Evaluating the Seismic Capacity of Dry-Joint Masonry Arch Structures via the Combined Finite-Discrete Element Method

Li, Wangpeng; Chen, Xudong; Wang, Hongfan; Chan, Andrew; Cheng, Yingyao

doi:10.3390/app11188725

Cited by 8 publications

(3 citation statements)

References 48 publications

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“…The finite element (FE) method is a numerical technique used to analyze various engineering problems [28][29][30][31]. This technique separates a large system into smaller and simpler parts, called finite elements.…”

Section: Mesh Generation Using the Finite Element Methodsmentioning

confidence: 99%

Skull Thickness Calculation Using Thermal Analysis and Finite Elements

et al. 2021

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In this study, the skull bone thicknesses of 150 patients ranging in age from 0 to 72 years were calculated using a novel approach (thermal analysis), and thickness changes were analyzed. Unlike conventional thickness calculation approaches (Beam Propagation, Hildebrand), a novel heat transfer-based approach was developed. Firstly, solid 3D objects with different thicknesses were modeled, and thermal analyses were performed on these models. To better understand the heat transfer of 3D object models, finite element models (FEM) of the human head have been reported in the literature. The FEM can more accurately model the complex geometry of a 3D human head model. Then, thermal analysis was performed on human skulls using the same methods. Thus, the skull bone thicknesses at different ages and in different genders from region to region were determined. The skull model was transferred to ANSYS, and it was meshed using different mapping parameters. The heat transfer results were determined by applying different heat values to the inner and outer surfaces of the skull mesh structure. Thus, the average thicknesses of skull regions belonging to a certain age group were obtained. With this developed method, it was observed that the temperature value applied to the skull was proportional to the thickness value. The average thickness of skull bones for men (frontal: 7.8 mm; parietal: 9.6 mm; occipital: 10.1 mm; temporal: 6 mm) and women (frontal: 8.6 mm; parietal: 10.1 mm; occipital: 10 mm; temporal: 6 mm) are given. The difference (10%) between men and women appears to be statistically significant only for frontal bone thickness. Thanks to the developed method, bone thickness information at any desired point on the skull can be obtained numerically. Therefore, the proposed method can be used to help pre-operative planning of surgical procedures.

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Section: Mesh Generation Using the Finite Element Methodsmentioning

confidence: 99%

Skull Thickness Calculation Using Thermal Analysis and Finite Elements

et al. 2021

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“…The details about the FDEM can be found in the literatures [25][26][27]. Recently, the FDEM has been used to simulate the failure of brittle/quasi-brittle solids under static/quasi-static and dynamic loads [28][29][30][31][32][33]. Regarding the failure of masonry structures, Chen et al [34] employed the FDEM to investigate the collapse of dry-jointed masonry arches subjected to support movement, and investigated the effects of geometry and friction coefficient.…”

Section: Introductionmentioning

confidence: 99%

FDEM Simulation on the Failure Behavior of Historic Masonry Heritages Subjected to Differential Settlement

Chen

Chan

et al. 2022

Buildings

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Historic masonry heritages, such as cathedrals, colonnades, and arch bridges, were constructed with individual components (e.g., stones, bricks, other materials) bound together with, e.g., mortar, and they are very vulnerable to foundation settlement, especially differential settlement which occurs frequently in engineering practice. These masonry structures are discontinuous, and therefore, their behavior under differential settlement is highly nonlinear and complex. In this study, the combined finite-discrete element method (FDEM) is employed to simulate the failure behavior of historic masonry heritages subjected to support differential settlement. In the FDEM models, structures are discretized into elements where FE formulation is incorporated, resulting in an accurate estimate of structural deformation and interaction forces. In addition, a fracture model is employed for masonry blocks. Numerical examples are given and compared with results from the literature, showing that the FDEM is applicable and reliable in simulating the failure behavior of historic masonry heritages. Further analyses including block fracture reveal that fracturing can decrease the capacity against settlement significantly.

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“…Further information on the FDEM can be referred to in the work of Munjiza and his co-workers [27,28]. The FDEM has previously been applied to the quasi-static and dynamic analysis of brittle solids [29][30][31][32][33]. Early work [34,35] addressed the impact fracture simulations on the monolithic and the laminated glass with the FDEM.…”

Section: Introductionmentioning

confidence: 99%

A FDEM Parametric Investigation on the Impact Fracture of Monolithic Glass

et al. 2022

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Due to the brittleness, monolithic glass may fracture under impact, resulting in catastrophic sequences. The combined finite-discrete element method, i.e., FDEM, is employed to investigate both the oblique and the perpendicular impact failures of monolithic glass parametrically, particularly the soda-lime glass. Using FDEM, glass is discretised into discrete elements where a finite element formulation is incorporated, leading to accurate evaluation of the contact forces and structural deformation. Following the basic theories of the FDEM, a cohesive Mode I fracture model of glass is briefly introduced. Numerical examples are given for the verification of the employed fracture model and the applicability of the FDEM, and comparisons have been made against the computational and experimental results in the literature. The investigated parameters include the impact velocity, the impact angle, the material properties of glass, etc. The obtained results not only revealed the impact fracture mechanism of soda-lime glass but also provided guidance for its design and manufacturing.

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Evaluating the Seismic Capacity of Dry-Joint Masonry Arch Structures via the Combined Finite-Discrete Element Method

Cited by 8 publications

References 48 publications

Skull Thickness Calculation Using Thermal Analysis and Finite Elements

Skull Thickness Calculation Using Thermal Analysis and Finite Elements

FDEM Simulation on the Failure Behavior of Historic Masonry Heritages Subjected to Differential Settlement

A FDEM Parametric Investigation on the Impact Fracture of Monolithic Glass

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