Particle clustering effects on damage mechanisms in elastomeric syntactic foams
Abstract
To elucidate the damage mechanisms in syntactic foams with hollow glass microballoon (GMB) reinforcement and elastomer matrices, in situ X-ray computed tomography mechanical testing was performed on syntactic foams with increasing GMB volume fraction. Image processing and digital volume correlation techniques identified very different damage mechanisms compared to syntactic foams with brittle matrices. Specifically, the prevailing mechanism transitioned from dispersed GMB collapse at low volume fraction to clustered GMB collapse at high volume fraction. Moreover, damage initiated and propagated earlier in closely-packed GMBs for all specimens. Both of these trends were attributed to increased interaction between closely-packed GMBs. This was validated by statistical analysis of GMB damage, which identified a consistent, inverse relationship among the probability of survival and the local coordination number (Nneighbor) across all specimens.
- Authors:
-
- Univ. of Virginia, Charlottesville, VA (United States)
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
- OSTI Identifier:
- 1559551
- Alternate Identifier(s):
- OSTI ID: 1560712
- Report Number(s):
- SAND-2018-13107J
Journal ID: ISSN 1359-8368; 669979
- Grant/Contract Number:
- AC04-94AL85000; NA-0003525
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Composites Part B: Engineering
- Additional Journal Information:
- Journal Volume: 175; Journal Issue: C; Journal ID: ISSN 1359-8368
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; Particle reinforcement; Polymer-matrix composite (PMCs); Damage mechanics; Digital volume correlation
Citation Formats
Croom, Brendan P., Jin, Helena, Carroll, Jay, Long, Kevin, and Li, Xiaodong. Particle clustering effects on damage mechanisms in elastomeric syntactic foams. United States: N. p., 2019.
Web. doi:10.1016/j.compositesb.2019.107160.
Croom, Brendan P., Jin, Helena, Carroll, Jay, Long, Kevin, & Li, Xiaodong. Particle clustering effects on damage mechanisms in elastomeric syntactic foams. United States. https://doi.org/10.1016/j.compositesb.2019.107160
Croom, Brendan P., Jin, Helena, Carroll, Jay, Long, Kevin, and Li, Xiaodong. Wed .
"Particle clustering effects on damage mechanisms in elastomeric syntactic foams". United States. https://doi.org/10.1016/j.compositesb.2019.107160. https://www.osti.gov/servlets/purl/1559551.
@article{osti_1559551,
title = {Particle clustering effects on damage mechanisms in elastomeric syntactic foams},
author = {Croom, Brendan P. and Jin, Helena and Carroll, Jay and Long, Kevin and Li, Xiaodong},
abstractNote = {To elucidate the damage mechanisms in syntactic foams with hollow glass microballoon (GMB) reinforcement and elastomer matrices, in situ X-ray computed tomography mechanical testing was performed on syntactic foams with increasing GMB volume fraction. Image processing and digital volume correlation techniques identified very different damage mechanisms compared to syntactic foams with brittle matrices. Specifically, the prevailing mechanism transitioned from dispersed GMB collapse at low volume fraction to clustered GMB collapse at high volume fraction. Moreover, damage initiated and propagated earlier in closely-packed GMBs for all specimens. Both of these trends were attributed to increased interaction between closely-packed GMBs. This was validated by statistical analysis of GMB damage, which identified a consistent, inverse relationship among the probability of survival and the local coordination number (Nneighbor) across all specimens.},
doi = {10.1016/j.compositesb.2019.107160},
journal = {Composites Part B: Engineering},
number = C,
volume = 175,
place = {United States},
year = {Wed Jun 05 00:00:00 EDT 2019},
month = {Wed Jun 05 00:00:00 EDT 2019}
}
Web of Science
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Works referencing / citing this record:
Effect of Fragile Speckle Patterns on Accuracy of Digital Volume Correlation
journal, April 2019
- Croom, B. P.; Jin, H.; Mills, B.
- Experimental Mechanics, Vol. 59, Issue 7