欢迎登录材料期刊网

材料期刊网

高级检索

由于材料制备/承载过程中其内部存在着各种尺度的裂纹,裂尖邻域的高度应力集中.会造成此区域夹杂界面有相对较高的脱粘概率.为了研究复合材料内部裂尖邻域夹杂脱粘的发展和此过程中应力强度因子的变化规律.利用含夹杂与裂尖的解析胞元法建立考虑温度效应的复合材料内部裂尖邻域的细观力学模型,并通过Weibull概率函数控制加载过程中夹杂脱粘的发生,得到夹杂的材料性质和环境温度对裂尖附近区域夹杂脱粘概率与裂纹场应力强度因子的影响规律.

参考文献

[1] Tvergaard V .Model studies of fibre breakage and debonding in a metal reinforced by short fibres[J].Journal of the Mechanics and Physics of Solids,1993,41:1309.
[2] Barley J M;Zhao Y H;Weng G J .Progressive debonding of aligned oblate inclusions and loss of stiffness in a brittle matrix composite[J].Engineering Fracture Mechanics,1996,53:897-910.
[3] Zhang J;Katsube N .A hybrid FEM for heterogeneous materials with randomly dispersed elastic inclusions[J].Finite Elements in Analysis and Design,1995,19:45-55.
[4] Lee H K;Shin D K .A computational investigation of crack evolution and interactions of microcracks and particles in particle -reinforced brittle composites[J].Computers & Structures,2004,64:419-431.
[5] Shen W;Tang C Y et al.Effect of two damage mechanisms on effective elastic properties of particulate composites[J].Composites Science and Technology,2002,62:1397-1406.
[6] Weibull W .A statistical distribution function of wide applicability[J].Journal of Applied Mechanics,Transactions of the ASME,1951,18:293-298.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%