Abstract:The corrugated cores sandwich panel has excellent mechanical properties and can meet many requirements of ship design. It has been applied in the design and manufacture of high-end ships. Therefore, this paper takes the U-type corrugated cores sandwich panels as the research object. The analytical prediction methods of U-type corrugated cores sandwich panels under in-plane quasi-static compression load are studied though experiment, simulation and theoretical analysis. By designing and carrying out quasi-static stamping test and corresponding simulation, the deformation characteristics of the U-type corrugated cores sandwich panels were analyzed and the deformation process were summarized and classified. On the basis, the deformation mode of the U-type corrugated cores sandwich panels are proposed, the geometric mathematical models of the plastic deformation of the U-type corrugated cores sandwich panels are established, and the analytical calculation formulas of the deformation resistance of the U-type corrugated cores sandwich panels are deduced. Finally, the calculated results are compared with the test results for verification. The results show that the analytical results are in good agreement with the experimental and simulation results. The analytical method presented in this paper has guiding significance for the design and evaluation of crushing performance of corrugated cores sandwich panels.
李遥,刘昆,沈超明,王加夏. 准静态压缩载荷作用下U型折叠式夹层板芯层变形机理研究[J]. 振动与冲击, 2022, 41(8): 223-230.
LI Yao,LIU Kun,SHEN Chaoming,WANG Jiaxia. A study on the deformation mechanism of U-type corrugated cores sandwich panels subjected to quasi-static compression load. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(8): 223-230.
[1] Wadley H N G. Multifunctional periodic cellular metals[J]. Philosophical Transactions of the Royal Society A Mathematical Physical & Engineering Sciences, 2006, 364(1838): 31-68.
[2] 岳灿甫,吴始栋.国外船用激光焊接波纹夹芯板的开发与应用[J].鱼雷技术, 2008, 15(4): 1-5.
YUE C F, WU S D. Introduction to development and applications of marine laserwelded lightweight sandwich panel in the us navy and european countries[J]. Torpedo Technology, 2008, 15(4):1-5.
[3]黄超,姚雄亮,张阿漫.钢夹层板近场水下爆炸抗爆分析及其在舰船抗爆防护中的应用[J].振动与冲击,2010,29(9): 73-76.
HUANG C, YAO X L, ZHANG A M. Anaysis on blast resistance of steel sandwich plate under proximity under water explosion loading and its applicatjon in ship protection[J]. Journal of Vibration and Shock, 2010, 29(9): 73-76.
[4] Jones N. Structural impact[M]. Cambridge University Press, 1997.
[5] 张延昌,王自力,张世联.折叠式夹芯层结构耐撞性能研究[J].船舶力学,2010,14(1-2): 114-120.
ZHANG Y C, WANG Z L, ZHANG S L. Simulation analysis of folded core structure under dynamic load[J]. Journal of Ship Mechanics, 2010, 14(1-2): 114-120.
[6] 张延昌,俞鞠梅,张世联,周红,王自力.V型折叠式夹层板横向压皱吸能特性研究[J].振动与冲击,2014,33(01):113-118.
ZHANG Y C, YU J M, ZHANG S L. Energy absorption of V-type corrugated cores sandwich panels under lateral crushing[J]. Journal of Vibration and Shock, 2014, 33(01): 113-118.
[7] Zhang Y C, Zhang S L, Wang Z L, et al. Quasi-static compressive behavior of U-type corrugated cores sandwich panels[J]. Journal of Ship Mechanics, 2012, 16( 12): 1417-1426.
[8] Xue Z, Hutchinson J W. A comparative study of blast-resistant metal sandwich plates[J]. International Journal of Impact Engineering, 2004, 30(10), 1283-1305.
[9] Ferri E, Antinucci E, He M Y, et al. Dynamic buckling of impulsively loaded prismatic cores[J]. Journal of the Mechanics of Materials and Structures, 2007, 1(8): 1345-1365.
[10] Lee S, Barthelat F, John W Hutchinson, et al. Dvnamic failure of metallic pvramidal tmuss core materials experiments and modeling[J]. International Journal of Plasticity, 2006, 22(11): 2118-2145.
[11] Xue Z Y, John W Hutchinson. Crush dynamics of square honeycomb sandwich cores[J]. International Journal for Numerical Methods in Engineering, 2005, 65: 2221-2245.
[12] Vaziri A, John W Hutchinson. Metal sandwich plates subject to intense air shocks[J]. International Journal of Solids andStructures, 2007, 44: 2021-2035.
[13] 刘昆,王哲,王自力.波纹夹层板冲击响应理论计算方法研究[J].振动与冲击,2019,38(02):90-97.
LIU K, WANG Z, WANG Z L. Energy absorption of V-type corrugated cores sandwich panels under lateral crushing[J]. Journal of Vibration and Shock, 2019, 38(02): 90-97.
[14] Coté E, Deshpande V S, Fleck N A, et al. The out-of-plane compressive behavior of metallic honeycombs[J]. Materials Science and Engineering A, 2004, 380: 272-280.
[15] 高振国,胡志强. 船舶碰撞搁浅中强肋框承受面内载荷时的变形机理研究[J]. 振动与冲击, 2015, 34(08): 55-60.
GAO Zhenguo, HU Zhiqiang,. Structural deformation mechanism analysis of web girders during ship collision and grounding accidents. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(8): 55-60.
[16] Villavicencio R, Soares C G. Numerical plastic response and failure of a pre-notched transversely impacted beam[J]. Ships and Offshore Structures, 2012, 7(4): 417-429.
[17] Ling Y. Uniaxial true stress-strain after necking[J]. AMP J Technol 1996;5:37-48.
[18] Korgesaar M, Romanoff J. Influence of mesh size, stress triaxiality and damage induced softening on ductile fracture of large-scale shell structures[J]. Marine Structures, 2014, 38(5.): 1-17.
[19] M.T. Tilbrook, D.D. Radford, V.S. Deshpande, et al. Dynamic crushing of sandwich panels with prismatic lattice cores[J]. International Journal of Solids and Structures,2007, 44(18):6101-6123.
[20] Radford D D , Mcshane G J , Deshpande V S , et al. Dynamic Compressive Response of Stainless-Steel Square Honeycombs[J]. Journal of Applied Mechanics, 2007, 74(4).