Abaqus
Mostrando 13-24 de 124 artigos, teses e dissertações.
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13. Experimental and numerical study of I-shape slit dampers in connections
Abstract This paper proposes a new beam to column connection which has slit dampers to increase ductility and moment capacity of structures. After Northridge and Kobe earthquakes, many researchers have tried to achieve more ductile connections. Ductility of connections causes to dissipate more energy before failure of connections. Also, some researchers have
Lat. Am. j. solids struct.. Publicado em: 14/11/2018
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14. Prediction of Shape Distortions in Composite Wing Structures
Abstract Shape distortions and warpage are a major source of problems for composite manufacturers. These distortions are usually accompanied by built up residual stresses. They can deform a component so that it becomes useless. It also has the capability to reduce the strength of the structure. In this paper, the three-dimensional version of the constitutive
Lat. Am. j. solids struct.. Publicado em: 29/10/2018
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15. Numerical and experimental investigation of forming limit diagrams of 6063 aluminum alloy sheets using Ayada ductile fracture criterion and the second derivative of large strain criterion at increased temperatures
Abstract The present study investigated the forming limit diagrams (FLDs) of aluminum alloy 6063 sheets using numerical and experimental methods at increased temperatures. In the numerical section, for the first time, the Ayada ductile fracture criterion and the second derivative of the large strain criterion were used. ABAQUS finite element (FE) analysis so
Lat. Am. j. solids struct.. Publicado em: 17/09/2018
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16. Finite Element Simulation of Interlaminar and Intralaminar Damage in Laminated Composite Plates Subjected to Impact
Abstract Here In this study, the composite laminates subjected to transverse impact with consideration interlaminar and intralaminar damage based on Cohesive Zone Model (CZM) and Progressive Damage Model (PDM) are investigated by numerical analysis using ABAQUS commercial finite element code. The delamination in stacking ply with the same fiber orientation
Lat. Am. j. solids struct.. Publicado em: 02/07/2018
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17. Behavior and design of built-up compressed steel members composed of concentric hot rolled circular hollow sections
Abstract This research presents a study of the behavior of built-up compressed steel members composed of concentric hot rolled circular hollow sections. The use of these members is an innovative solution of practical interest for situations in which a single member does not reach the required compressive strength. Some technically and economically viable de
Lat. Am. j. solids struct.. Publicado em: 02/07/2018
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18. Vibration behavior of thin-walled steel members subjected to uniform bending
Abstract This article reports the results of an investigation on the effects of internal moments on the vibration behavior of thin-walled steel members. The analyses are based on the Generalized Beam Theory (GBT), a thin-walled bar theory accounting for cross-section in-plane deformations - its main distinctive feature is the representation of the member def
REM, Int. Eng. J.. Publicado em: 2018-07
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19. Investigation of Deep Cold Rolling Effects on the Bending Fatigue of Brass C38500
Abstract In this paper, the effects of deep cold rolling (DCR) process on the bending fatigue behavior of brass C38500 are investigated. Unilateral rotary bending fatigue tests were conducted by an automatic device on the basis of Moore rotary bending instrument. The treatment was done for various rolling depths (rolling forces) and one repeated pass to fin
Lat. Am. j. solids struct.. Publicado em: 04/06/2018
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20. Finite element modelling to assess the effect of position and size of the piezoelectric layer of a hybrid beam
Abstract A one dimensional finite element model is presented to assess the effect of position and size of the piezoelectric layer of a hybrid beam. The efficient layerwise (zigzag) theory is used for making the finite element model. The 1D beam element has eight mechanical and a variable number of electrical degrees of freedom. The codes are developed in Ma
Lat. Am. j. solids struct.. Publicado em: 03/05/2018
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21. Modeling of the temperature field generated by the deposition of weld bead on a steel butt joint by FEM techniques and thermographic images.
The aim of this work is to predict the temperature field generated by welding a steel butt joint (API 5L X80). The prediction was modeled by finite element software Abaqus where the subroutine was developed in Fortran so that heat source motion may be included. The motion was based on the Goldak's double ellipsoid. In the model material nonlinearities were i
Mat. Res.. Publicado em: 23/02/2018
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22. Prediction of Plastic Instability in Sheet Metals During Forming Processes Using the Loss of Ellipticity Approach
Abstract The prediction of plastic instability in sheet metals during forming processes represents nowadays an ambitious challenge. To reach this goal, a new numerical approach, based on the loss of ellipticity criterion, is proposed in the present contribution. A polycrystalline model is implemented as a user-material subroutine into the ABAQUS/Implicit fin
Lat. Am. j. solids struct.. Publicado em: 2017-10
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23. Determination of Forming Limit Diagrams Based on Ductile Damage Models and Necking Criteria
Abstract In this paper, forming limit diagrams (FLDs) for an aluminum alloy are predicted through numerical simulations using various localized necking criteria. A comparative study is conducted for the FLDs determined by using the Lemaitre damage approach and those obtained with the modified Gurson-Tvergaard-Needleman (GTN) damage model. To this end, both d
Lat. Am. j. solids struct.. Publicado em: 2017-10
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24. Quasi-Static Crushing and Energy Absorption Characteristics of Thin-Walled Cylinders with Geometric Discontinuities of Various Aspect Ratios
Abstract In this paper, energy absorption and deformation capacity of circular thin-walled members with elliptical cut-outs are investigated both numerically and experimentally. Thin-walled members possess the uniform height, thickness, average cross sectional area, material and volume are subjected to axial quasi-static loading. To conduct such tests, speci
Lat. Am. j. solids struct.. Publicado em: 2017-09