Application of a BWH-based fracture failure criterion of steel material in numerical simulation of ship collision scenarios
ZHAO Baihui1, 3 HU Zhiqiang1, 2 CHEN Gang4
1.State Key Lab of Marine Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2. School of Marine Science and Technology, Newcastle University, Newcastle NE1 7RU, UK;
3. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China;
4. China Marine Design & Research Institute, Shanghai 200011, China
Abstract：With the rapid development of computer technology, finite element numerical simulation technology is used to study ship collision and grounding scenarios to provide more reliable and accurate simulation results, it has the advantages of saving time, manpower and cost. How to reasonably define the fracture failure criterion of steel plates is a very important problem in finite element technology. Here, based on the BWH failure criterion, a set of formulas for the failure criterion of isotropic materials considering hardening was proposed and coded using the LS-DYNA program as its secondary development. The code of this new criterion was embedded in the LS-DYNA program. Then, using the updated LS-DYNA program, a finite element numerical simulation was performed for an example of ship-grounding model test. Comparing the numerical simulation results with those of the model test, the applicability of the proposed steel plate failure criterion was validated.
赵百惠1,3，胡志强1,2，陈刚4. 一种考虑钢材硬化各向同性的失效准则在船舶碰撞数值仿真中的应用[J]. 振动与冲击, 2018, 37(13): 27-34.
ZHAO Baihui1, 3 HU Zhiqiang1, 2 CHEN Gang4. Application of a BWH-based fracture failure criterion of steel material in numerical simulation of ship collision scenarios. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(13): 27-34.
[1] Storheim M, Alsos HS, Hopperstad OS, Amdahl J. A damage-based failure model for coarsely meshed shell structures[J]. International Journal of Impact Engineering 2015, 83:59–75.
[2] Kitamura O. FEM approach to the simulation of collision and grounding damage[J]. Marine Structures, 2002, 15 (4–5), 403–428.
[3] AbuBakar A, Dow RS. Simulation of ship grounding damage using the finite element method[J]. International Journal of Solids and Structures, 2013, 50: 623–636.
[4] Alsos HS, Amdahl J, et al. On the resistance to penetration of stiffened plates, Part II: Numerical analysis[J]. International Journal of Impact Engineering, 2009, 36 (7): 875–887.
[5] HillR. On discontinuous plastic states with special reference to localized necking in thin sheets [J]. Journal of Mechanics and Physics of Solids,1952, 1:19–30.
[6]Törnqvist R. Design of crashworthy ship structures [D].Copenhagen: DTU, 2003.
[7]刘敬喜，崔濛，龚榆峰.船舶碰撞仿真失效准则比较[J].中国舰船研究,2015,04:79-85.
LIU Jing-xi, CUI Meng, GONG Yu-feng. A comparative study of failure criteria in ship collision simulations [J]. Chinese Journal of Ship Research, 2015, 04:79-85.
[8] StoughtonT B. Stress-based forming limits in sheet metal forming [J]. Journal of Engineering Materials and Science, 2001, 123:417–422.
[9] 秦洪德,纪肖,申静. 船舶碰撞研究综述[C]//船舶力学学术委员会、《中国造船》编辑部.2009年船舶结构力学学术会议暨中国船舶学术界进入ISSC30周年纪念会论文集. 南京：船舶力学学术委员会、《中国造船》编辑部，2009. 196-210.
QIN Hong-de, JI Xiao, SHEN Jing.Review of ship collision [C]//Academic Committee of Ship Mechanics, Editorial Department of China Shipbuilding Industry. 2009 Symposium on Ship Structural Mechanics and Chinese Ship Academies' Commemoration of the 30th Anniversary of ISSC. Nanjing: Academic Committee of Ship Mechanics, Editorial Department of China Shipbuilding Industry, 2009. 196-210.
[10] Keeler S P, Backofen, W A. Plastic instability and fracture in sheets stretched over rigid punches[J]. Transactions ASM,1963, 56 (1):25–48.
[11] Alsos HS, Hopperstad OS, Törnqvist R, Amdahl J. Analytical and numerical analysis of sheet metal instability using a stress based instability criterion[J]. International Journal of Solids and Structures, 2008, 45:2042–2055.
[12] Arrieux R, BedrinC, BoivinM. Determination of an intrinsic forming limit stress diagram for isotropic metal sheets [C]. Proceedings of the 12th Biennial Congress IDDRG. 1982. 61–71
[13] StoughtonT B, Zhu X. Review of theoretical models of the strain-based FLD and their relevance to the stress-based FLD[J]. International Journal of Plasticity, 2004, 20:1463–1486.
[14] JieM, Cheng C H, et al.Forming limit diagrams of strain-rate-dependent sheet metals[J]. International Journal of Mechanical Sciences, 2009, 51 (4):269–275.
[15] MarinatosJN, Samuelides M. Towards a unified methodology for the simulation of rupture in collision and grounding of ships [J]. Marine Structures, 2015, 42:1–32.
[16] Atkins A G. Fracture in forming [J]. Journal of Materials Processing Technology, 1996, 56:609–618.
[17] Hogström P, Ringsberg JW, Johnson E. An experimental and numerical study of the effects of length scale and strain state on the necking and fracture behaviors in sheet metals [J]. International Journal of Impact Engineering, 2009, 36(10-11):1194–1203.
[18]BressanJ D, Williams J A. Use of a shear instability criterion to predict local necking in sheet metal deformation [J]. International Journal of Mechanical Sciences, 1983, 25:155–168.
[19] Naik V K, Mohindra A, Bantz D F. An Architecture for the Coordination of System Management Service [J]. IBM Systems Journal, 2004, 43(1):78–96.
[20]Rodd J L. Observations on conventional and advanced double hull groundingexperiments [C]//International Conference on Designs and Methodologies for Collision andGrounding Protection of Ships, 1996,13.11–13.13.
[21] Simonsen B C. Mechanics of ship grounding [D]. Copenhagen: DTU, 1997a.
