抄録
After being thrown onto a solid substrate, very soft spherical gels bounce repeatedly. Separate rheological measurements suggest that these balls can be treated as nearly elastic. The Hertz contact deformation expected in the static (elastic) limit was observed only at very small impact velocities. For larger velocities, the gel ball deformed into flattened forms like a pancake. We measured the size of the gel balls at the maximal deformation and the contact time as a function of velocities for samples different in the original spherical radius and the Young modulus. The experimental results revealed a number of scaling relations. To interpret these relations, we developed scaling arguments to propose a physical picture.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 146-152 |
| ページ数 | 7 |
| ジャーナル | Europhysics Letters |
| 巻 | 63 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | Published - 2003 7 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
これを引用
Bouncing gel balls : Impact of soft gels onto rigid surface. / Tanaka, Y.; Yamazaki, Yoshihiro; Okumura, K.
：: Europhysics Letters, 巻 63, 番号 1, 07.2003, p. 146-152.研究成果: Article
}
TY - JOUR
T1 - Bouncing gel balls
T2 - Impact of soft gels onto rigid surface
AU - Tanaka, Y.
AU - Yamazaki, Yoshihiro
AU - Okumura, K.
PY - 2003/7
Y1 - 2003/7
N2 - After being thrown onto a solid substrate, very soft spherical gels bounce repeatedly. Separate rheological measurements suggest that these balls can be treated as nearly elastic. The Hertz contact deformation expected in the static (elastic) limit was observed only at very small impact velocities. For larger velocities, the gel ball deformed into flattened forms like a pancake. We measured the size of the gel balls at the maximal deformation and the contact time as a function of velocities for samples different in the original spherical radius and the Young modulus. The experimental results revealed a number of scaling relations. To interpret these relations, we developed scaling arguments to propose a physical picture.
AB - After being thrown onto a solid substrate, very soft spherical gels bounce repeatedly. Separate rheological measurements suggest that these balls can be treated as nearly elastic. The Hertz contact deformation expected in the static (elastic) limit was observed only at very small impact velocities. For larger velocities, the gel ball deformed into flattened forms like a pancake. We measured the size of the gel balls at the maximal deformation and the contact time as a function of velocities for samples different in the original spherical radius and the Young modulus. The experimental results revealed a number of scaling relations. To interpret these relations, we developed scaling arguments to propose a physical picture.
UR - http://www.scopus.com/inward/record.url?scp=30244567086&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=30244567086&partnerID=8YFLogxK
U2 - 10.1209/epl/i2003-00462-x
DO - 10.1209/epl/i2003-00462-x
M3 - Article
AN - SCOPUS:30244567086
VL - 63
SP - 146
EP - 152
JO - EPL
JF - EPL
SN - 0295-5075
IS - 1
ER -