Bouncing gel balls: Impact of soft gels onto rigid surface

Y. Tanaka, Yoshihiro Yamazaki, K. Okumura

研究成果: Article

7 引用 (Scopus)

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
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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balls
gels
scaling
impact velocity
modulus of elasticity
radii

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

Tanaka, Y. ; Yamazaki, Yoshihiro ; Okumura, K. / Bouncing gel balls : Impact of soft gels onto rigid surface. :: Europhysics Letters. 2003 ; 巻 63, 番号 1. pp. 146-152.
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