Numerical estimation and practical validation of Hooputra’s ductile damage parameters

Aboutalebi, Farhad Haji; Banihashemi, A.

doi:10.1007/s00170-014-6275-8

Cited by 12 publications

(2 citation statements)

References 20 publications

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“…The mechanical properties acquired from the material test were inserted during modeling. In addition, shear and ductile damage were employed to replicate steel materials' tearing and fracture behavior in modeling [43].…”

Section: Materials Modelsmentioning

confidence: 99%

Research on Seismic Behavior of L-Shaped Concrete-Filled Steel Tubes Column Frame-Buckling Restrained Steel Plate Shear Walls

2023

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Frame buckling restrained steel plate shear walls (BRSPSWs) have been widely used in high-rise residential buildings. L-shaped concrete-filled steel tube (CFT) columns were used in the frame in this research to investigate the impact of the frame members type in the BRSPSWs system. A nonlinear finite element model (NFEM) was generated to examine the seismic performance of BRSPSWs with various types of connections to the frame elements. The NFEM results were compared to test results to make them more reliable, and the comparison showed that the NFEM can predict the seismic behavior of BRSPSWs. Then based on the validated NFEM results, several parameters were analyzed in parametric studies to assess their impact on the performance of BRSPSWs, including leg's length, column's width-to-thickness, axial compression ratio, and height-to-thickness of the steel plate, concrete panel's thickness, and bolt arrangement. The effect of these parameters on lateral resistance and yield stiffness was reported and discussed. A theoretical model has also been proposed based on modified plate-frame interaction (MPFI) to calculate the yield lateral resistance of BRSPSWs. The outcomes of MPFI were validated through testing and NFEM findings, and the comparison revealed reasonable concurrence.

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Section: Materials Modelsmentioning

confidence: 99%

Research on Seismic Behavior of L-Shaped Concrete-Filled Steel Tubes Column Frame-Buckling Restrained Steel Plate Shear Walls

2023

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“…A number of authors have numerically identified the parameters of the Hooputra's criterion in order to predict damage. This model was appropriate to calculate damage growth, crack and ductile fracture in the following benchmark tests on steel: standard tensile test, tensile of drilled and/or notched specimen, tube hydroforming and bore expanding processes [27]. A more specified formulation of the Hooputra's criterion for orthotropic materials was applied in combination with the shear and the instability criterions to predict the crack initiation of a more complicated process, namely compression and bending of the double chamber profile of aluminum alloys [17,28].…”

Section: Hooputra's Ductile Damage Criterionmentioning

confidence: 99%

Modeling of the ductile damage – Application for bar shearing

Moakhar

Hentati

Barkallah

et al. 2019

Materialwissenschaft Werkst

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The finite element method is becoming a reliable tool for designing manufacturing processes. Even in bar shearing, which is a basic operation in the metalworking industry, the finite element method is increasingly employed for the optimization of the process. Ductile damage modeling is crucial thereby. Recent experimental investigations have shown that, in particular, triaxiality and temperature must be considered in the constitutive description of damage in the shear zone. In this context, the Hooputra's criterion is in this work applied for the numerical simulation of shearing taking account of different stress states and temperatures. The parameterization of the model is based on wide experimental investigations. Characterization tests on smooth and notched cylindrical specimens as well as on flat shear specimens are carried out. The selected material for this investigation is the aluminum alloy AW6082. Subsequently, the numerical calculation of shearing is performed. By comparing the simulation results with data from experimental shearing, the importance of the consideration of the temperature gradients and the different triaxiality values in the shear zone is proven. Keywords: Damage model / temperature / triaxiality / finite element method / bar shearing / fracture characteristic tests Die Finite-Elemente-Methode (FEM) ist heutzutage ein zuverlässiges Tool bei der Auslegung von Fertigungsverfahren. Auch beim Knüppelscheren, das eine entscheidende Operation in der Metallverarbeitungsindustrie darstellt, wird die FEM für die Optimierung dieses Prozesses immer häufiger eingesetzt. Dabei spielt die Modellierung der duktilen Schädigung eine wichtige Rolle. Neue experimentelle Untersuchungen haben gezeigt, dass insbesondere die Triaxialität und die Temperatur bei der konstitutiven Beschreibung der Schädigung in der Scherzone zu berücksichtigen sind. In diesem Sinne wird im Rahmen dieser Arbeit das Hooputra-Kriterium unter Berücksichtigung unterschiedlicher Spannungszustände und Temperaturen in der numerischen Abbildung des Knüppelscherens angewendet. Die Parametrierung des Modells erfolge anhand umfangreicher experimenteller Untersuchungen. Dabei werden Versagensversuche an vollen und taillierten zylin-

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Characterization and Identification of 5083 Aluminum Alloy Behavior: Experimental and Numerical Investigations

Bouhamed,

Jrad,

Wali

et al. 2024

Lecture Notes in Mechanical Engineering

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Numerical estimation and practical validation of Hooputra’s ductile damage parameters

Cited by 12 publications

References 20 publications

Research on Seismic Behavior of L-Shaped Concrete-Filled Steel Tubes Column Frame-Buckling Restrained Steel Plate Shear Walls

Research on Seismic Behavior of L-Shaped Concrete-Filled Steel Tubes Column Frame-Buckling Restrained Steel Plate Shear Walls

Modeling of the ductile damage – Application for bar shearing

Characterization and Identification of 5083 Aluminum Alloy Behavior: Experimental and Numerical Investigations

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