Abstract
Liquid that resides in a soft elastomer embedded between wearable electronics and biological tissue provides a strain-isolation effect, which enhances the wearability of the electronics. One potential drawback of this design is vulnerability to structural instability, e.g., roof collapse may lead to partial closure of the liquid-filled cavities. This issue is addressed here by overfilling liquid in the cavities to prevent roof collapse. Axisymmetric models of the roof collapse are developed to establish the scaling laws for liquid-overfilled cavities, as well as for air- and liquid-filled ones. It is established that the liquid-overfilled cavities are most effective to prevent roof collapse as compared to air- and liquid-filled ones.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 137-142 |
| Number of pages | 6 |
| Journal | International Journal of Solids and Structures |
| Volume | 117 |
| DOIs | |
| State | Published - Jun 15 2017 |
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Keywords
- Air-filled
- Liquid-filled
- Liquid-overfilled cavities
- Roof collapse
- Strain isolation
- Wearable electronics
ASJC Scopus subject areas
- Modeling and Simulation
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Applied Mathematics
Cite this
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Collapse of liquid-overfilled strain-isolation substrates in wearable electronics. / Wang, Xiufeng; Ma, Yinji; Xue, Yeguang; Luan, Haiwen; Pharr, Matt; Feng, Xue; Rogers, John A.; Huang, Yonggang.
In: International Journal of Solids and Structures, Vol. 117, 15.06.2017, p. 137-142.Research output: Contribution to journal › Article
TY - JOUR
T1 - Collapse of liquid-overfilled strain-isolation substrates in wearable electronics
AU - Wang, Xiufeng
AU - Ma, Yinji
AU - Xue, Yeguang
AU - Luan, Haiwen
AU - Pharr, Matt
AU - Feng, Xue
AU - Rogers, John A.
AU - Huang, Yonggang
PY - 2017/6/15
Y1 - 2017/6/15
N2 - Liquid that resides in a soft elastomer embedded between wearable electronics and biological tissue provides a strain-isolation effect, which enhances the wearability of the electronics. One potential drawback of this design is vulnerability to structural instability, e.g., roof collapse may lead to partial closure of the liquid-filled cavities. This issue is addressed here by overfilling liquid in the cavities to prevent roof collapse. Axisymmetric models of the roof collapse are developed to establish the scaling laws for liquid-overfilled cavities, as well as for air- and liquid-filled ones. It is established that the liquid-overfilled cavities are most effective to prevent roof collapse as compared to air- and liquid-filled ones.
AB - Liquid that resides in a soft elastomer embedded between wearable electronics and biological tissue provides a strain-isolation effect, which enhances the wearability of the electronics. One potential drawback of this design is vulnerability to structural instability, e.g., roof collapse may lead to partial closure of the liquid-filled cavities. This issue is addressed here by overfilling liquid in the cavities to prevent roof collapse. Axisymmetric models of the roof collapse are developed to establish the scaling laws for liquid-overfilled cavities, as well as for air- and liquid-filled ones. It is established that the liquid-overfilled cavities are most effective to prevent roof collapse as compared to air- and liquid-filled ones.
KW - Air-filled
KW - Liquid-filled
KW - Liquid-overfilled cavities
KW - Roof collapse
KW - Strain isolation
KW - Wearable electronics
UR - http://www.scopus.com/inward/record.url?scp=85017102217&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85017102217&partnerID=8YFLogxK
U2 - 10.1016/j.ijsolstr.2017.03.031
DO - 10.1016/j.ijsolstr.2017.03.031
M3 - Article
VL - 117
SP - 137
EP - 142
JO - International Journal of Solids and Structures
JF - International Journal of Solids and Structures
SN - 0020-7683
ER -