Measurement of the Modulus and Yield Strength of Soft Gels: Experiments and Numerical Simulation
Karen Goodrich, Ann Yoshimura, Robert K. Prud'homme
Chemical & Biological Engineering
An apparatus is described which permits the measurement of the modulus and yield strength of gels. The device consists of a cylindrical cell with internal fins to prevent slip of the gel at the cell walls. Pressure is applied to the cell and the volume of displaced gel is measured. A numerical finite-element simulation of gel deformation yields a proportionality constant relating pressure and displaced volume. The simulation has been run for a wide range of geometries. Model polyacrylamide gels were made having moduli from 1,500 to 9,620 Pa as measured by a rheometer. The moduli values calculated from the test cell data using the finite-element simulation were on average 6.1% lower than the values measured by the rheometer. The adaptation of the cell to measuring gel properties at elevated temperatures and pressures is discussed.
Journal of Rheology
Dive into the research topics of 'Measurement of the Modulus and Yield Strength of Soft Gels: Experiments and Numerical Simulation'. Together they form a unique fingerprint.
Yield Point Chemical Compounds 100%
yield strength Physics & Astronomy 91%
Gels Engineering & Materials Science 90%
gels Physics & Astronomy 68%
Simulation Chemical Compounds 54%
Gel Chemical Compounds 54%
Goodrich, K., Yoshimura, A., & Prud'homme, R. K. (1989). Measurement of the Modulus and Yield Strength of Soft Gels: Experiments and Numerical Simulation. Journal of Rheology, 33(2), 317-327. https://doi.org/10.1122/1.550016
Goodrich, Karen ; Yoshimura, Ann ; Prud'homme, Robert K. / Measurement of the Modulus and Yield Strength of Soft Gels : Experiments and Numerical Simulation. In: Journal of Rheology. 1989 ; Vol. 33, No. 2. pp. 317-327.
@article{e0c699aab80b4c4a8a6a36cd56edb86c,
title = "Measurement of the Modulus and Yield Strength of Soft Gels: Experiments and Numerical Simulation",
abstract = "An apparatus is described which permits the measurement of the modulus and yield strength of gels. The device consists of a cylindrical cell with internal fins to prevent slip of the gel at the cell walls. Pressure is applied to the cell and the volume of displaced gel is measured. A numerical finite-element simulation of gel deformation yields a proportionality constant relating pressure and displaced volume. The simulation has been run for a wide range of geometries. Model polyacrylamide gels were made having moduli from 1,500 to 9,620 Pa as measured by a rheometer. The moduli values calculated from the test cell data using the finite-element simulation were on average 6.1% lower than the values measured by the rheometer. The adaptation of the cell to measuring gel properties at elevated temperatures and pressures is discussed.",
author = "Karen Goodrich and Ann Yoshimura and Prud'homme, {Robert K.}",
journal = "TRANS. SOC. RHEOL.",
publisher = "Society of Rheology",
Goodrich, K, Yoshimura, A & Prud'homme, RK 1989, 'Measurement of the Modulus and Yield Strength of Soft Gels: Experiments and Numerical Simulation', Journal of Rheology, vol. 33, no. 2, pp. 317-327. https://doi.org/10.1122/1.550016
Measurement of the Modulus and Yield Strength of Soft Gels : Experiments and Numerical Simulation. / Goodrich, Karen; Yoshimura, Ann; Prud'homme, Robert K.
In: Journal of Rheology, Vol. 33, No. 2, 02.1989, p. 317-327.
T1 - Measurement of the Modulus and Yield Strength of Soft Gels
T2 - Experiments and Numerical Simulation
AU - Goodrich, Karen
AU - Yoshimura, Ann
AU - Prud'homme, Robert K.
N2 - An apparatus is described which permits the measurement of the modulus and yield strength of gels. The device consists of a cylindrical cell with internal fins to prevent slip of the gel at the cell walls. Pressure is applied to the cell and the volume of displaced gel is measured. A numerical finite-element simulation of gel deformation yields a proportionality constant relating pressure and displaced volume. The simulation has been run for a wide range of geometries. Model polyacrylamide gels were made having moduli from 1,500 to 9,620 Pa as measured by a rheometer. The moduli values calculated from the test cell data using the finite-element simulation were on average 6.1% lower than the values measured by the rheometer. The adaptation of the cell to measuring gel properties at elevated temperatures and pressures is discussed.
AB - An apparatus is described which permits the measurement of the modulus and yield strength of gels. The device consists of a cylindrical cell with internal fins to prevent slip of the gel at the cell walls. Pressure is applied to the cell and the volume of displaced gel is measured. A numerical finite-element simulation of gel deformation yields a proportionality constant relating pressure and displaced volume. The simulation has been run for a wide range of geometries. Model polyacrylamide gels were made having moduli from 1,500 to 9,620 Pa as measured by a rheometer. The moduli values calculated from the test cell data using the finite-element simulation were on average 6.1% lower than the values measured by the rheometer. The adaptation of the cell to measuring gel properties at elevated temperatures and pressures is discussed.
JO - TRANS. SOC. RHEOL.
JF - TRANS. SOC. RHEOL.
Goodrich K, Yoshimura A, Prud'homme RK. Measurement of the Modulus and Yield Strength of Soft Gels: Experiments and Numerical Simulation. Journal of Rheology. 1989 Feb;33(2):317-327. https://doi.org/10.1122/1.550016