... specified residual stress remains in the body, the material hardness and the corresponding indentation depth at the inception of fully plastic deformation are examined for the first time. It is found that the hardness is remarkably dependent on the value of residual stress, especially for materials...

... in select biological materials that include bone, dentitional tissues, and a variety of woods. Our results indicate that woods are an order of magnitude more anisotropic than hard tissues and apatites. Finally, based on the available data, it is found that the anisotropy in human femur increases by over 40...

... the microstructure and normative properties (hardness and toughness) to be used as input parameters. Potential for attaining this goal has been provided by a recent constitutive model, devised by Deshpande and Evans (DE) [2008, “Inelastic Deformation and Energy Dissipation in Ceramics: A Mechanics-Based Dynamic...

... element analysis friction hardness internal stresses rubber viscoelasticity Despite rubber being so common, deep knowledge of material properties is quite often poor among design engineers. Insufficient knowledge of transmission and damping properties of rubber mounts requires industry to carry...

... at loading as in such a case self-similarity prevails. This is a very good approximation for ceramic/metallic composites but may not be so when the composite consists of two materials of roughly equal hardness. An approximate compliance formula for describing this feature is proposed showing good agreement...

... in the nanometer regime. 30 12 2004 19 01 2005 indentation hardness finite element analysis plastic deformation nanostructured materials Nanoindentation has evolved into a valuable means of determining the mechanical properties of thin films and surfaces in nanometer regimes ( 1 2 3...

... singularities at the notches or corners in vibration problems of thin plates with V-notches or with re-entrant corners, to accelerate convergence and increase the accuracy of the solution ( 3 4 ). buckling finite element analysis shear deformation fracture hardness vibrations laminates...

..., and will be accepted until four months after  final  publication  of the paper itself in the ASME JOURNAL OF APPLIED MECHANICS . 06 August 2001 14 December 2001 16 08 2002 finite element analysis fracture mechanics friction indentation deformation hardness elastoplasticity mechanical...

.... 5, 2001. Associate Editor: L. T. Wheeler. 08 May 2001 05 Oct 2001 20 06 2002 indentation anisotropic media thermoelasticity Laplace transforms elastic constants thermal stresses damping hardness bending composite materials 1 Configuration of N...

...W. W. Gerberich; N. I. Tymiak; J. C. Grunlan; M. F. Horstemeyer; M. I. Baskes For very shallow indentations in W, Al, Au, and Fe-3wt%Si single crystals, hardness decreased with increasing depth irrespective of increasing or decreasing strain gradients. As such, strain gradient theory appears...

... OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF APPLIED MECHANICS . Manuscript received by the ASME Applied Mechanics Division, Oct. 2, 2000; final revision, Nov. 18, 2001. Associate Editor: R. C. Benson. 02 Oct 2000 18 Nov 2001 20 06 2002 resonance hardness bending...

... indentation hardness damping crack-edge stress field analysis elastoplasticity stress-strain relations resonance ageing Bessel functions yield strength anisotropic media Measurement of hardness involves loading a hard sphere, cone, or pyramid indenter into the surface of a material...