This work analyses the influence of intermediate strain rates, between 25 and 75 s⁻¹, on compressive behaviour of agglomerated cork. Quasi-static and dynamic compressive tests on an agglomerated cork with two different densities were carried out. This work complements previous research focused on higher strain rates. The influence of strain rate on less studied properties as densification strain or Poisson ratio is also studied. Digital image correlation (DIC) is applied to the estimation of the strain distribution in the longitudinal and transversal directions for both materials quantifying their heterogeneity through the specimen. Under the studied dynamic conditions, no significant influence of strain rate on the mechanical properties was found. Young's modulus, plateau stress, and Poisson ratio are higher in the densest agglomerate, whereas the densification strain is similar in both material densities. Differences in properties such as Young's modulus, Poisson ratio, plateau stress, and densification strain have been found between quasi-static and dynamic conditions for both agglomerates. In the agglomerate with the lowest density, all properties are higher in dynamic conditions than in quasi-static conditions. In the material with the highest density, Young`s modulus and plateau stress increase significantly, whereas the Poisson ratio decreases.

这项工作分析了25到75 s ^-1之间的中间应变速率的影响，关于凝聚软木的压缩行为。对具有两种不同密度的软木块进行了准静态和动态压缩测试。这项工作是对先前针对更高应变率的研究的补充。还研究了应变速率对研究较少的特性（如致密化应变或泊松比）的影响。数字图像相关性（DIC）用于估算纵向和横向方向上的应变分布，从而使两种材料都可以通过样本量化其异质性。在研究的动态条件下，没有发现应变速率对机械性能的显着影响。在最密集的团聚体中，杨氏模量，平台应力和泊松比较高，而在两种材料密度中，致密化应变相似。对于两种附聚物，在准静态和动态条件之间都发现了诸如杨氏模量，泊松比，平台应力和致密化应变等特性差异。在密度最低的附聚物中，动态条件下的所有特性均高于准静态条件下的所有特性。在密度最高的材料中，杨氏模量和平台应力显着增加，而泊松比降低。