Publicado

2017-07-01

Numerical and experimental studies of compression-tested copper, mortar contact method

Estudio numérico y experimental del ensayo de compresión del cobre, método de contacto mortar

Palabras clave:

Compression test, barreling, copper, finite element, mortar contact, friction (en)
Ensayo de compresión, abarrilamiento, cobre, elemento finito, contacto de mortero, fricción (es)

Autores/as

Simulation of compression test of copper is made with the mortar contact method and assuming: axial symmetry, multiple point constraint of type plane, concentrate load and coulomb friction. Copper is simulated like isotropic material, elastic until it yields stress, and then like a hardening material with incremental plasticity. Copper behavior was calculated from experiments. Seventeen compression tests without lubrication were carried out to cylindrical samples at room temperature. The Stress vs. Strain relationship was calculated using two friction corrections; the Rowe Correction and the Dieter Correction. It was concluded that the simulation made with the mortar contact method and the Dieter Correction is a good alternative to simulate the compression test, being the differences between the simulation and the experiments lower than 7.33%, the hypothesis of axial symmetric does not keep away the simulation of the reality and new numerical analysis will allow the development of better friction corrections.
La simulación del ensayo de compresión del cobre se realizó con el método de contacto con mortero y asume: simetría axial, restricción de puntos múltiples de tipo plano, carga concentrada y fricción coulombiana. El cobre se simula como material isotrópico, elástico hasta fluencia, y luego como un material endurecible con plasticidad incremental. El comportamiento del cobre se calculó a partir de experimentos. Se realizaron diecisiete ensayos de compresión sin lubricación a muestras cilíndricas a temperatura ambiente. La relación Esfuerzo vs. Deformación  se calculó usando dos correcciones por fricción; La Corrección de Rowe y la Corrección Dieter. Se concluye que: la simulación realizada con el método de contacto con mortero y la Corrección Dieter es una buena alternativa para simular la prueba de compresión, siendo la diferencia entre la simulación y los experimentales inferior a 7,33%, la hipótesis de simetría axial no aleja la simulación de la realidad y nuevos análisis numérico permitirán el desarrollo de mejores correcciones por fricción.

Descargas

Los datos de descargas todavía no están disponibles.

Citas

Kalpakjian, S. y Schimd, S., Manufactura, Ingeniería y Tecnología 5ta edición. Mexico: Pearson, 2008.

Hsua, Y., Yangb, T., Sungc, S. and Changd, Y., Constructing the predictive models of friction coefficient. Materials Science Forum, 505-507, pp. 745-750, 2006.

Hüeber, S., Discretization techniques and efficient algorithms for contact problems, PhD. Thesis, Universität Stuttgart, Germany, 2008.

Dhondt, G., CalculiX CrunchiX USER’S MANUAL [online]. version 2.7., 2014, Available at: www.calculix.de.

Oden, J. and Martins, J., Models and computational methods for dynamic friction phenomena. Computer Methods in Applied Mechamics and Engineering, 52, pp. 527-634, 1985. DOI: 10.1016/0045-7825(85)90009-X.

Weißenfels, C. and Wriggers, P., A contact layer element for large deformations. Computational Mechanics, 55(5), pp. 873-885, 2015. DOI: 10.1007/s00466-015-1140-7

Laursen, T., Puso M. and Sanders, J., Mortar contact formulations for deformable–deformable contact: Past contributions and new extensions for enriched and embedded interface formulations. Computer Methods in Applied Mechanics and Engineering, 205(1), pp. 3-15, 2012. DOI: 10.1016/j.cma.2010.09.006

Yang, B., Laursen, T. and Meng, X., Two dimensional mortar contact methods for large deformation frictional sliding. International Journal for Numerical Methods in Engineering, 62(9), pp. 1183-1225. 2005. DOI: 10.1002/nme.1222

Doca, T., Andrade, F. and Cesar, J., A frictional mortar contact approach for the analysis of large inelastic deformation problems International Journal of Solids and Structures, 51(9), pp. 1697-1715, 2014. DOI: /10.1016/j.ijsolstr.2014.01.013

ASTM E 9-09A, Standard test methods of tensiontesting of metallic materials at room temperature, ASTM Standards, Vols. 03-01, 2010.

Rowe, G., An introduction to the principles of metalworking. London: Edward Arnold, 1965.

Dieter, G., Mechanical Metallurgy 3er Edition. New York: McGraw-Hill, 1986.

Narushima, M., Nakai, T. and Niinomi, M., Advances in metallic biomaterials: Processing and Applications. Sendai: Springer, 2015.

Serway, R. and Jewett, J., Physics for Scientists and Engineers, Volume 1. Belmont: Cengage Learning, 2009.

Remacle, J. and Geuzaine, C., GMSH: A three-dimensional finite element mesh generator with built-in pre- and post-processing facilities. International Journal for Numerical Methods in Engineering, 79(11), pp. 1309-1331, 2009. DOI: 10.1002/nme.2579

Rasti, J., Najafizadeh, A. and Meratian, M., Correcting the stress-strain curve in hot compression test using finite element. International Journal of ISSI, [online]. 8(1), pp. 26-33, 2011. Available at: http://journal.issiran.com/article_6374.html

Chen, Z., Xu, S. and Dong, X., Deformation behavior of AA6063 Aluminium alloy after removing friction effect under hot working conditions. Acta Metallurgica Sinica (English Letters), 21(6), pp. 451-458, 2008.

Raja, R., Lakshminarasimhan, S. and Murugesan, P., Investigation of barreling radius and top surface area for cold upsetting of aluminum specimens. International Journal of Modern Engineering Research, [online]. 3(6), pp. 3852-3862, 2013. Available at: http://www.ijmer.com/papers/Vol3_Issue6/DA3638523862.pdf

Boresi, A., Schmidt, R. and Sidebottom, O., Advanced Mechanics of Materials, 5ed. New York: Wiley, 1993.

Berrocal, L., Elasticidad. Mexico: McGraw-Hill, 1998.

Schackelford, J., Ciencia de materiales para ingenieros. Mexico: Pearson, 1995.

Dunne, F. and Petrinic, N., Introduction to computational plasticity. Oxford: Oxford University Press, 2005.

Gordon, J., Estructuras o porque las cosas no se caen. Buenos Aires: CALAMAR Ediciones, 2004.

Hartmann, S., Kontaktanalyse dünnwandiger Strukturen bei großen Deformationen,: PhD. Thesis, Institut für Baustatik und Baudynamik, Universität Stuttgart, Germany, 2007.