theory (HSDT) is developed to…”
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Multi-patch NURBS formulation for anisotropic variable angle tow composite plates by Shafei, Erfan, Faroughi, Shirko, Rabczuk, Timon

“…Conventional methods result in sharp variation of stiffness in analysis of variable angle tow (VAT) composite plates, which can be enhanced using high-order…”
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Impact response of hybrid FRP-steel reinforced concrete slabs by Mousavi, Tohid, Shafei, Erfan

“…Hybrid FRP-steel is the combination of steel and FRP (fiber reinforce polymer) bars as a rebar. The hybrid FRP-steel reinforcement usually outperforms the…”
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Isogeometric HSDT approach for dynamic stability analysis of general anisotropic composite plates by Shafei, Erfan, Faroughi, Shirko, Rabczuk, Timon

“…Due to wide application of anisotropic composite plates in modern engineering structures and they were studied rare in literature, the main goal of this work…”
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An isogeometric FSDT approach for the study of nonlinear vibrations in truncated viscoelastic conical shells by Shafei, Erfan, Faroughi, Shirko, Reali, Alessandro

“…Nonlinear vibrations of truncated viscoelastic conical shell (TVCS) structures are studied using an isogeometric formulation based on non-uniform rational…”
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NURBS-based modeling of laminated composite beams with isogeometric displacement-only theory by Faroughi, Shirko, Shafei, Erfan, Eriksson, Anders

“…This paper develops a formulation for displacement-only beam elements based on isogeometric analysis, with intended application to laminated composite members…”
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Prediction of rock mass rating using TSP method and statistical analysis in Semnan Rooziyeh spring conveyance tunnel by Esmailzadeh, Akbar, Mikaeil, Reza, Shafei, Erfan, Sadegheslam, Golsa

“…•Geological hazard assessment of the multiple tunneling paths are introduced.•Progress paths of the tunnel and project quality are investigated using combined…”
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