Comparison of Full Field and Single Inclusion Approaches to Homogenization of Composites with Non-Ellipsoidal Pores

Article Preview

Abstract:

This paper compares two approaches to predict the overall mechanical properties of solids with irregularly shaped pores. The first approach involves direct finite element simulations of representative volume elements containing arrangements of irregularly shaped pores subjected to periodic boundary conditions. The second approach utilizes numerical results for individual defect shapes in a micromechanical scheme. Several realizations of parallel and randomly oriented distributions of defects are considered. It is determined that the Mori-Tanaka micromechanical scheme provides good correlation with the full field finite element simulations.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

309-312

Citation:

Online since:

September 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Böhm, H.J., Han, W., Eckschlager, A., 2004. Multi-inclusion unit cell studies of reinforcement stresses and particle failure in discontinuously reinforced ductile matrix composites. CMES: Computer Modeling in Engineering Science 5, 5–20.

Google Scholar

[2] Eshelby, J.D., 1957. The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 241, 376–396.

DOI: 10.1098/rspa.1957.0133

Google Scholar

[3] Mori, T., Tanaka, K., 1973. Average stress in matrix and average elastic energy of materials with misfitting inclusions. Acta Metallurgica 21, 571–574.

DOI: 10.1016/0001-6160(73)90064-3

Google Scholar

[4] Kachanov, M., Tsukrov, I., Shafiro, B., 1994. Effective moduli of solids with cavities of various shapes. Applied Mechanics Reviews 47, S151.

DOI: 10.1115/1.3122810

Google Scholar

[5] Drach, B., Tsukrov, I., Gross, T., Dietrich, S., Weidenmann, K., Piat, R., Böhlke, T., 2011. Numerical modeling of carbon/carbon composites with nanotextured matrix and 3D pores of irregular shapes. International Journal of Solids and Structures 48, 2447–2457.

DOI: 10.1016/j.ijsolstr.2011.04.021

Google Scholar

[6] Widom, B., 1966. Random Sequential Addition of Hard Spheres to a Volume. The Journal of Chemical Physics 44, 3888.

DOI: 10.1063/1.1726548

Google Scholar

[7] Lind, P.G., 2009. Sequential random packings of spheres and ellipsoids. In: AIP Conference Proceedings, Vol. 219, AIP, p.219–222.

DOI: 10.1063/1.3179897

Google Scholar

[8] Donev, A., Cisse, I., Sachs, D., Variano, E. a, Stillinger, F.H., Connelly, R., Torquato, S., Chaikin, P.M., 2004. Improving the density of jammed disordered packings using ellipsoids. Science (New York, N.Y.) 303, 990–3.

DOI: 10.1126/science.1093010

Google Scholar

[9] Lubachevsky, B.D., Stillinger, F.H., Pinson, E.N., 1991. Disks vs. spheres: Contrasting properties of random packings. Journal of Statistical Physics 64, 501–524.

DOI: 10.1007/bf01048304

Google Scholar

[10] Bertei, A., Chueh, C.-C., Pharoah, J.G., Nicolella, C., 2014. Modified collective rearrangement sphere-assembly algorithm for random packings of nonspherical particles: Towards engineering applications. Powder Technology 253, 311–324.

DOI: 10.1016/j.powtec.2013.11.034

Google Scholar

[11] Byholm, T., Toivakka, M., Westerholm, J., 2009. Effective packing of 3-dimensional voxel-based arbitrarily shaped particles. Powder Technology 196, 139–146.

DOI: 10.1016/j.powtec.2009.07.013

Google Scholar

[12] Khachiyan, L.G., 1996. Rounding of Polytopes in the Real Number Model of Computation. Mathematics of Operations Research 21, 307–320.

DOI: 10.1287/moor.21.2.307

Google Scholar

[13] Altendorf, H., Jeulin, D., 2011. Random-walk-based stochastic modeling of three-dimensional fiber systems. Physical Review E 83, 041804.

DOI: 10.1103/physreve.83.041804

Google Scholar

[14] Perram, J., Wertheim, M., 1985. Statistical mechanics of hard ellipsoids. I. Overlap algorithm and the contact function. Journal of Computational Physics 58, 409–416.

DOI: 10.1016/0021-9991(85)90171-8

Google Scholar

[15] Drach, A., Drach,B., Tsukrov, I., 2014. Processing of Fiber Architecture Data for Finite Element Modeling of 3D Woven Composites. Advances in Engineering Software, 72, 18–27.

DOI: 10.1016/j.advengsoft.2013.06.006

Google Scholar