Analysis of elastothermodynamic damping in particle-reinforced metal-matrix composites Academic Article uri icon

abstract

  • When a composite material is subjected to a homogeneous or inhomogeneous stress field, different phases undergo different temperature fluctuations due to the well-known thermoelastic effect. As a result, irreversible heat conduction occurs and entropy is produced. This entropy production is the genesis of elastothermodynamic damping. Recently, taking the second law of thermodynamics as a starting point, a general methodology for calculating the elasto-thermodynamic damping was presented by Kinra and Milligan. Using this method, we calculate the elastothermodynamic damping for two canonical problems concerning particle-reinforced metal-matrix composites: (1) a single spherical inclusion in an unbounded matrix and (2) an N layer finite concentric composite sphere. In both cases, a uniform radial time-harmonic loading is considered. © 1995 The Minerals, Metals & Material Society.

author list (cited authors)

  • Bishop, J. E., & Kinra, V. K.

complete list of authors

  • Bishop, Joseph E||Kinra, Vikram K

publication date

  • January 1, 1995 11:11 AM