为了考察一种小试件CAI试验方法的有效性,本文作者对复合材料层合板的准静态横向压缩特性和损伤,以及损伤后的压缩破坏进行了试验研究,采用C扫描、热揭层等技术对层合板内的损伤进行测量,并将含准静态横压损伤层合板的剩余压缩强度与低速冲击后板的压缩强度进行了比较.结果表明:在横压过程中存在分层损伤起始门槛压缩载荷值或压入深度值,以及横压载荷极限值;小板试件各界面的分层面积沿厚度方向的分布和继后的压缩破坏形式等与SACMA的CAI试验标准的情况相异.
参考文献
| [1] | Standard Tests for Toughened Resin Composites [S]. NASA RP-1142,1985. |
| [2] | Test Method for Compression after Impact Properties of Oriented Fibre Resin Composites SRM2-88 [S]. Suppliers of Advanced Composite Materials Association. |
| [3] | Advanced Composite Compression Tests [S]. Boeing Specification Support Standard BSS 7620, 1982. |
| [4] | Sankar B V. Low-velocity impact response and damage in composite materials, fracture of composites [J]. Armanios E, ed. Key Engineering Material, Transtec Publications, 1996, 121,122:549-582. |
| [5] | Prichard J C, Hogg P J. The role of impact damage in post-impact compression testing [J]. Composites, 1990, 21(6): 503-510. |
| [6] | Bibo G A, Hogg P J. Influence of reinforcement architecture on damage mechanisms and residual strength of glass-fiber/epoxy composite systems [J]. Composite Science and Technology, 1998, 58(6): 803-813. |
| [7] | Gros X E. Reviews of NDT techniques for detection of low energy impacts in carbon reinforcements [J]. SAMPE J, 1995, 31(2): 29-34. |
| [8] | 程小全, 寇长河, 郦正能. 低速冲击后复合材料层合板的压缩行为 [J]. 复合材料学报, 2001, 18(1):115-119. |
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