Failure Analysis of Notched Composite Laminate with 3D Continuum Damage Mechanics
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摘要: 建立了复合材料层合板三维连续介质损伤力学模型,并将该模型应用于复合材料开口层合板的损伤破坏分析中。与相关试验中开口层合板强度和损伤破坏情况对比分析表明:本文模型能够有效地模拟开口层合板从初始损伤到完全破坏的全过程,具有较高的计算精度和良好的数值模拟收敛性。基于该模型,详细分析了在单向拉伸载荷作用下开口层合板不同铺层的损伤破坏情况。
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关键词:
- 复合材料 /
- 连续介质损伤力学模型 /
- 开口 /
- 强度 /
- 损伤扩展
Abstract: A 3D continuum damage mechanics (CDM) model was applied for predicting the strength and damageevolution of notched composite laminates. Comparing the analytical results with the experimental data,the model inthis paper is capable of simulating the damage evolution of notched composite laminates from initial damage to finalcollapse,and has high accuracy and good calculation convergence. Based on this effective model,the damagepropagation of each layer under uniaxial tensile loading condition was analysed.-
Key words:
- notched composite laminates /
- continuum damage mechanics /
- strength /
- damage evolution /
- mechanisms
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[1] Nuismer R J,Whitney J M.Uniaxial Failure of CompositeLaminates Containing Stress Concentrations[M].ASTMSTP 1975, 593:117~142 [2] Matzenmiller V, Lubliner J, Taylor R L.A constitutive model foranisotropic damage in fiber-composites[J].Mechanics of Mate-rial, 1995, 20:125~152 [3] Maimi P,et al.A continuum damage model for composite lami-nates: part I-constitutive model[J].Mechanics of Materials,2007, 39:896~908 [4] Maimi P,et al.A continuum damage model for composite lami-nates: part II-computational implementation and validation[J].Mechanics of Materials, 2007, 39:909~919 [5] Camanho P P,Maimi P,Davila C G.Prediction of size effects innotched laminates using continuum damage mechanics[J].Composites Science and Technology, 2007, 67:2715~2727 [6] 姚辽军, 赵美英, 李沛城.基于 CDM 的复合材料层合板插层补强强度分析[J].西北工业大学学报, 2011, 10:794~798 [7] Linde P, et al.Modelling and simulation of fibre metal laminates [A].2004 ABAQUS Users' Conference Boston Massachusetts:ABAQUS Inc.[C], 2004 [8] Qing H,Leon Mishnaevsky Jr.3D constitutive model of aniso-tropic damage for unidirectional ply based on physical failuremechanisms[J].Computational Materials Science, 2010,50:479~486 [9] Lemaitre J,Desmorat R.Engineering Damage Mechanics:Ductile,Creep,Fatigue and Brittle Failure[M].Springer,Berlin,Heidelberg, 2010 [10] 王跃全, 童明波, 朱书华.基于 CDM 的复合材料层合板三维非线性渐进损伤分析[J].南京航空航天大学学报, 2009,12:709~714
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