Predicting the Structural Performance of Sandwich Concrete Panels Subjected to Blast Load Considering Dynamic Increase Factor

Hanifehzadeh, Mohammad; Mousavi, Mir Mohammad Reza

doi:10.33736/jcest.1067.2019

Cited by 14 publications

(3 citation statements)

References 26 publications

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“…Te bioinspired sandwich construction on an aluminium face sheet with glass fbre reinforcement, epoxy resin matrix, and pet foam core material is the focus of this research [17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Te materials' characteristics were determined experimentally in accordance with ASTM standards [31][32][33][34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Sandwich Structure in Composite Panels

Sampathkumar¹,

Mohankumar²,

Teekaraman

et al. 2023

Advances in Materials Science and Engineering

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The phenomenon of separation into constituent layers connecting the core and laminate of a composite sandwich complex is a vital complication that leads to early failure of such material. The direction of the sandwich construction's exfoliation rigidity is increased between interlaminar low fiber augmentation. The bioinspired technique of hybrid material layers was used on an aluminium face sheet with an interlayer composition of PET foam core and glass fabric of a material that appears to have greater potential as a flimsy substitute for materials currently used in automotive, aeronautical, and marine applications. This examination seeks to develop the making of such material along the retardation in fibre supplements. Fibre bridging has been recognized as an important appliance in the progress of this operating procedure. Consequently, this method points to promoting the event of fibre bridging by differing aggregates, including the mass and extent of augmented fibres and the quantity of epoxy resin applied. A few advancements were made to the production methods, and though the outcomes for the resisting ability of specimens were found to be indecisive, it was found that the layer separation hardness had even improved. This was confirmed through the operation of scanning electron microscopy and also predicted the mechanically peeled material surfaces which identified the adhesive strength variations with respect to the face sheet surface modified with the sand blasting process. The analysis also revealed the need for further research into optimizing the attachment between aluminium sheet and pet foam and glass fabric based hybrid sandwich panels.

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Section: Introductionmentioning

confidence: 99%

Bioinspired Sandwich Structure in Composite Panels

Sampathkumar¹,

Mohankumar²,

Teekaraman

et al. 2023

Advances in Materials Science and Engineering

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“…They concluded that the use of the proposed wall configuration will have better performance than conventional walls, while there is little extra cost to make it. [13]. Yang et al ( 2019) during a case study collected the results of 491 concrete filled steel tube (CFT) column test results under axial load from existing literature.…”

Section: Introductionmentioning

confidence: 99%

The effect of using concrete-filled tube columns on steel moment frame with different numbers of stories by dynamic time history analysis

Shekari¹,

Oghabi²

2020

IJET

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This study was carried out aimed to investigate the effect of using concrete-filled steel tube (CFT) columns on steel moment frame with different numbers of stories by dynamic time history analysis. FEM method (formerly ABAQUS) was used for modeling. A model was first modeled in Abacus software according to the conditions and dimensions of the laboratory model and subjected to lateral cyclic loading. According to the results of comparison of hysteresis behavior, the specimen with CFT column has higher residual behavior and energy dissipation than the simple steel moment frame. Frame with CFT column has higher energy dissipation and lower resistance drop. 24 numerical models with 1, 2 and 3 stories were analyzed under different earthquakes. Time history charts of different models were compared. According to the results, the use of steel filled with concrete leads to increase the load-bearing of the frame in steel frame. Filling the steel column with concrete prevents the buckling of the concrete into the column and delays the local buckling of the steel wall. Concrete-filled steel frame steel has a better energy dissipation behavior than steel frame. Roof displacement of different frames with CFT column was lowers than that the roof displacement of steel frame, which indicates the frame performance has improved. The presence of concrete in the column has a significant effect on the behavior of the frame so that damage in the CFT column occurs at the panel zone where the column generally has a good behavior, but occurs in the steel column under buckling earthquake in the column.

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“…The optimal parameter for each of the structural components is identified using a specific optimization method. It was concluded that using the proposed wall configuration compares with the regular walls will have better performance while its additional construction costs is insignificant [12]. Yang et al ( 2019), carried out a case study of 491 test results of the CFT under axial load from the available literature.…”

mentioning

confidence: 99%

Investigation and comparison of the seismic behavior of steel structure of moment frame with/without CFT column

Oghabi¹,

Shekari²

2020

IJET

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In the present research, the seismic behavior of steel structure of moment frame with CFT column has been evaluated. Finite element method has been used for numerical modeling. In the modeling, the surface and volume elements were used for steel and concrete, respectively. One, two, and three-story frames with and without CFT column under different earthquakes were investigated through dynamic analysis of the time history. The results show that the steel frame with CFT column, in terms of energy dissipation, has better behavior than the steel frame. The roof displacement in the different frames with CFT is less than that of the steel frame which indicate the improved performance of the frame. Using the CFT column in the column, in comparison with steel column, has led an increase in the bearing capacity of the structure under the earthquake. By adding the concrete to the column, the failure status of the structure will change. In the model with CFT, the failure occurs mainly in the location of the panel zone, while in the steel column under earthquake, the buckling occurs in the column. The reason for that may be due to steelconcrete interaction, which in turn, will increase the bearing capacity of the CFT column. Presence of CFT column in the steel frames will result in increased bearing capacity of the frame. Filling the steel frame with concrete prevents the inward buckling of the column and delays the local buckling of the steel wall.

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Predicting the Structural Performance of Sandwich Concrete Panels Subjected to Blast Load Considering Dynamic Increase Factor

Cited by 14 publications

References 26 publications

Bioinspired Sandwich Structure in Composite Panels

Bioinspired Sandwich Structure in Composite Panels

The effect of using concrete-filled tube columns on steel moment frame with different numbers of stories by dynamic time history analysis

Investigation and comparison of the seismic behavior of steel structure of moment frame with/without CFT column

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