Effect of end-clamping constraints on bending crashworthiness of square profiles

Estrada, Quirino; Vergara-Vázquez, Julio; Szwedowicz, Dariusz; Rodriguez-Mendez, Alejandro; Gómez-Vargas, Oscar; Partida-Ochoa, Gonzalo; Domı́nguez, Mariana

doi:10.1007/s00170-021-07678-z

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…X-ray diffraction (XRD) analysis was performed to identify the phase obtained in the welding zone after FRW. The flexural strength of welded rods was investigated using a three-point bending test machine (RH-30, Shimadzu Inc., Kyoto, Japan) [38]. The movement speed of the bending test punch is about 1 mm/s.…”

Section: Methodsmentioning

confidence: 99%

Weld Strength of Friction Welding of Dissimilar Polymer Rods Fabricated by Fused Deposition Modeling

Kuo

Lee

2022

Polymers

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Friction welding (FRW) is a promising method for joining cylindrical components of dissimilar and similar polymers or metals. In particular, FRW is capable of generating defect-free welds. Fused deposition modeling (FDM) has been widely employed in the automotive industry, ranging from lightweight tools, testing models, and functional parts. Conventionally, dissimilar parts fabricated by FDM are joined by glue. However, distinct disadvantages of this approach include both low joining strength and low joining efficiency. Hitherto, little has been reported on the characterizations of weld strength of FRW of dissimilar parts fabricated by FDM. In addition, FRW of dissimilar polymeric materials is a difficult task because different polymers have different physical, rheological, and mechanical properties. In this study, the effects of welding revolution on the weld strength of friction welding dissimilar parts fabricated by FDM are investigated experimentally. It was found that the average flexural strength of dissimilar polymer rods fabricated by FRW is about 1.52 times that of dissimilar polymer rods fabricated by gluing. The highest flexure strength can be obtained by FRW using polylactic acid (PLA) and PC (polycarbonate) rods. The average impact strength of dissimilar polymer rods fabricated by FRW is about 1.04 times that of dissimilar polymer rods joined by gluing. The highest impact strength can be obtained by FRW using PLA to PLA rods.

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Section: Methodsmentioning

confidence: 99%

Weld Strength of Friction Welding of Dissimilar Polymer Rods Fabricated by Fused Deposition Modeling

Kuo

Lee

2022

Polymers

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“…En todos los casos los componentes se modelaron con elementos C3D8R. Los discos cervicales fueron modelados con propiedades mecánicas para aluminio 6063-T5 con módulo de Young (E) de 66940 MPa, Coeficiente de Poisson (υ) de 0.33, límite de fluencia de 158.79 MPa y densidad (ρ) de 2700 kg/m 3 [35]. La cabeza se construyó con vinyl y se consideró el E igual a 3.0 MPa, υ de 0.32 y densidad de 1700 kg/m 3 .…”

Section: Modelo Discreto Y Análisis Por Femunclassified

Modelo numérico de un maniquí cabeza-cuello para pruebas de choque

Szwedowicz,

Estrada,

Reynoso Jardón

et al. 2023

Rev. Ci. Tec.

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Cuando un choque automotriz ocurre, la energía de impacto se transfiere a los pasajeros lo cual provoca lesiones graves y decesos. Con el objeto de analizar el efecto de las cargas dinámicas en el cuerpo humano, el uso de maniquíes de impacto está en incremento. Sin embargo, su costo es demasiado alto, así como su accesibilidad. Por lo tanto, el presente artículo propone el diseño y desarrollo de un modelo discreto que representa la cabeza y cuello de un maniquí para pruebas de impacto utilizando el software de elemento finito Abaqus. El modelo está conformado por cabeza, región cervical (cuello) incluyendo discos cervicales y discos intervertebrales. La evaluación del conjunto cabeza-cuello se llevó a cabo a través de una prueba de péndulo. Durante la evaluación de parámetros tales como la aceleración, la fuerza de velocidad y posición angular de la cabeza fueron obtenidos. Finalmente, los resultados de la viabilidad del modelo fueron validados mediante el fenómeno de latigazo.

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Bending collapse of optimal arched thin-walled structures

Zhang

2022

Thin-Walled Structures

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Effect of end-clamping constraints on bending crashworthiness of square profiles

Cited by 5 publications

References 25 publications

Weld Strength of Friction Welding of Dissimilar Polymer Rods Fabricated by Fused Deposition Modeling

Weld Strength of Friction Welding of Dissimilar Polymer Rods Fabricated by Fused Deposition Modeling

Modelo numérico de un maniquí cabeza-cuello para pruebas de choque

Bending collapse of optimal arched thin-walled structures

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