为了研究一种新型混合层板的损伤容限性能,针对两种铺层混合层板结构进行了应力比R=0.1,-1下两种锯切缺口尺寸试样的疲劳裂纹扩展试验,对比分析了获得的裂纹扩展a-N曲线数据,并通过对试样进行腐蚀去层,研究了层板的各层分层形态.结果表明,在应力比R=0.1时该新型混合层板疲劳裂纹扩展性能明显优于铝合金板；预浸料两侧添加胶膜比不添加胶膜会导致较好的疲劳裂纹扩展性能；由于裂纹桥接机制作用,锯切缺口尺寸较短层板试样比较长层板试样有较好的裂纹扩展性能；层板中心层铝板较其它层铝板裂纹扩展明显滞后；内层铝板与预浸料间沿裂纹方向呈近似三角形分层.
参考文献
| [1] | SCHIJVE J.Fatigue of structures and materials[M].Springer-Verlag GmbH,2008:589-591. |
| [2] | VLOT A;GUNNINK J W.Fibre Metal Laminates,an introduction[M].Dordrecht,The Netherlands:Kluwer Academic Publishers,2001:12-13. |
| [3] | ROEBROEKS G H J J;HOOIJMEIJER P A;KROON E J.The development of CentrAl[A].,2007 |
| [4] | FREDELL R S;GUNNINK J W;BUCCI R J."Carefree" hybrid wing structures for aging USAF transports[A].,2007 |
| [5] | R.C. Alderliesten .On the available relevant approaches for fatigue crack propagation prediction in Glare[J].International Journal of Fatigue,2007(2):289-304. |
| [6] | MARISSEN R .Fatigue Crack Growth in ARALL,A hybrid Aluminium-Aramid Composite Material, crack growth mechanisms and quantitative predictions of the crack growth rate[D].Delft,Netherlands:Delft University of Technology,1988. |
| [7] | GUO Y J;WU X R .A theoretical model for predicting crack growth in fiber reinforced metal laminates[J].Fatigue & Fracture of Engineering Materials & Structures,1998,21:1133-1145. |
| [8] | ALDERLIESTEN R C .Fatigue Crack Propagation and Delamination Growth in Glare[D].Delft,Netherlands:Thesis,Delft University of Technology,2005. |
| [9] | ALDERLIESTEN R C.Fatigue Crack Growth Modelling in Glare[A].San Antonio,Texas,USA,2000 |
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：
-
10%
-
20%
-
30%
-
40%
-
50%