저자명 H. W. Lee H. Huh 
Name 6th USNCCM 
Place  
Year 2001 
The generality and simplicity has made the shell element employed in a wide rage of finite element analysis for mechanics problems. The demand of shell models are rapidly growing to perform large-scale computations in important industrial applications to structural problems, sheet forming processes and composite shell structures. Since the general shell element has no stiffness associated with the drilling direction, any slight disturbance to the drilling rotation in the generalized load vector tends to amplify the rotation to an unrealistic large amount, which results in an unreliable solution. In addition, most shell elements fail in the analysis of non-smooth shell structures or shell structures with stiffener connections where three rotation components have to be considered. For remedy of that, many recent efforts have been done to include the sixth degree-of-freedom of the drilling rotation compatible to the physical meaning.
In this paper, a four-node degenerated shell element with the implicit numerical scheme is developed to calculate non-linear problems based on the Belytschko-Leviathan's linear one-point quadrature shell element with the drilling degree of freedom. In formulating for the shell element, the physical stabilization scheme is used to control the zero-energy mode of the element for one-point quadrature shell elements. The element is then extended for the nonlinear elasto-plastic analysis of shell structures undergoing large deformation in conjunction with the updated Lagrangian formulation. Many numerical problems including patch tests and benchmark tests are solved to investigate the performance of the element in comparison with conventional ones. Typical problems are the shell structure subjected to drilling moments, warped shells, and structures with sharp edges within the shell. The performance tests have been carried out focusing on the accuracy of the deformed shape and the convergence as well as the computing time. In order to demonstrate the versatility and applicability of the present shell element, the static buckling analysis of a thin-walled S-beam structure has been solved and compared with commercial codes

번호 제목 저자명 날짜 조회 수
176 TOPOLOGY OPTIMIZATION OF PLASTIC STRUCTURES USING FINITE ELEMENT LIMIT ANALYSIS file Jongsup Lee, Hoon Huh  2009.07.30 8337
175 A Phenomenological energy-based Model for PBX Simulants Considering the Mullins Effect file Kee Sun Yeom Sehwan J...  2013.02.06 8292
174 Compressive Characteristics of PBX Simulant with the Variation of the Strain Rate file Chunghee Park, Sehwan...  2012.09.21 8180
173 Dynamic Failure Characteristics of Electric Resistance Spot Welds in DP Steel Sheets [2] file Jiwoong Ha Hoon Huh J...  2012.12.10 8022
172 Variational Time Integrators for Handling Discontinuous Interfaces in Solids file S. J. Lim S. S. Cho H...  2012.03.20 7287
171 MECHANICAL CHARACTERISTICS OF PBX SIMULANT CONSIDERING STRAIN RATE EFFECT file Chunghee Park Sehwan ...  2011.07.04 7106
170 Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle Kwanghyun Ahn Hoon Hu...  2011.12.22 6983
169 Development of Buffer Stopper Using Progressive Compression Process for Crash Energy Absorption of a Railway Vehicle file Kwanghyun Ahn Hoon Hu...  2012.12.10 6838
168 Effect of helicity on the buckling behavior of single-wall carbon nanotubes file Jeehyang Huh Hoon Huh  2008.12.15 6787
167 Material Behaviors of PBX Simulant with Various Strain Rates [1] file Chunghee Park Sehwan ...  2013.01.08 6754
166 Evaluation of Dynamic Hardening Models for Metallic Materials at Wide Range of Strain Rates file Hoon Huh Kwanghyun Ah...  2012.09.26 6746
165 Micro-Tensile Tests of Aluminum Thin Foil with the Variation of Strain Rate file J.B. Kwon J. Huh H. H...  2012.06.19 6745
164 Ductile fracture of dual phase steel: mechanisms, modeling, prediction and prospective applications file Yanshan Lou, Hoon Huh  2013.02.01 6710
163 Quantification of Material Properties of Structural Materials for Warhead at Various Strain Rates file Kwanghyun Ahn Hoon Hu...  2012.09.26 6653
162 Material Properties of PBX Simulant Considering Strain Rate Effect file Chunghee Park Sehwan ...  2010.12.22 6517
161 Effect of Strain Rate on the Material Characteristics of a Fragment-Simulating Warhead and an Armor Plate file Jiwoong Ha Hoon Huh K...  2012.06.27 6452
160 Rate-dependent two-surface model for cyclic hardening behaviour of advanced high strength steel sheets file Jeehyang HUh Hoon Huh...  2012.11.06 6188
159 Effect of the Yield Stress and r-value Distribution on the Earing Profile of Cup Drawing with Yld2000-2d Yield Function file Yanshan Lou Gihyun Ba...  2010.07.14 6165
158 Prediction of forming limit diagrams of DP590 steel based on the M-K model with experimental verification file Yanshan Lou Seokbong ...  2010.12.27 6101
» Development and investigation of nonlinear shell elements with drilling degree of freedom file H. W. Lee H. Huh  2005.11.29 6075