为了从细观角度研究碳/环氧复合材料的动态力学性能,利用分离式霍普金森压杆实验装置对其组分材料TDE86#环氧树脂体系进行动态冲击压缩实验,获得不同应变率加载条件下环氧树脂的应力一应变曲线,基于应力-应变曲线分析了应变率对环氧树脂动态压缩力学性能的影响.研究结果表明:环氧树脂具有明显的应变强化效应,随着应变率的增加,环氧树脂的强度基本没有变化,最大应力时的应变逐渐减小,动态模量和压缩刚度有很大程度的提高.
参考文献
| [1] | 夏源明;杨报昌;李铭 .树脂基体及其复合材料对拉伸冲击载荷的响应[J].复合材料学报,1987,4(02):59-65. |
| [2] | HOSUR M V;ADYA M;VAIDYA U K et al.Effect of stitching and weave architecture on the high strain rate compression response of affordable woven carbon/epoxy composites[J].Computers & Structures,2003,59(04):507-523. |
| [3] | Guoyi Tang;Yunjie Yan;Xihua Chen .Dynamic damage and fracture mechanism of three-dimensional braided carbon fiber/epoxy resin composites[J].Materials & Design,2001(1):21-25. |
| [4] | HARDING J.The effect of high strain rate on material properties[A].London and New York:Elsevier Applied Science,1987:133-186. |
| [5] | 唐志平 .高应变率下环氧树脂的力学性能研究[D].合肥:中国科学技术大学,1981. |
| [6] | KOLSKY H .An investigation of the mechanical properties of materials at very high rates of loading[J].Proceedings of the Physical Society of London,1949,B62:676-700. |
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