Experimental and Numerical simulation of a Three Point Bending Test of a Stainless Steel Beam

Jindra, Daniel; Kala, Zdeněk; Kala, Jiří; Seitl, Stanislav

doi:10.1016/j.trpro.2021.07.183

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…For the 1# sample, there is no sudden drop of force throughout the bending process, but a long plateau was observed; for 2#-9# samples, the deformation of each sample features three stages (Figure 8) regardless of the specific value difference of the bending curves: stage one is elastoplastic deformation [33] without macro crack in bending (A point); stage two is the initiation and expansion of the crack until the grid layer is completely broken (B1-B3 points); and the stage three is the fracture of the upper end plate (C point). This is similar to Jindra's experimental results [34].…”

Section: Analysis Of Bending Curvessupporting

confidence: 92%

Force and Microstructure Variation of SLM Prepared AlMgSc Samples during Three-Point Bending

Nie

Zhang

et al. 2022

Materials

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Lightweight parts manufactured by metal selective laser melting (SLM) are widely applied in machinery industries because of their high specific strength, good energy absorption effect, and complex shape that are difficult to form by mechanical machining. These samples often serve in three-dimensional stress states. However, previous publications mainly focused on the unidirectional tensile/compressive properties of the samples. In this paper, AlMgSc samples with different geometric parameters were prepared by the SLM process, and the variation of force and microstructure during three-point bending were systematically investigated. The results demonstrate that the deformation resistance of these samples has good continuity without mutation in bending, even for brittle materials; the bending force-displacement curves exhibit representative variation stages during the entire bending process; the equivalent bending strength deduced from free bending formula is not applicable when compactability is less than 67%. The variations of grain orientation and size of the three representative bending layers also show regularity.

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Section: Analysis Of Bending Curvessupporting

confidence: 92%

Force and Microstructure Variation of SLM Prepared AlMgSc Samples during Three-Point Bending

Nie

Zhang

et al. 2022

Materials

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“…The simulation aims to fabricate a sandwich composite with more tensile and flexural strength, increasing its mechanical properties. Based on the finite element model (FEM) and 3D measurements of the bending parameters, usually, ANSYS tools were used to evaluate the reliability of the experimental results [65][66][67][68]. Hence, various polymer beams were investigated to predict flexural bending characteristics.…”

Section: Finite Element Analysismentioning

confidence: 99%

Mechanical Properties of Sandwiched Construction with Composite and Hybrid Core Structure

Njim,

Hasan,

Jweeg

et al. 2024

Advances in Polymer Technology

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In the field of lighter substitute materials, sandwich plate models of composite and hybrid foam cores are used in this study. Three core structures: composite core structure and then the core is replaced by a structure of a closed and open repeating cellular pattern manufactured with 3D printing technology. It finally integrated both into one hybrid open-cell core filled with foam and employed the same device (WBW-100E) to conduct the three-point bending experiment. The test was conducted based on the international standard (ASTM-C 393-00) to perform the three-point bending investigation on the sandwich structure. Flexural test finding, with the hybrid polyurethane/polytropic acid (PUR/PLA) core, the ultimate bending load is increased by 127.7% compared to the open-cell structure core. In addition, the maximum deflection increased by 163.3%. The simulation results of three-point bending indicate that employing a hybrid combination of PUR-PLA led to an increase of 382.3%, and for PUR–TPU by 111.8%; however, the highest value recorded with PUR/PLA, which has the slightest stress error among the tests. Also, it is reported that when the volume fraction of reinforced aluminum particles is increased, the overall deformation becomes more sufficient, and the test accuracy improves; for example, rising from 0.5% to 3%, the midspan deflection of composite (foam-Al) is increased by 40.34%. There were noticeable improvements in mechanical properties in the 2.5% composite foam-Al.

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“…As shown in Figure 10 [27], where r, s, and t represent degrees of freedom in the form of translational motion, u, v, and w indicate that this type of shell can move in the direction of rotation. Type "Shell-181", also used by [28][29][30][31][32][33][34][35][36] in evaluating stiffened panels and various thin-walled and curved-layered structures, explained that the whole type of motion works on a 3-dimensional scope. Therefore, a total of 6 DOF with the type of model material in the form of bilinear isotropic hardening compiles a model to describe plastic deformation when subjected to an external force.…”

Section: − Local Imperfection Modementioning

confidence: 99%

Effect of design parameters on the ultimate strength and collapse behaviour of stiffened panels

Hanif

Adiputra²,

Prabowo

et al. 2023

J Appl Eng Science

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Research about stiffened panel applications in ships has massively progressed with the amount of several methods to analyze it. Various studies had been conducted on stiffened panels using Finite Element Method (FEM). However, none have thoroughly explored the most optimal and efficient analysis methods and settings. Given the growing importance of FEM in reliability analysis for ship structures, particularly stiffened panels, a comprehensive study comparing different approaches is of paramount significance. Such research would not only streamline time-consuming procedures but also offer invaluable recommendations to advance the field's understanding and practical applications. In this paper, a finite element analysis study was done to analyze the influence of several parameter modeling of stiffened panels not only to achieve the models' ultimate strength value and collapse behavior but also to offer practical recommendations on the most optimal and efficient methods for analyzing stiffened panels through FEM. Conducting modification of three variations of the model configuration, four variations of boundary condition, and four variations of transverse stiffener modeling to compare each other. Running time consumed when simulations are calculated in ANSYS APDL was also being considered. The results showed a significant difference in modifying the model configuration's case, while in contrast, the modification of boundary conditions and transverse stiffener modeling only showed a slight difference in ultimate strength value. In addition, modification of transverse stiffener geometry only gave the difference by around 0.5 MPa. The model configuration case (A1 v A2) showed the most remarkable running time difference, which reached six times difference.

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Experimental and Numerical simulation of a Three Point Bending Test of a Stainless Steel Beam

Cited by 7 publications

References 7 publications

Force and Microstructure Variation of SLM Prepared AlMgSc Samples during Three-Point Bending

Force and Microstructure Variation of SLM Prepared AlMgSc Samples during Three-Point Bending

Mechanical Properties of Sandwiched Construction with Composite and Hybrid Core Structure

Effect of design parameters on the ultimate strength and collapse behaviour of stiffened panels

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