Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Adnan H. Nayfeh"'
Publikováno v:
NDT & E International. 36:339-348
Inclusions and other types of imperfections in nonmagnetic metals can be nondestructively detected by noncontacting magnetic measurements that sense the thermoelectric currents produced by directional heating and cooling of the specimen. The detectab
Autor:
Adnan H. Nayfeh, Wael G. Abdelrahman
Publikováno v:
Journal of Vibration and Control. 9:709-729
A micromechanical model is developed in order to study the vibration characteristics of fibrous composites with damage. Damage is taken in the form of either a broken fiber or a matrix crack normal to the fiber direction. The unidirectionally reinfor
Publikováno v:
The Journal of the Acoustical Society of America. 108:1496-1504
An exact treatment of the propagation of axisymmetric waves in coaxial anisotropic assembly of piezoelectric rod systems is presented. The rod system consists of an arbitrary number of coaxial layers, each possessing transversely isotropic symmetry p
Autor:
Adnan H. Nayfeh, Peter B. Nagy
Publikováno v:
Journal of Applied Physics. 87:7481-7490
It was recently discovered that inclusions and other types of inhomogeneities can be nondestructively detected by thermoelectric measurements in an entirely noncontact way by using high-sensitivity superconducting quantum interference device magnetom
Autor:
W.I. Faidi, Adnan H. Nayfeh
Publikováno v:
Mechanics of Materials. 32:235-241
We develop an improved continuum mixture model for the propagation of longitudinal waves in piezoelectric bi-laminated periodic media. Improvement is based on retaining the term representing the axial rate of change of the transverse displacement in
Autor:
Wael G. Abdelrahman, Adnan H. Nayfeh
Publikováno v:
Journal of Vibration and Control. 6:3-17
An approximate model for wave propagation in rods of rectangular cross section was developed that is based on neglecting the dependence of the shear stresses and the longitudinal displacement on one, or both, of the in-cross-sectional coordinates. Th
Autor:
Adnan H. Nayfeh, Wael G. Abdelrahman
Publikováno v:
Mechanics of Materials. 31:303-316
A micromechanical continuum mixture model is constructed for the stress transfer and residual stiffness in orthogonally cracked laminates. According to this technique, the discrete composite behavior is replaced by that of a higher order continuum. A
Autor:
Wael G. Abdelrahman, Adnan H. Nayfeh
Publikováno v:
Composites Part B: Engineering. 30:233-243
A micromechanical model is developed in order to study the dynamically induced stress distribution in fibrous composites with damage. Damage is taken in the form of either a broken fiber or a matrix crack normal to the fiber direction. The unidirecti
Publikováno v:
Journal of Applied Physics. 85:2347-2354
A continuum mixture theory with microstructure is developed for guided wave propagation in unidirectional fibrous composites of piezoelectric materials exhibiting hexagonal symmetry. The theory leads to the simple system of coupled equations for the
Publikováno v:
Journal of Applied Physics. 85:2337-2346
A continuum mixture theory with microstructure is developed for guided wave propagation in bilaminated periodic composites of piezoelectric materials. The theory leads to the simple governing coupled equations for the actual composites which retain t