Now showing items 21-30 of 73
Effects of elastic relaxation on aspect ratios during island growth of isotropic films
(Kluwer Academic Publishers; Chapman and Hall ; Springer Science+Business Media, 1997-01)
The effect of misfit strain on the equilibrium aspect ratio of isotropic islands has been investigated by using numerical calculations of the elastic strain energy of spherical caps on a substrate. The effects of three ...
An overview of interface cracks
(Elsevier, 1990)
In many cases cracks leading to fracture occur at interfaces between two different constituents, e.g. a fiber and the matrix in a composite. The early solutions of such problems in the context of linear elastic fracture ...
Plane-stress crack-tip fields for power-law hardening orthotropic materials
(Kluwer Academic Publishers; Springer Science+Business Media, 1988-07)
Plane stress mode I near-tip fields in orthotropic materials are examined. Plastic orthotropy is described by Hill's quadratic yield function and the strain hardening behavior is given by an appropriate generalization of ...
Failure Analysis of Adhesively Bonded Structures: From Coupon Level Data to Structural Level Predictions and Verification
(Kluwer Academic Publishers; Springer, 2005-08)
This paper presents a predictive methodology and verification through experiment for the analysis and failure of adhesively bonded, hat stiffened structures using coupon level input data. The hats were made of steel and ...
Plane-stress mixed-mode near-tip fields in elastic perfectly plastic solids
(Elsevier, 1990)
Within the context of the small-strain approach, the plane-stress mixed-mode near-tip fields of a stationary crack in an elastic perfectly plastic solid under small-scale yielding conditions are examined by finite element ...
A constitutive equation for nonlinear solids which undergo deformation induced microstructural changes
(Elsevier, 1992)
Classical theories of elasticity assume that the Cauchy stress in the material depends on the deformation gradient of particles in the current configuration. Such as assumption can usually be motivated by the presence of ...
Effects of non-singular stresses on crack-tip fields for pressure-sensitive materials, Part 1: Plane strain case
(Kluwer Academic Publishers; Springer Science+Business Media, 1994-03)
Mode I near-tip stress fields for elastic perfectly plastic pressure-sensitive materials under plane strain and small-scale yielding conditions are presented. A Coulomb-type yield criterion described by a linear combination ...
An electromagnetic forcing device
(Kluwer Academic Publishers; Society for Experimental Mechanics, Inc. ; Springer Science+Business Media, 1978-05)
The paper describes the drawbacks of an electromagnetic forcing device, of the type commonly used to study forced vibration of structures, and presents details of a feedback control system designed to overcome them. The ...
The effect of temperature on the fracture mechanism in 2014A1/15vol.%Al2O3 composite
(Elsevier, 1994-07-15)
The tensile fracture strain, stress and fracture mode for a discontinuously reinforced aluminum matrix composite, 2014Al/15vol.%Al2O3, were determined and compared with those of the unreinforced matrix material, 2014A1, ...
Deformation behavior of [gamma]-TiAl composites in the solid and mushy states
(Elsevier, 1994-07-15)
The deformation behavior of a two phase ([gamma] + [alpha]2) lamellar TiAl alloy reinforced with various amounts of AlTi2 carbide platelets has been examined by determining Vickers hardness at room temperature and in the ...