为了研究形状记忆合金(SMA)丝增强环氧树脂复合材料的界面粘结行为,首先通过单纤维拔出试验测定了SMA/环氧树脂界面的粘结强度,重点考察了埋入深度对界面极限粘结强度及其拔出行为的影响.然后,结合ABAQUS有限元分析方法,利用基于表面内聚力行为的单元对SMA丝拔出过程中应力分布随拔出时间的变化关系进行了模拟.最后,针对SMA/环氧树脂复合材料界面粘结强度较弱的缺陷,提出了利用纳米SiO2改性SMA丝表面提升材料界面粘结强度的方法,并通过拔出试验进行了验证.结果表明:随着埋入深度从1.0 cm增加到1.5 cm和2.0 cm,最大拔出载荷显著增加,平均界面粘结强度却逐渐下降.当纤维埋入深度为2.0 cm时,在0.300 s时临界脱粘出现.利用在SMA表面涂覆纳米SiO2颗粒的方法可以增加纤维的表面粗糙度,进而有效提高SMA丝增强环氧树脂复合材料的临界拔出强度.研究结论为SMA丝在实际工程领域中的应用提供了理论指导.
参考文献
| [1] | 王振清;雷红帅;周博;付际;王晓强.基于内聚力模型的形状记忆合金短纤维增强树脂基复合材料的模拟分析[J].复合材料学报,2012(5):236-243. |
| [2] | M. Meo;F. Marulo;M. Guida;S. Russo.Shape memory alloy hybrid composites for improved impact properties for aeronautical applications[J].Composite structures,2013Jan.(Jan.):756-766. |
| [3] | Fathollah Taheri-Behrooz;Farid Taheri;Ramin Hosseinzadeh.Characterization of a shape memory alloy hybrid composite plate subject to static loading[J].Materials & design,20115(5):2923-2933. |
| [4] | J. Aurrekoetxea;J. Zurbitu;I. Ortiz de Mendibil;A. Agirregomezkorta;M. Sanchez-Soto;M. Sarrionandia.Effect of superelastic shape memory alloy wires on the impact behavior of carbon fiber reinforced in situ polymerized poly(butylene terephthalate) composites[J].Materials Letters,20115(5):863-865. |
| [5] | J. Raghavan;Trevor Bartkiewicz;Shawna Boyko;Mike Kupriyanov;N. Rajapakse;Ben Yu.Damping, tensile, and impact properties of superelastic shape memory alloy (SMA) fiber-reinforced polymer composites[J].Composites, Part B. Engineering,20103(3):p.214. |
| [6] | Hongshuai Lei;Zhenqing Wang;Liyong Tong;Bo Zhou;Ji Fu.Experimental and numerical investigation on the macroscopic mechanical behavior of shape memory alloy hybrid composite with weak interface[J].Composite structures,2013Jul.(Jul.):301-312. |
| [7] | Hongshuai Lei;Zhenqing Wang;Bo Zhou;Liyong Tong;Xiaoqiang Wang.Simulation and analysis of shape memory alloy fiber reinforced composite based on cohesive zone model[J].Materials & design,2012Sep.(Sep.):138-147. |
| [8] | Design, manufacture and evaluation of bending behaviour of composite beams embedded with SMA wires[J].Composites science and technology,200913(13):2054-2063. |
| [9] | 王玉龙;王振清;周利民;张佳宁.纳米SiO2对SMA复合材料界面强度的改善[J].哈尔滨工程大学学报,2012(1):57-61. |
| [10] | P.A. Sreekumar;Selvin P. Thomas;Jean marc Saiter.Effect of fiber surface modification on the mechanical and water absorption characteristics of sisal/polyester composites fabricated by resin transfer molding[J].Composites. Part A, Applied science and manufacturing,200911(11):1777-1784. |
| [11] | Zhang H;Tang LC;Zhang Z;Friedrich K;Sprenger S.Fracture behaviours of in situ silica nanoparticle-filled epoxy at different temperatures[J].Polymer: The International Journal for the Science and Technology of Polymers,200817(17):3816-3825. |
| [12] | Zhang H;Zhang Z;Friedrich K;Eger C.Property improvements of in situ epoxy nanocomposites with reduced interparticle distance at high nanosilica content[J].Acta materialia,20067(7):1833-1842. |
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