@Article{icces.2023.09347,
AUTHOR = {Haiqi Feng, Wei Huang},
TITLE = {Dynamic Compression and Energy Absorption Behaviours of a  Nanofluidic Liquid Foam},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {27},
YEAR = {2023},
NUMBER = {3},
PAGES = {1--2},
URL = {http://www.techscience.com/icces/v27n3/55165},
ISSN = {1933-2815},
ABSTRACT = {Intensive dynamic loadings are the main threats to the structural damage of protective structures and inner 
equipment, which has attracted a lot of attention in the field of advance impulsive resistance. Nanofluidic 
liquid foam (NLF) has become a novel and efficient energy absorption system due to its reusable energy 
absorption, ultra-high load transfer, and high energy absorption ratio [1-7]. In order to solve the current 
problem that the energy absorption mechanism of NLF is still unclear, this paper conducted a systematic 
experimental study on the dynamic compression and energy absorption behaviours of NLF. The quasi-static 
cyclic compression experiments with different liquid types and loading rates were carried out, which 
revealing the effect of solid-liquid properties on the infiltration pressure and clarifying the strain rate 
insensitivity of NLF. Also, the main parameter properties affecting the energy absorption density and the 
repeatable usage rate of NLF are obtained. Moreover, the dynamic impact experiments were carried out by 
a separated Hopkinson pressure bar (SHPB) experimental setup, the influence laws of different loading rates
on the macroscopic mechanical response and microscopic infiltration behavior of NLF are discussed. It is 
found that the mechanical properties of NLF materials under dynamic impact, although still based on their 
nano-scale solid-liquid infiltration behaviour, are not exactly the same as the influence mechanism under 
quasi-static conditions. The results also indicate that gas molecules have a similarly significant effect on the 
liquid infiltration behavior and energy absorption efficiency of the NLF under high strain rate impacts. The 
research fills the lack of study on dynamic infiltration and energy absorption characteristics, and provides 
theoretical reference for the research and development of various nanofluid systems.},
DOI = {10.32604/icces.2023.09347}
}