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Number of items: 44.

Article

Yoon, J., Cardoso, R. P. and Dick, R. E. (2010) Puncture fracture in an aluminium beverage can. International Journal of Impact Engineering, 37 (2). pp. 150-160. ISSN 0734-743X

Cardoso, R. P., Yoon, J. and Dick, R. E. (2010) A new axi-symmetric element for thin walled structures. Computational Mechanics, 45 (4). pp. 281-296. ISSN 0178-7675

Cardoso, R. P. and Yoon, J. (2009) Stress integration method for a nonlinear kinematic/isotropic hardening model and its characterization based on polycrystal plasticity. International Journal of Plasticity, 25 (9). pp. 1684-1710. ISSN 0749-6419

Cardoso, R. P., Yoon, J., Mahardika, M., Chaudry, S., Sousa, R. and Valente, R. (2008) Enhanced assumed strain (EAS) and assumed natural strain (ANS) methods for one-point quadrature solid-shell elements. International Journal for Numerical Methods in Engineering, 75 (2). pp. 156-187. ISSN 1097-0207

Cardoso, R. P. and Yoon, J. (2007) One point quadrature shell elements: A study on convergence and patch tests. Computational Mechanics, 40 (5). pp. 871-883. ISSN 0178-7675

Sousa, R., Yoon, J., Cardoso, R. P. and Valente, R. (2007) On the use of a reduced enhanced solid-shell finite element for sheet metal forming. International Journal of Plasticity, 23 (3). pp. 490-515. ISSN 0749-6419

Cardoso, R. P., Yoon, J. and Valente, R. (2007) Enhanced one point quadrature shell element for nonlinear applications. International Journal for Numerical Methods in Engineering , 69 (3). pp. 627-663. ISSN 0029-5981

Sousa, R., Cardoso, R. P., Valente, R., Yoon, J., Gracio, J. and Natal, R. (2006) A new one-point quadrature enhanced assumed strain solid-shell element with multiple integration points along thickness Part II - Nonlinear applications. International Journal for Numerical Methods in Engineering, 67 (2). pp. 160-188. ISSN 0029-5981

Cardoso, R. P., Yoon, J. and Valente, R. (2006) A new approach to reduce membrane and transverse shear locking for one point quadrature shell elements: linear formulation. International Journal for Numerical Methods in Engineering, 66 (2). pp. 214-249. ISSN 0029-5981

Cardoso, R. P. and Yoon, J. (2005) One point quadrature shell element with through-thickness stretch. Computer Methods in Applied Mechanics and Engineering, 194 (9-11). pp. 1161-1199. ISSN 0045-7825

Cardoso, R. P. and Yoon, J. (2005) One point quadrature shell elements for sheet metal forming analysis. Archives of Computational Methods in Engineering, 12. pp. 3-66. ISSN 1134-3060

Sousa, R., Cardoso, R. P., Valente, R., Yoon, J., Gracio, J. and Natal, R. (2005) A new one-point quadrature enhanced assumed strain solid-shell element with multiple integration points along thickness Part I - geometrically linear applications. International Journal for Numerical Methods in Engineering, 62 (7). pp. 952-977. ISSN 0029-5981

Cardoso, R. P., Yoon, J., Gracio, J., Barlat, F. and Cesar de Sa, J. (2002) Development of a one point quadrature shell element for nonlinear applications with contact and anisotropy. Computer Methods in Applied Mechanics and Engineering, 191 (45). pp. 5177-5206. ISSN 0045-7825

Conference or Workshop Item

Dick, R. E., Cardoso, R. P., Paulino, M. and Yoon, J. (2014) Benchmark 4: Wrinkling during cup drawing. In: The 9th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET2014, Melbourne, Australia, 6 - 10 January 2014.

Kitayama, K., Cardoso, R. P., Yoon, J., Uemori, T. and Yoshida, F. (2012) Cyclic crystal plasticity finite element analysis and experimental validation of HCP materials. In: International Symposium on Plasticity 2012, Rio Mar Beach Resort & Spa. , January 3-8, 2012.

Cardoso, R. P., Kitayama, K., Yoon, J., Uemori, T. and Yoshida, F. (2012) Thermomechanical crystal plasticity finite element analysis and experimental validation of HCP materials. In: International Symposium on Plasticity 2012, Rio Mar Beach Resort & Spa, 3-8 January, 2012.

Graca, A., Alcantara, I., Cardoso, R. P. and Yoon, J. (2011) Subspace analysis to alleviate the volumetric locking in the 3D solid-shell EFG method. In: International Conference on Advanced Computational Methods in Engineering, 2011, Liège (Belgium), November 14th to 17th, 2011.

Cardoso, R. P. and Yoon, J. (2011) A new axi-symmetric solid-shell element with linear through-thickness stretch for sheet forming applications. In: 8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, Seoul, Republic of Korea, August 21-26, 2011 .

Cardoso, R. P., Yoon, J. and Dick, R. E. (2010) A new axi-symmetric solid-shell element for sheet metal forming applications. In: NUMIFORM2010 International Conference, Pohang University of Science and Technology, Pohang, Republic of Korea, June 13-17, 2010.

Cardoso, R. P. and Yoon, J. (2010) Rate-independent crystal plasticity based on Euler-Backward method and its application to earing prediction of a circular cup drawing. In: The Sixteenth International Symposium on Plasticity and its Current Applications, St Kitts, January 2010.

Cardoso, R. P. and Yoon, J. (2008) Stress integration and material characterization for a nonlinear kinematic hardening model. In: The Fourteenth International Symposium on Plasticity and its Current Applications, Kona, Hawaii, Jan 3-8, 2008.

Costa, A., Cardoso, R. P., Yoon, J. and Morais, A. (2007) The force method for the calculation of stress intensity factors on arbitrary meshes. In: IX International Conference on Computational Plasticity, COMPLAS IX 2007, Barcelona, Spain, September 5-7, 2007. Barcelona, Spain: UNSPECIFIED

Cardoso, R. P., Yoon, J. and Gracio, J. (2007) Material models to study the bauschinger effect on an aluminum shear test specimen. In: NUMIFORM 2007, Materials Processing and Design: Modeling, Simulation and Applications, Porto, Portugal, 10th July 2007.

Cardoso, R. P., Yoon, J., Mahardika, M. and Choudry, S. (2007) Exploring new horizons in the solid-shell element technology for general nonlinear applications with bending. In: NAFEMS International Conference, Vancouver, Canada, 22-25 May, 2007 , Vancouver, Canada, 22-25 May, 2007. Vancouver, Canada: UNSPECIFIED

Valente, R., Sousa, R., Jorge, N., Cardoso, R. P., Simoes, F., Yoon, J. and Gracio, J. (2007) An overview of sheet metal forming simulations with enhanced assumed strain elements. In: NUMIFORM 2007, Materials Processing and Design: Modeling, Simulation and Applications, June, 2007.

Yoon, J., Cardoso, R. P., Bray, G., Barlat, F., Schultz, R. and Bucci, R. (2007) Crack propagation toward friction stir weld. In: Plasticity of Conventional and Emerging Materials: Theory and Application, The 13th International Symposium on Plasticity and Its Current Applications,Girdwood, Alaska, 2-6 June, 2007 , Girdwood, Alaska, 2-6 June, 2007.

Yoon, J., Cardoso, R. P. and Barlat, F. (2006) Development of arbitrary crack propagation method for macro and micro applications, multiaxial cyclic plasticity and fatigue crack propagation. In: The 12th International Symposium on Plasticity & its Current Applications, July, 2006.

Sousa, R., Yoon, J., Cardoso, R. P., Valente, R. and Gracio, J. (2006) Application of the reduced enhanced solid-shell finite element (RESS) for sheet metal forming applications. In: WCCM VII, Seventh World Congress in Computational Mechanics, Los Angeles, California, USA, July 16-22, 2006 , Los Angeles, California, USA, July 16-22, 2006 . Los Angeles, California, USA: UNSPECIFIED

Valente, R., Sousa, R., Cardoso, R. P., Yoon, J., Jorge, N. and Gracio, J. (2006) Sheet metal forming simulations using finite elements with enhancing variables. In: WCCM VII, Seventh World Congress in Computational Mechanics,Los Angeles, California, USA, July 16-22, 2006 , Los Angeles, California, USA, July 16-22, 2006 . Los Angeles, California, USA: UNSPECIFIED

Cardoso, R. P., Yoon, J. and Valente, R. (2006) An enhanced assumed strain one point quadrature shell element for nonlinear applications. In: WCCM VII, Seventh World Congress in Computational Mechanics, Los Angeles, California, USA, July 16-22, 2006, Los Angeles, California, USA, July 16-22, 2006. Los Angeles, California, USA: UNSPECIFIED

Cardoso, R. P., Yoon, J., Sousa, R., Valente, R. and Gracio, J. (2006) One point quadrature solid-shell elements for sheet metal forming applications. In: IDDRG 2006 Conference, Porto, Portugal, 19-21 June 2006, Porto, Portugal, 19-21 June, 2006. Porto, Portugal: UNSPECIFIED

Sousa, R., Yoon, J., Cardoso, R. P., Valente, R. and Gracio, J. (2006) Solid-shell element development emphasizing on plasticity applications. In: 9th ESAFORM Conference on Material Forming, Glasgow, UK, April, 2006, Glasgow, UK, April, 2006. Glasgow, UK: UNSPECIFIED

Cardoso, R. P., Yoon, J. and Valente, R. (2006) An improvement in membrane and transverse shear behaviors for one point quadrature shell elements. In: 9th ESAFORM Conference on Material Forming, Glasgow, U.K, April 2006, Glasgow, UK, April 2006. Glasgow, UK: UNSPECIFIED

Cardoso, R. P., Yoon, J., Valente, R., Gracio, J., Simoes, F. and Sousa, R. (2005) A nonlinear kinematic hardening model for the simulation of cyclic loading paths in anisotropic aluminum alloy sheets. In: 8th International Conference on Computational Plasticity (COMPLAS 2005), Barcelona, Spain, September 5-8, 2005 , Barcelona, Spain, September 5-8, 2005. Barcelona, Spain: UNSPECIFIED

Sousa, R., Cardoso, R. P., Valente, R., Yoon, J., Gracio, J. and Natal, R. (2005) Development of a one point quadrature EAS solid-shell element for sheet forming processes. In: Numisheet 2005, Detroit, USA, 15-19 August, 2005, Detroit, USA, 15-19 August, 2005. Detroit, USA: UNSPECIFIED

Cardoso, R. P. and Yoon, J. (2005) One point quadrature shell element with through-thickness stretch. In: Numisheet, 2005, Detroit USA, 15-19 August, 2005, Detroit, USA, 15-19 August, 2005. Detroit, USA: UNSPECIFIED

Sousa, R., Cardoso, R. P., Valente, R., Yoon, J., Gracio, J. and Natal, R. (2004) Development of a one point quadrature EAS solid-shell element. In: NUMIFORM’04, 8th International Conference on Numerical Methods in Industrial Forming Processes, Ohio State University, Ohio, USA, 13-17th July, 2004.

Yoon, J., Cardoso, R. P., Wang, S. and Choudry, S. (2004) A general purpose one point quadrature shell element based on resultant-stress. In: NUMIFORM’04, 8th International Conference on Numerical Methods in Industrial Forming Processes, Ohio State University, Ohio, USA, 13-17th June, 2004.

Yoon, J., Cardoso, R. P., Valente, R. and Gracio, J. (2003) Nonlinear kinematic hardening model for general non-quadratic anisotropic yield functions. In: Computational Plasticity, COMPLAS VII, 7th International Conference on Computational Plasticity, Barcelona, Spain, April 2003.

Cardoso, R. P., Yoon, J., Gracio, J. and Barlat, F. (2002) One point quadrature shell element for nonlinear applications. In: NUMISHEET’02, Proceedings of the 5th International Conference and Workshop on Numerical Simulation of 3D Sheet Forming Processes, Jeju Island, South Korea, October, 2002.

Cardoso, R. P., Yoon, J., Gracio, J., Barlat, F., Cesar de Sa, J. and Valente, R. (2002) Projecto e optimizacao de processos de conformacao plastica de chapa recorrendo ao metodo dos elementos finitos. In: Metodos Numericos En Ingenieria V, SEMNI, Madrid, Spain, July, 2002.

Cardoso, R. P., Yoon, J., Gracio, J., Barlat, F. and Gracio, J. (2001) Development of one point quadrature shell element for large deformation considering elasto-plastic material modeling. In: 6th International Conference on Numerical Methods in Industrial Forming Processes, August 2001.

Yoon, J., Chung, K., Cardoso, R. P. and Gracio, J. (2000) Blank design for sheet metal product based on direct design method. In: 3rd International Conference on Forging Processes - XX SENAFOR, October 2000.

Cardoso, R. P., Gracio, J., Barlat, F. and Yoon, J. (2000) Finite element analysis of shear test in aluminium alloys. In: 3rd International Conference on Forging Processes - XX SENAFOR, October 2000.

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