Application of RKP‐FSM in the buckling and free vibration analysis of thin plates with abrupt thickness changes and internal supports

Khezri, Mani; Bradford, Mark A.; Vrcelj, Zora

doi:10.1002/nme.4936

Cited by 12 publications

(7 citation statements)

References 48 publications

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“…We needed to model the boundary conditions, i.e., the supports design and the applied load, with the aim to replicate the test conditions more accurately in order to implement a proper ANSYS validation [ 28 ]. The dimensions for the test samples were those required by the standards (80 × 10 × 4 mm).…”

Section: Discussionmentioning

confidence: 99%

Identifying Elastic Constants for PPS Technical Material When Designing and Printing Parts Using FDM Technology

et al. 2021

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This paper introduces a methodology to study the anisotropic elastic constants of technical phenylene polysulfide thermoplastic (PPS), printed using fused deposition modeling (FDM) in order to provide designers with a guide to achieve the required mechanical properties in a printed part. The properties given by the manufacturer are usually taken from injected samples and these are not the real properties for printed parts. Compared to other plastic materials, PPS offers higher mechanical and thermal resistance, lower moisture absorption, higher dimensional stability, is highly resistant to chemical attacks and environmental aging, and its fireproof performance is good. One of the main difficulties presented when calculating and designing for FDM printing is that printed parts present anisotropic behavior i.e., they do not have the same properties in different directions. Haltera-type samples were printed in the three manufacturing directions according to optimum parameters for material printing, aimed at calculating the anisotropic matrix of the material. The samples were tested in order to meet standards and values for elastic modulus, shear modulus and tensile strength were obtained, using Digital Image Correlation System to measure the deformations. An approximated transversally isotropic matrix was defined using the obtained values. The fracture was analyzed using SEM microscopy to check whether the piece was printed correctly. Finally, the obtained matrix was validated by a flexural test and a finite element simulation.

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Section: Discussionmentioning

confidence: 99%

Identifying Elastic Constants for PPS Technical Material When Designing and Printing Parts Using FDM Technology

et al. 2021

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“…At this stage, no calculations were performed for the buckling of a thin-walled drive shaft from compressive forces during a suspension operation [14,15], since these forces are insignificant in comparison with the torque, which transfers the drive shafts from the differential to the hub of the drive wheels.…”

Section: Finite Element Analysismentioning

confidence: 99%

Computational and Experimental Study of the Strength of a Composite Drive Shaft

Bolshikh

2021

Transport Problems

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This computational and experimental work is dedicated to the development of promising designs of vehicle drive shafts made of polymer composite materials. This paper analyzes the existing models of drive shafts of "Formula Student" class vehicles and substantiates the use of a carbon-fiber drive shaft with titanium tips. A manufacturing technology for such a product is also presented. Evaluation of structure performance under the action of ultimate loads was carried out by the finite element method. Prototypes of composite drive shafts were produced for further laboratory and field tests. The author proposed a new design of composite drive shafts and a method for calculating the strength of the proposed design; the results were verified by bench laboratory and field tests. From the results of this work, conclusions about the performance of the developed structures and their applicability to racing cars were drawn.

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“…Compared with other meshfree methods, RKPM has advantages as follows 19,20 : (1) RKPM retains the advantages of free Lagrangian or SPH methods; (2) RKPM is more accurate than SPH due to the addition of the correction function; (3) RKPM is more efficient in computer implementation than diffuse element method and EFG. Therefore, RKPM has attracted many researchers to use it to solve many problems in different fields, such as material analysis, 30–32 fluid mechanics, 33,34 and structural engineering 35–37 . Chen et al 38 and Memar Ardestani et al 39 successfully used the RKPM to effectively analyze the bending problems of flat and ribbed plates.…”

Section: Introductionmentioning

confidence: 99%

Static behavior of ribbed folded plate roof under vertical uniform load—Experimental study and meshfree method analysis

Sun,

Ma,

Zhang

et al. 2023

Structural Design Tall Build

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SummaryFolded plate roofs are widely used in building roofs due to their light weight and high stiffness. However, traditional folded plate roofs are often limited in application due to insufficient stiffness under the current trend of pursuing larger‐span roofs. Ribbed folded plate roofs can effectively solve this problem because ribs not only increase the stiffness of the roof and reduce stress concentration, but they are also easy to be formed into various shapes to meet different needs for buildings. Therefore, the detailed analysis was carried out on a reinforced concrete ribbed folded plate roof (RCRFR) under the vertical uniform load to investigate its static behavior. The bearing capacity, failure mode, load–displacement relationship, and strain variation were obtained through the test. Additionally, based on the finite element (FE) method, not only a comparison was conducted between RCRFR and reinforced concrete ribless folded plate roof (RCLFR), but the influence of material nonlinearity and geometric nonlinearity on the structure was also investigated. Moreover, the bending characteristics of RCRFR under design load were analyzed based on the reproducing kernel particle method. The experimental results showed that this structure had good mechanical properties within the design load. In the overload stage, the concrete on the underside of the structure was severely damaged. Furthermore, the yielding of the ribbed plate's reinforcing bars caused the increased vertical deformation difference between the ribbed plate and the top chord, and the ribbed plate and the central ridge beam. Eventually, the failure of the anchorage of the ribbed plate's reinforcing bars anchored in the central ridge beam and the top chord led to the loss of structural load‐bearing capacity. The FE analysis results demonstrated that ribs enhance the stiffness of the structure, with material nonlinearity having the primary impact and geometric nonlinearity exerting a secondary effect. The meshfree method analysis was in concordance with the experimental results as well as those of the FE analysis.

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Application of RKP‐FSM in the buckling and free vibration analysis of thin plates with abrupt thickness changes and internal supports

Cited by 12 publications

References 48 publications

Identifying Elastic Constants for PPS Technical Material When Designing and Printing Parts Using FDM Technology

Identifying Elastic Constants for PPS Technical Material When Designing and Printing Parts Using FDM Technology

Computational and Experimental Study of the Strength of a Composite Drive Shaft

Static behavior of ribbed folded plate roof under vertical uniform load—Experimental study and meshfree method analysis

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