The phenomenon of dynamic strain aging (DSA) restricts the formability of the sheet. Therefore, we have carried out research on the DSA phenomenon of fiber metal laminates in order to avoid the occurrence of this phenomenon. The comparative tensile deformation behavior of the aluminum/Gf/polyamide laminates (Al/Gf/PA TP-FMLs) and AA 2024-T3 was studied to explore the effect of high temperature weakening effect of composites layer on the DSA of TP-FMLs and reveal the underlying mechanism of DSA responsible for the TP-FMLs. First, the DSA of the TP-FMLs was confirmed by the analysis of serrated yielding flow phenomenon. Moreover, the effect of high temperature weakening effect of composites layer on DSA was investigated by characteristic features such as critical strain, stress drop amplitude, drop time, and reloading time. Finally, the mechanism of DSA of the TP-FMLs was revealed by microstructure analysis. The results indicated that the hybrid structure of TP-FMLs hindered the development of DSA, because the high-temperature weakening effect of the FRP layer undermined the function of the stress field transferred to the metal layer. In addition, the weakening of the stress field decreased the increasing rate of the dislocation multiplication density. This led to the occurrence of DSA of TP-FMLs only in the stage dominated by dislocation multiplication density, and this observation was different from that of aluminum alloy dominated by dislocation multiplication and solute atoms. Therefore, although the mechanism of DSA of TP-FMLs was still the interaction between solute atoms and dislocations, dislocation multiplication density was the dominating factor due to the weakening of stress field.

动态应变时效 (DSA) 现象限制了板材的可成形性。因此，我们对纤维金属层压板的DSA现象进行了研究，以避免这种现象的发生。研究了铝/Gf/聚酰胺层压板（Al/Gf/PA TP-FMLs）和 AA 2024-T3 的拉伸变形行为对比，以探讨复合材料层的高温弱化效应对 TP-FMLs 的 DSA 和揭示负责 TP-FML 的 DSA 的潜在机制。首先，通过锯齿状屈服流动现象的分析证实了 TP-FMLs 的 DSA。此外，通过临界应变、应力下降幅度、下降时间和重新加载时间等特征特征研究了复合材料层的高温弱化效应对 DSA 的影响。最后，通过微观结构分析揭示了 TP-FML 的 DSA 机制。结果表明，TP-FMLs的混合结构阻碍了DSA的发展，因为FRP层的高温弱化作用破坏了转移到金属层的应力场功能。此外，应力场的减弱降低了位错倍增密度的增加率。这导致 TP-FMLs 的 DSA 仅在位错倍增密度主导的阶段发生，这与铝合金的位错倍增和溶质原子主导的观察结果不同。因此，虽然 TP-FMLs 的 DSA 机制仍然是溶质原子和位错之间的相互作用，