Gao Haining, Li Yong
College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China.
School of Metallurgy, Northeastern University, Shenyang, 110819, China.
Sci Rep. 2025 May 14;15(1):16711. doi: 10.1038/s41598-025-01771-z.
Woven carbon fiber reinforced rubber laminated composites (WCRLC) are increasingly adopted in impact-critical engineering applications such as marine fenders and aerospace buffers, owing to their lightweight and energy absorption/reflection capabilities. However, dynamic mechanical response evaluation of WCRLC under high strain rates remains inadequately characterized. In this study, WCRLC was fabricated using silicon rubber and 2D woven carbon fiber (WCF) with the needled technique. Dynamic mechanical response and energy evolution of WCRLC were investigated using a split Hopkinson pressure bar (SHPB). The results showed that the stress at both ends of the specimen was in a state of dynamic equilibrium. The peak compressive strength and toughness of WCRLC increased with an increase of strain rate. The energy analysis indicated that with the increase of the number of layers of WCF, WCRLC demonstrated better impact resistance performance including the dynamic toughness, the energy absorption, specific energy absorption, and dissipated to incident energy ratio. Transmitted energy ratio of the five types of WCRLC was less than 1%. The WCRLC with 3 layers of WCF exhibited the highest transmission energy ratio due to balanced fiber-matrix interaction.
编织碳纤维增强橡胶层压复合材料（WCRLC）因其轻质以及能量吸收/反射能力，越来越多地应用于对冲击要求严格的工程领域，如船舶护舷和航空航天缓冲装置。然而，高应变率下WCRLC的动态力学响应评估仍缺乏充分的表征。在本研究中，采用针刺技术，用硅橡胶和二维编织碳纤维（WCF）制备了WCRLC。使用分离式霍普金森压杆（SHPB）研究了WCRLC的动态力学响应和能量演化。结果表明，试样两端的应力处于动态平衡状态。WCRLC的峰值抗压强度和韧性随应变率的增加而增加。能量分析表明，随着WCF层数的增加，WCRLC表现出更好的抗冲击性能，包括动态韧性、能量吸收、比能量吸收以及耗散能量与入射能量之比。五种类型的WCRLC的透射能量比均小于1%。由于纤维与基体相互作用平衡，三层WCF的WCRLC表现出最高的透射能量比。
