Rheometric measurement of hydrogel toughness
Name
1196830587-MIT.pdf
Size
6.69 MB
Format
Adobe PDF
Checksum (MD5)
25f4d48ba9847a02503c4c09af928fb0
Author(s)
Read, Helen E.S.B.Massachusetts Institute of Technology.
Advisor(s)
Gareth H. McKinley,
Date Issued
2020
Publisher
Massachusetts Institute of Technology
Abstract
As soft physical gels become more popular due to their biological applications, there is increased interest in measuring mechanical properties such as toughness. However, traditional tensile testing methods do not work for such materials due to the intrinsic softness of the material. We present a novel method for measuring fracture energy using a rheometer and show it is broadly consistent with the pure shear test, a standard method where the material exhibits mode I fracture. This method has potential applications in characterizing a wide range of soft and transient gels.
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 11-12).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
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