Accession Number : AD0489747

Title :   A TECHNIQUE FOR THE CALCULATION OF ACCELERATION WAVES IN NONLINEAR VISCOELASTIC MATERIALS.

Descriptive Note : Interim technical rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY STRUCTURAL ENGINEERING LAB

Personal Author(s) : Lubliner, J.

Report Date : SEP 1966

Pagination or Media Count : 13

Abstract : A boundary-value problem giving rise to a one-dimensional acceleration wave in a nonlinear viscoelastic material is shown to have a solution, valid in a region behind the wave front, such that stress, strain and velocity are expressed as power series in time measured from the arrival of the wave; the coefficients are functions of position and obtainable by quadrature from first-order differential equations. The results may be used to determine short-time viscoelastic behavior by means of wave-propagation experiments.

Descriptors :   *SHOCK WAVES), (*MECHANICAL WAVES, (*SHOCK WAVES, VISCOELASTICITY), WAVE PROPAGATION, MATHEMATICAL PREDICTION, BOUNDARY VALUE PROBLEMS, POWER SERIES, ACCELERATION, RESPONSE, TIME, PROPAGATION, STRESSES, VELOCITY, MEASUREMENT.

Subject Categories : Metallurgy and Metallography
      Numerical Mathematics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE