Affiliations: [a] Razak School of Engineering and Advanced Technology,
Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur, Malaysia | [b] School of Mechanical and Manufacturing Engineering,
Dublin City University, Dublin 9, Ireland
Correspondence:
[*]
Corresponding author: Razak School of Engineering and Advanced
Technology, Universiti Teknologi Malaysia, Jalan Semarak, 54100 Kuala Lumpur,
Malaysia. Tel./Fax: +603 2615 4632/ +603 2693 4844; E-mail: amri@ic.utm.my
Abstract: Magnetorheological (MR) fluid exhibits a perceptible change of
rheological properties in reaction to external magnetic field. The MR fluids
are currently enjoying renewed interest within the technical community in terms
of the fundamental and applied research. MR fluids behaviour in squeeze mode is
one of the areas that remain unknown as compared to valve and shear modes.
Therefore, this paper presents stress-strain relationships of MR fluids under
compression and tension tests. The results demonstrated that MR fluid
corresponded to the changes in compressive and tensile stresses due to the
changes in magnetic field strength. The compressive stresses were found to be
much higher than the tensile stresses for the same experimental parameters. The
behaviour of the MR fluids were dependent on the types of the carrier fluid and
magnetic field strength. Furthermore, combinations of the stress-strain curves
under quasi-static compression and tension modes were matched with the curves
under dynamic loading.
