...Tatsuya Fujii; Takahiro Namazu; Koichi Sudoh; Shouichi Sakakihara; Shozo Inoue where S 1 is the cross-sectional area of damage-free portion and E 1 is the Young's modulus of damage-free Si portion, i.e., 168.9 GPa. Equation (1) is based on the assumption that the Poisson's ratio...

... of nanocomposite dispersion and morphology on the dynamic behavior, another nanocomposite was prepared by melt mixing of polypropylene and a modified montmorillonite (dellite) (PP dellite). The dynamic property results for PP-nanocor show an increase of both Young’s modulus and yield stress with the increasing...

... optical microscopy, scanning electron microscopy, and wavelength dispersive spectroscopy. Oxygen concentration in the consolidated sample was 13.55% less than in the as-received powders. The flexure strength, fracture toughness, Young’s modulus, and Vickers hardness of the consolidated specimens were...

... 2009 22 07 2009 12 01 2010 12 01 2010 bending finite element analysis nanoindentation plates (structures) substrates thin films Young's modulus Stiff film on compliant substrate systems are the basis for emerging technologies in flexible and stretchable electronics...

... surface strength while it is brittle and wear resistant, whereas the inner part is softer and flexible. The specific variation in Young’s modulus along the thickness of the presented composite is of particular interest in our case. The present work presents a finite element analysis and an experimental...

... quantities such as Young’s modulus or the stored energy associated to each loading-unloading cycle. Furthermore specific transition strains, A, B, C, and D, can be determined where the recovery properties change. It is demonstrated that beyond point C the strain hardening can be described by the simple...

... − 4 5.78 × 10 − 5 0.50 3.03 × 10 − 4 1.03 × 10 − 4 0.55 4.44 × 10 − 4 1.71 × 10 − 4 0.60 6.51 × 10 − 4 2.69 × 10 − 4 The ratio of Young’s modulus...

... investigated. The effects of temperature and pressure on the flexural strength, Young’s modulus, fracture toughness, relative density, activation energy, phase stability, and microstructure were assessed. The relative density and grain size increased with an increase in the temperature. The flexural strength...

.... The stress-strain curve for Al 6061-T6 is shown in Fig. 3 . Mechanical properties of the sample material (Al 6061-T6) Material Yield strength (MPa) Ultimate tensile strength (MPa) Young’s modulus E (GPa) Poisson’s ratio ν Al6061-T6 270 295 72 0.3 True strain...

... parameters that could affect grain boundary damage nucleation, the fip obtained by multiplying Simkin’s original parameter by E min ∕ E max , the ratio of Young’s modulus in the stress direction in the two grains, is best able to distinguish between cracked and intact grain boundary populations. Cracked...

... by the hyperbolic logarithm function to attain a single expression that is applied in the evaluation of the specimen’s elastic recovery ability, as shown in the unloading process. A new method is developed in the present study to evaluate both Young’s modulus and the yield strength of either a ductile or brittle...

... finite element analysis stress effects Young's modulus optical mapping nonhomogeneous materials contact stresses Nonhomogeneous materials often referred to as functionally graded materials (FGMs) represent to a classification wherein material composition and hence mechanical and thermal...

... experiments have been conducted to characterize the TPO and to verify the modeling approach ( Wang, Y., 2002, Ph.D. thesis, The University of Michigan, Ann Arbor, MI ). The model includes a quantitative rate-dependent Young’s modulus, a nonlinear viscoelastic response between initial linear elastic response...

...B. Coluzzi; A. Biscarini; G. Mazzolai; F. M. Mazzolai; A. Tuissi The internal friction Q − 1 and the Young’s modulus E of NiTi based alloys have been measured as a function of temperature after various thermomechanical and hydrogen-doping treatments given to the materials. Hydrogen is found to play...

... due to the phase transformation, an equivalent nonlinear complex Young’s modulus is introduced. This notion usually used for viscoelastic materials is adapted here to SMA. Moreover, the impact of cycling on the equivalent modulus is presented. As a conclusion, a numerical results panel obtained...

... fibers, such as polyethylene terephthalate and nylon. In order to estimate the transverse Young’s modulus of the Kevlar KM2 fibers from experimental results within small deformation range, a relation is derived between compressive load and deflection based on a classical stress-field solution 15...

... relation based on interatomic potentials for a noncentrosymmetric atomic structure at finite temperature. 04 01 2005 24 03 2005 potential energy functions entropy specific heat thermal expansion graphite diamond Young's modulus bifurcation internal stresses carbon nanotubes...

... , | b ⃗ r | , E , σ and σ 0 are, respectively, the steady state creep rate, a constant, the lattice diffusivity, the subgrain size, the magnitude of burgers vector, Young’s modulus, applied stress and threshold stress. Substituting the expression of V r from...

... on the experimental study of their fundamental mechanical properties, such as Young’s modulus, tensile and shear strength, compressibility and deformability. Selected experimental methods and techniques used for the studies will also be introduced. I conclude the review by discussing the new challenges still facing...

... Editor: H. Sehitoglu. 30 June 2003 01 March 2004 29 06 2004 carbon nanotubes carbon fibre reinforced composites micromechanics mechanical strength Young's modulus elastic constants filled polymers Since the discovery of carbon nanotubes (CNTs) by Iijima 1...