Accession Number : AD0674258

Title :   PLANE WAVES IN LINEAR, HEREDITARY MATERIALS.

Descriptive Note : Interim technical rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY STRUCTURAL ENGINEERING LAB

Personal Author(s) : Sackman,Jerome L. ; Kaya,Izak

Report Date : MAY 1968

Pagination or Media Count : 22

Abstract : A general procedure is developed for predicting the way in which transient pulses propagate through an arbitrary, linearly viscoelastic medium characterized by creep or stress relaxation functions. By use of the Laplace transform, differential operations in transform space, and some asymptotic methods, the boundary-value problem in question is reformulated in terms of a Volterra integral equation, with the space variable playing the role of a parameter. This equation is readily resolved numerically, and results obtained by this procedure compare very well with solutions available in the literature. (Author)

Descriptors :   (*MECHANICAL WAVES, VISCOELASTICITY), WAVE PROPAGATION, PULSES, CREEP, STRESSES, INTEGRAL TRANSFORMS, BOUNDARY VALUE PROBLEMS, INTEGRAL EQUATIONS, IMPACT, ATTENUATION, CORRELATION TECHNIQUES

Subject Categories : Mechanics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE