TY - JOUR
T1 - Damage in elastomers
T2 - Healing of internally nucleated cavities and micro-cracks
AU - Poulain, Xavier
AU - Lopez-Pamies, Oscar
AU - Ravi-Chandar, K.
N1 - Funding Information:
This work was performed during the course of a collaborative investigation into cavitation, fracture, and damage in soft materials funded by the National Science Foundation collaborative grants CMMI-1235352 and CMMI-1235138. This support is gratefully acknowledged.
Publisher Copyright:
© 2018 The Royal Society of Chemistry.
PY - 2018
Y1 - 2018
N2 - Following on the work of Poulain et al. (Damage in elastomers: Nucleation and growth of cavities, micro-cracks, and macro-cracks, Int. J. Fract., 2017, 205, 1-21), this paper presents an investigation of the response of cavities/cracks internally nucleated within a transparent PDMS elastomer that is confined between two firmly embedded stiff beads and subjected to quasistatic cyclic loading-unloading. Specifically, it is observed that cracks that nucleate and propagate to reach tens of microns in length during the loading can heal completely upon unloading. They do so autonomously within a time scale of seconds. Furthermore, the regions of the elastomer that experience healing appear to acquire higher strength or toughness.
AB - Following on the work of Poulain et al. (Damage in elastomers: Nucleation and growth of cavities, micro-cracks, and macro-cracks, Int. J. Fract., 2017, 205, 1-21), this paper presents an investigation of the response of cavities/cracks internally nucleated within a transparent PDMS elastomer that is confined between two firmly embedded stiff beads and subjected to quasistatic cyclic loading-unloading. Specifically, it is observed that cracks that nucleate and propagate to reach tens of microns in length during the loading can heal completely upon unloading. They do so autonomously within a time scale of seconds. Furthermore, the regions of the elastomer that experience healing appear to acquire higher strength or toughness.
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U2 - 10.1039/c8sm00238j
DO - 10.1039/c8sm00238j
M3 - Article
C2 - 29796463
AN - SCOPUS:85048344939
VL - 14
SP - 4633
EP - 4640
JO - Soft Matter
JF - Soft Matter
SN - 1744-683X
IS - 22
ER -