Immersed Cantilever Apparatus for Mechanics and Microscopy - Archive ouverte HAL Access content directly
Journal Articles Measurement Science and Technology Year : 2021

Immersed Cantilever Apparatus for Mechanics and Microscopy

Gilles Simon
  • Function : Author
  • PersonId : 750694
  • IdHAL : gilles
Loïc Vanel
Mathieu Leocmach

Abstract

We present here a novel cantilever based apparatus to perform translational stress or strain controlled rheology in very soft solids, and obtain simultaneous confocal imaging of the 3 dimensional microstructure. The stress is measured using eddy based sensors. Both the stress and strain are controlled by applying PID control loops on measured quantities and changing position using a micromanipulator. To get rid of surface tension forces, the sample and cantilever are immersed. This enables stress measurement and control down to 3mPa. With this apparatus, we can independently apply shear and normal stress, or strain, with same precision. We demonstrate the technical capability of the setup with steady shear strain or stress experiments on a soft protein gel system. The simultaneous confocal imaging offers insight into the macroscopic breaking observed in an increasing shear strain experiment.
Fichier principal
Vignette du fichier
paper.pdf (1.15 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-03247347 , version 1 (09-09-2021)

Identifiers

Cite

Akash Singh, Michio Tateno, Gilles Simon, Loïc Vanel, Mathieu Leocmach. Immersed Cantilever Apparatus for Mechanics and Microscopy. Measurement Science and Technology, 2021, 32 (12), pp.125603. ⟨10.1088/1361-6501/ac1c1d⟩. ⟨hal-03247347⟩
34 View
31 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More