Axial crushing of flattened expanded metal tubes

Smith, Dimas; Graciano, Carlos; Martínez, Gabriela; Teixeira, Paulo Roberto

doi:10.1016/j.tws.2014.08.001

Cited by 28 publications

(12 citation statements)

References 28 publications

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“…The area under the force-displacement curve represents the amount of absorbed energy EA: (2) Where d is the axial crushing displacement and F denotes the axial crushing force. For an energy absorption structure, a high value of crash load efficiency (CLE) is expected:…”

Section: Ladybeetle-based Bbts 21 Structural Crashworthiness Criteriamentioning

confidence: 99%

“…During the past decade the behavior under axial impact of thin-walled tubes with different materials and structures has been investigated using combinations of theoretical analysis [1], numerical simulations [2,3]and experimental tests [3,4,5]. Different cross-sectional shapes of single thin-walled tube significantly affect the efficiency of the energy absorption process.…”

Section: Introductionmentioning

confidence: 99%

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Numerical analysis of the impact resistance in aluminum alloy bi-tubular thin-walled structures designs inspired by beetle elytra

Xiang

et al. 2017

J Mater Sci

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Section: Ladybeetle-based Bbts 21 Structural Crashworthiness Criteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the impact resistance in aluminum alloy bi-tubular thin-walled structures designs inspired by beetle elytra

Xiang

et al. 2017

J Mater Sci

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“…Many thin-walled structures with kinds of cross-sectional shapes are applied as crashworthy components because they are effective in energy absorption. In order to investigate the energy-absorbing properties of thin-walled structure, many studies has been carried out through theoretical analysis [ 1 , 2 , 3 ], numerical simulations [ 4 , 5 , 6 ], and experimental tests [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Microstructure of Beetle Elytra and Energy Absorption Properties of Bio-Inspired Honeycomb Thin-Walled Structure under Axial Dynamic Crushing

Hao

2018

Nanomaterials

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The beetle elytra requires not only to be lightweight to make a beetle fly easily, but also to protect its body and hind-wing from outside damage. The honeycomb sandwich structure in the beetle elytra make it meet the above requirements. In the present work, the microstructures of beetle elytra, including biology layers and thin-walled honeycombs, are observed by scanning electron microscope and discussed. A new bionic honeycomb structure (BHS) with a different hierarchy order of filling cellular structure is established. inspired by elytra internal structure. Then the energy absorbed ability of different bionic models with the different filling cell size are compared by using nonlinear finite element software LS-DYNA (Livermore Software Technology Corp., Livermore, CA, USA). Numerical results show that the absorbed energy of bionic honeycomb structures is increased obviously with the increase of the filling cell size. The findings indicate that the bionic honeycomb structure with second order has an obviously improvement over conventional structures filled with honeycombs and shows great potential for novel clean energy absorption equipment.

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“…En la literatura concerniente, algunos autores se han abocado a investigar numérica y experimentalmente los distintos usos de este material en aplicaciones estructurales, con el fin de obtener modelos de comportamiento bajo diferentes tipos de cargas [1,[4][5][6][7]. Sin embargo, muchas investigaciones se han concentrado típicamente en evaluar limitados criterios de respuesta en lugar de considerar un razonamiento multi-respuesta para descomponer el análisis de estos dispositivos en un conjunto de atributos que permitan una elección óptima y satisfactoria entre un conjunto de alternativas.…”

Section: Introductionunclassified

Análisis multi-criterio para evaluar la capacidad de absorción de energía de tubos fabricados con láminas de metal expandido y sólidas

Smith

Graciano

Martínez

2018

revuin

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Este artículo puede compartirse bajo la licencia CC BY-ND 4.0 y se referencia usando el siguiente formato: D. Smith1, C. Graciano, M. Martínez, "Análisis multi-criterio para evaluar la capacidad de absorción de energía de tubos fabricados con láminas de metal expandido y sólidas," Rev.UIS Ing., vol. 17, no. 1, pp. 69-80, 2018. Doi: https://doi.org/10.18273/revuin.v17n1-2018007 Vol. 17, no. 1, pp. 69-80, enero-junio 2018 Revista UIS Ingenierías RESUMENUn análisis multi-criterio ha sido desarrollado para evaluar la capacidad de absorción de energía de tubos circulares fabricados con láminas de metal expandido y láminas sólidas. Mediante un Proceso de Jerarquía Analítica (AHPAnalytic Hierarchy Process) se asignaron como peso a diferentes parámetros de carga y resistencia de impacto. Posteriormente, estos pesos han sido luego atribuidos a una Evaluación Proporcional Compleja (COPRAS -Complex Proportional Assessment) para seleccionar la mejor opción entre seis alternativas disponibles. Los resultados muestran que los tubos circulares fabricados con láminas de metal expandido y celdas individuales con orientación α=0º presentan características favorables para absorber energía de forma controlada y estable, así como eficientes parámetros de diseño estructural. La metodología de análisis multi-criterio constituye una valiosa herramienta en los procesos de toma de decisiones para la selección de dispositivos empleados en aplicaciones de absorción de energía.PALABRAS CLAVE: Tubos circulares; láminas de metal expandido; proceso de jerarquía analítica; evaluación proporcional compleja; absorción de energía. ABSTRACTA multi-criteria analysis has been developed to evaluate the energy absorption of round tubes made with expanded metal sheets and solid sheets. Throughout an AHP (Analytic Hierarchy Process) the assignation of the weight to different load parameter and impact resistance were given. Thereafter, these weights were then attributed to the COPRAS method (Complex Proportional Assessment) to select the best alternative among the available options. The results show that the circular tubes made with deployed metal sheets and individual cells with orientation α=0º present favorable characteristics to absorb energy in a controlled and stable way as well as efficient structural design parameters. Multi-criteria analysis methodology is a valuable support for decision making processes to the selection of devices used in energy absorbing applications.

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Axial crushing of flattened expanded metal tubes

Cited by 28 publications

References 28 publications

Numerical analysis of the impact resistance in aluminum alloy bi-tubular thin-walled structures designs inspired by beetle elytra

Numerical analysis of the impact resistance in aluminum alloy bi-tubular thin-walled structures designs inspired by beetle elytra

Investigation on Microstructure of Beetle Elytra and Energy Absorption Properties of Bio-Inspired Honeycomb Thin-Walled Structure under Axial Dynamic Crushing

Análisis multi-criterio para evaluar la capacidad de absorción de energía de tubos fabricados con láminas de metal expandido y sólidas

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