The reliability of finite element analysis results of the low impact test in predicting the energy absorption performance of thin-walled structures

Alipour, R.; Nejad, Ali Farokhi; Izman, S.

doi:10.1007/s12206-015-0424-3

Cited by 16 publications

(2 citation statements)

References 50 publications

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“…According to the available documents, it is evident that the ST-52 steel sheet has been employed in many existing radial gates. The non-linear behavior material properties were modeled in the software by the use of the true stress-strain curve [24]. Based on the introduced stress-strain curve, the nonlinear behavior of the material was imported into ABAQUS as tabulated data.…”

Section: Materials Propertiesmentioning

confidence: 99%

Numerical and Physical Analysis on the Response of a Dam’s Radial Gate to Extreme Loading Performance

Faridmehr

Nejad

Baghban

et al. 2020

Water

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Maintaining the reservoir safety of large dams has considerable importance for the public where they are constructed in heavily populated and industrialized areas. The extreme hydrodynamic force caused by ground acceleration, cavitation damage, and vibration are among concerns that threaten the safety of the spillway and its conveyance structures when subjected to a natural disaster, such as earthquakes and severe floods. Current research investigates the hydrostatic and hydrodynamic performance of the Karkheh Dam spillway radial gate through 3-D finite element (FE) models using ABAQUS/Explicit. The common loads applied on the radial gate were reviewed and stress–strain in the skin plate and trunnion were investigated as a result of developed hydrodynamic pressures. The performance of conveyance structures subjected to significant discharge was also investigated through a small-scale model to evaluate the cavitation damage index. The results of this research will help researchers in the field of civil and hydraulic engineering for the risk analysis of the radial gates and conveyance structures.

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Section: Materials Propertiesmentioning

confidence: 99%

Numerical and Physical Analysis on the Response of a Dam’s Radial Gate to Extreme Loading Performance

Faridmehr

Nejad

Baghban

et al. 2020

Water

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“…Their studies focused on the crash worthiness indicators when a structure is under axial loading. Moreover the effect of filler material to enhance material properties has been investigated [17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

Nia¹,

Nejad²,

Li³

et al. 2020

Mechanics & Industry

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The geometry of a composite frusta-conical structure with 20° apex angle was optimized using topology optimization method. The ATOM topology solver was used to perform optimization process. The structure was subjected to an axial compressive quasi-static loading where the criterion of optimization is the largest absorption of energy per unit volume. The optimization resulted in concave shell geometry with a volume reduction of 15%. To compare the effect of geometry on energy absorption capability, two types of GFRP specimen with different thickness were fabricated using filament winding and hand lay-up methods. The axial crushing test results were validated with numerical analysis using the commercial finite element software ABAQUS. The collapse mode and failure mechanism were investigated and identified. The presented methodology helps to find the better geometry instead of testing different geometries.

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Crashworthiness analysis of a cylindrical auxetic structure under axial impact loading

Gao

Zhao

Chen-zhi³

et al. 2019

Sci. China Technol. Sci.

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The reliability of finite element analysis results of the low impact test in predicting the energy absorption performance of thin-walled structures

Cited by 16 publications

References 50 publications

Numerical and Physical Analysis on the Response of a Dam’s Radial Gate to Extreme Loading Performance

Numerical and Physical Analysis on the Response of a Dam’s Radial Gate to Extreme Loading Performance

Energy absorption assessment of conical composite structures subjected to quasi-static loading through optimization based method

Crashworthiness analysis of a cylindrical auxetic structure under axial impact loading

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