On the validity of continuous media theory for plastic materials in magnetorheological fluids under slow compression
作者: José Antonio Ruiz-LópezRoque Hidalgo-AlvarezJuan Vicente
作者单位: 1Biocolloid and Fluid Physics Group, Department of Applied Physics, Faculty of Sciences, University of Granada
刊名: Rheologica Acta, 2012, Vol.51 (7), pp.595-602
来源数据库: Springer Nature Journal
DOI: 10.1007/s00397-012-0626-x
关键词: MagnetorheologyMagnetorheological fluidsElongational flowYield stressSqueeze flowYielding
原始语种摘要: Abstract(#br)In this manuscript, we address the long-standing question of whether a single theory for model plastic fluids is suitable to deal with the unidirectional compression problem in magnetorheological (MR) fluids. We present an extensive experimental investigation of the performance of MR fluids in slow-compression, no-slip, constant-volume squeeze mode under different magnetic field strengths (0–354 kA/m), dispersing medium viscosities (20–500 mPa·s) and particle concentrations (5–30 vol%). Normal force versus compressive strain curves reasonably collapse when normalizing by the low-strain normal force. Deviations from the squeeze flow theory for field-responsive yield stress fluids are associated to microstructural rearrangements under compression in good agreement with the...
全文获取路径: Springer Nature  (合作)
影响因子:1.626 (2012)

  • compression 压缩
  • validity 有效
  • plastic 可塑性的
  • continuous 连续的
  • materials 工业三废
  • media 中脉
  • under 在下
  • theory 理论