Bending collapse analysis for thin and medium-thin-walled square and rectangular hollow shapes

Lavayen-Farfán, Daniel; Boada, María Jesús López; Rodríguez-Hernández, Jorge

doi:10.1016/j.tws.2021.107934

Cited by 16 publications

(5 citation statements)

References 30 publications

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“…8 Particularly in mobile and compact systems, beam geometry is affected by weight, volume, mounting features, and cost. 9,10 The bending behavior of beams is an important failure criterion in engineering applications. Computer-aided engineering simulations and field tests come into forefront in the mechanical strength calculations of beams.…”

Section: Introductionmentioning

confidence: 99%

“…It is very difficult to examine this bending mechanism and define this collapse for special sections other than standard sections. 10,12 Although it is usually time-consuming and expensive, accurately determining the bending behavior and mechanical properties of thin-walled hollow beams by numerical simulations and experimental tests is possible. 10 Wan et al 9 investigated the structural behavior, strength, and design of C- and Z-section beams under the effect of bending.…”

Section: Introductionmentioning

confidence: 99%

“…10,12 Although it is usually time-consuming and expensive, accurately determining the bending behavior and mechanical properties of thin-walled hollow beams by numerical simulations and experimental tests is possible. 10 Wan et al 9 investigated the structural behavior, strength, and design of C- and Z-section beams under the effect of bending. Stress analyses were conducted in these beams using the nonlinear finite element method with ANSYS software.…”

Section: Introductionmentioning

confidence: 99%

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Design of a precision planter chassis using computer-aided engineering and experimental validation

İrsel

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The application of X-section beams in the modular and strength-based design of a precision planter chassis was investigated numerically and experimentally in a case study. This study deals with the feasibility of a special section design with a systematic engineering approach. Mechanical tests were performed for the beam evaluated in a mounting system. The X-section beam model and the mounting elements on this beam were created using computer-aided engineering software, and the compatibility of the design with the mass criterion was investigated. This model was edited as a 2D and 3D mixed model and analyzed with the finite element method to analyzing studies of the system. Stress measurement was conducted using strain gauges at specified points in the system whose prototype was produced. These strain data were processed with nCode DesignLife software, and nonlinear FEA analyses were validated using these stress measurements. The fatigue damage of the X-section beam under dynamic loading conditions was investigated using the FE model solution and experimental measurement data (CAE-based fatigue analysis) with nCode software. The X-section beam design adopted a multiple-objective genetic algorithm technique for optimization by means of ANSYS. The maximum stress value was 121.83 MPa, and a 7.77 kg material was saved correlated to the prototype with the help of optimization solved 400 iterations. It has been determined that the X-section beam is safe by 1.06 × 106 cycles under these loading conditions and can carry a load of 1600 kg. The X-section beam can be successfully applied in similar systems owing to its assemblability and functionality.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design of a precision planter chassis using computer-aided engineering and experimental validation

İrsel

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…If the average force obtained in relation (3) is divided by the Pf , the CFE is obtained, this parameter can also be expressed as a percentage and it can be written similar to equation (4). Among the examined parameters, the higher the SEA and CFE for a structure and the lower the maximum force are, the more optimal the structure is. Beams with rectangular and square cross-sections subjected to three-point loads have been investigated in various research and they can be divided into two categories: single-cell 23–25 and multi-cell. 26,27 One of the methods used to reduce the maximum force in structures under axial loads (often in energy absorbers) and structures under bending loads (mostly beams) is to make holes in the body of the structure.…”

Section: Review Of Literature and Introductionmentioning

confidence: 99%

“…Beams with rectangular and square cross-sections subjected to three-point loads have been investigated in various research and they can be divided into two categories: single-cell [23][24][25] and multi-cell. 26,27 One of the methods used to reduce the maximum force in structures under axial loads (often in energy absorbers) and structures under bending loads (mostly beams) is to make holes in the body of the structure.…”

Section: Review Of Literature and Introductionmentioning

confidence: 99%

Investigating hole effects on bending performance of aluminum beams with square cross-sections under three-point bending load and their implementation in light vehicles

Shen¹,

Zahra²

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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The bending behavior of beams with a square cross-section containing holes under a three-point bending load was investigated in the present study. As aluminum alloys are lighter than steel and there are many automobile companies that use this material, 6063 aluminum alloy was chosen for this study. The present research was carried out both experimentally and numerically. In the numerical section, aluminum beams were simulated with the finite element software LS-DYNA. These beams contained holes with a diameter of 21 mm, which were placed at different distances on the length of the beam. In this research, 36 perforated beams were simulated in three thicknesses: 1, 1.5, and 2, and the holes were placed at 0, 3.5, 7, 10.5, 14, 17.5, 21, 24.5, 28, 35, 42, and 49 mm in relation to the middle of the beam. In addition, a beam without holes was studied for each thickness. Numerical simulations were validated with experiments and good results were observed. The obtained results showed that as the hole moves from the center to the sides, the absorption of energy and maximum force increases. In the final section, the most optimal beams were determined in terms of thickness and hole location, and based on these a car bumper was proposed.

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On the Use of Carbon Fiber Composites for the Enhancement of the Rollover Resistance of Steel Buses

Lavayen-Farfán

Butenegro

Boada

et al. 2023

Proceedings of the XV Ibero-American Congress of Mechanical Engineering

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The increasing use of composites in vehicles in recent years is one of the current trends in the automotive industry. In particular, fiber composites are being used as reinforcements for the main structural elements of vehicles, due to their outstanding specific mechanical properties and low weight. When combined with metal parts, fiber composites can significantly enhance the crashworthiness of vehicle structures, by increasing their energy absorption capabilities and resistance to plastic deformations and permanent damage. This work presents CFRP reinforcements as a case study for enhancing the bending collapse behavior and crashworthiness of bus structures. The required calculations are based on a simplified “concept model” that includes the bending collapse behavior of the structural components, based on theoretical models calibrated with experimental results. The results demonstrate that the use of CFRP reinforcements improves the rollover crashworthiness of a bus structure, and need not be applied to the entire structure, but only to the critical parts where bending collapse is most likely to occur in a rollover accident.

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Bending collapse analysis for thin and medium-thin-walled square and rectangular hollow shapes

Cited by 16 publications

References 30 publications

Design of a precision planter chassis using computer-aided engineering and experimental validation

Design of a precision planter chassis using computer-aided engineering and experimental validation

Investigating hole effects on bending performance of aluminum beams with square cross-sections under three-point bending load and their implementation in light vehicles

On the Use of Carbon Fiber Composites for the Enhancement of the Rollover Resistance of Steel Buses

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