本文研究了将虚拟裂纹闭合法应用ANSYS有限元计算软件,计算组合材料的应变能释放率.在有限元计算中,为了减小后处理工作量,将弹簧单元施加在裂纹尖端.在实际的有限元计算中,COMBIN14单元被用来建立有限元模型,从而将求解过程和后处理过程联系起来,自动计算出能量释放率.随后,将该方法应用于计算组合材料的应变能释放率,进行数值模拟实验.通过分析比较数值计算结果和理论值,表明该数值分析方法所计算出的应变能释放率与理论值完全符合,该数值分析方法是一种高效,精确的数值分析方法.
参考文献
| [1] | Xie D .Damage progression in tailored laminated panels with a cutout and delamination growth in sand with panels with tailored face sheets[D].Clemson:Clemson University,2002. |
| [2] | De Xie;Sherrill B. Biggers Jr. .Progressive crack growth analysis using interface element based on the virtual crack closure technique[J].Finite elements in analysis & design,2006(11):977-984. |
| [3] | Rybicki E F;Kannimen M F.A finite element calculation of stress intensity factors by a modified crack-closure integral[J].Engineering Fracture Mechanics,1977(09):931-938. |
| [4] | Shivakumar K N;Tan P W;Newman J J C.A Virtual crack-closure technique for calculating stress intensity factors for cracked three dimensional bodies[J].International Jour of Fracture,1988(03):43-50. |
| [5] | Hutchinson J W;Suo Z .Mixed-mode cracking in layered materials[J].Advances in Applied Mechanics,1992,29:63-191. |
| [6] | Suo Z .Delamination specimen for orthotropy materials[J].Journal of Applied Mechanics,Transactions of the ASME,1990,57:627-634. |
| [7] | Dundurs J.Edge-bond dissimilar orthogonal elastic wedges[J].Journal of Applied Mechanics,Transactions of the ASME,1969(36):650-652. |
| [8] | Sun C T;Jib C J.On strain energy release rates for interfacial cracks in bi-material media[J].Engineering Fracture Mechanics,1987(28):13-20. |
| [9] | Sun CT.;Qian W. .THE USE OF FINITE EXTENSION STRAIN ENERGY RELEASE RATES IN FRACTURE OF INTERFACIAL CRACKS[J].International Journal of Solids and Structures,1997(20):2595-2609. |
| [10] | Matos PP L;McMeeking R M;Charalambides P G.A method for calculating stress intensities in bimaterial fracture[J].International Journal of Fracture,1989(40):235-254. |
| [11] | Charalambides P G;Lund J;Evans A G.A test specimen for determining the fracture resistance of biomaterial interfaces[J].Journal of Applied Mechanics,Transactions of the ASME,1989(56):77-82. |
| [12] | Atkinson.C.On stress singularities and interfaces in linear fracture mechanics[J].International Journal of Fracture,1977(13):807-820. |
| [13] | Davidson,B.D.Energy release rate determination of edge delamination under combined in-plane,bending and hygrothermal loading[J].Journal of Composite Materials,1994(28):1009-1031. |
| [14] | Johnson,M.J;Sridharan,S.Evaluation of strain energy release rate in delaminated laminates under compressive[J].AIAA Journal,1999(37):954-963. |
| [15] | Raiju,I.S;Crews Jr.,J.H;Aminpour,M.A.Convergence of strain energy release rate components for edge-delaminated composite laminates[J].Engineering Fracture Mechanics,1998(30):383-396. |
| [16] | Anderson T L.Fracture Mechanics:Fundamentals and Applicaions[M].Boca Raton:CRC Press,1995 |
| [17] | 王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007:10. |
| [18] | 王新敏;李义强;许宏伟.ANSYS结构分析单元与应用[M].北京:人民交通出版社,2011:10. |
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