...Leila Ladani; Steven Nelson Mechanical fatigue crack nucleation and propagation is modeled in bimodal grain size aluminum alloy. A multiscale modeling approach in conjunction with a continuum based damage modeling technique, successive initiation, is used to determine microstructural site of crack...

...S. Banerjee; K. A. Cook-Chennault Two-phase PZT-epoxy piezoelectric composites and three phase PZT-epoxy-Al composites were fabricated using a poling voltage of 0.2 kV/mm. The influence of aluminum inclusion size (nano and micron) and (lead zirconate titanate) PZT volume fraction on the dielectric...

...Volkan Eskizeybek; Ahmet Avci; Ahmet Akdemir; Ömer Sinan Şahin Fatigue crack growth and related damage mechanisms were investigated experimentally in a stainless steel/aluminum laminated composite with middle through thickness crack, and two different fracture mechanics approaches applied...

..., grade 1 titanium + 1100 -O aluminum composites. A multifactorial experiment was designed to study the effect of the above factors on the outcome measures ultimate shear strength and ultimate transverse tensile strength. Generalized linear models were used to study the statistical significance of each...

...Sanjay Kumar Thakur; Khin Sandar Tun; Manoj Gupta The present study reports a unique tensile response of pure aluminum triggered due to the presence of SiC particles at nanolength scale. Al/SiC nanocomposites were synthesized by using energy efficient microwave assisted powder metallurgy route...

... ranging from 1 μ m to 10 μ m on stainless steel, titanium, and aluminum. The results indicate that the geometrical characteristics of the interference patterns as well as the thermal properties of the substrates determine the quality of the fabricated structures. In particular, the best structures were...

... of 2.38 (normalized with respect to the initial hole radius) was calculated utilizing elastic strain measurements during 4.0% cold expansion of a set of 4.826 mm thick 7075-T6 aluminum specimens containing a 6.0 mm diameter hole. The results showed excellent agreement with numerical simulations using...

... extended, incorporating damage processes and characteristics of tertiary creep stage, adopting a time independent damage formulation proposed by the authors. An application example of the proposed approach to high purity aluminum is given. Ashby , M. F. , and Frost , H. J. , 1982...

.... Steel and aluminum sheets weakened by circular, hexagonal, square, and slotted holes arranged in square and hexagonal arrays subjected to inplane normal and shear loading are considered with porosity volume fractions in the range 0.1–0.6. Substantial variations are observed in the homogenized elastic...

...M. Kulakov; H. J. Rack Ultrasonic consolidation of 150 μ m thick 3003-H18 aluminum foil to a 3003-H18 build plate has been investigated. The effects of the normal load, vibrational amplitude, and sonotrode velocity on consolidation quality as characterized by the total linear weld density (LWD...

...C. Hari Manoj Simha; Kaan Inal; Michael J. Worswick This article analyzes the formability data sets for aluminum killed steel ( Laukonis, J. V., and Ghosh, A. K., 1978, “Effects of Strain Path Changes on the Formability of Sheet Metals,” Metall. Trans. A., 9, pp. 1849–1856 ), for Al 2008-T4 ( Graf...

...Swapnil D. Patil; R. Narasimhan; P. Biswas; R. K. Mishra We report a combined experimental and computational study of a low constraint aluminum single crystal fracture geometry and investigate the near-tip stress and strain fields. To this end, a single edge notched tensile (SENT) specimen...

... computation. We illustrate the state of development by measuring and reconstructing a planar section of an aluminum polycrystal microstructure. An orientation map of ∼ 90 grains is obtained along with a map showing the spatial variation in the quality of the fit to the data. Sensitivity to orientation...

... % SiC particles surrounded by an aluminum A6061 T6 matrix. The experimental result shows that ductile crack extension occurs only in the matrix phase. The SiC inclusions are generally not observed to crack, and decohesion of the Al ∕ Si C interfaces is also commonly not observed. The SiC...

... the localization strains when they straddle the localization band. 13 07 2007 21 11 2007 12 03 2008 aluminium grain size particle reinforced composites stress-strain relations strain localization damage finite element analysis aluminum particles grain structure Strain...

...M. Weiss; M. E. Dingle; B. F. Rolfe; P. D. Hodgson The influence of temperature on the forming behavior of an aluminum/polypropylene/aluminum (APA) sandwich sheet was studied. Shear and tensile tests were performed to determine the mechanical properties of the laminate and the component materials...

... was achieved. The effects of process parameters on bond formation and fiber/matrix bond strength are discussed. Schematic of the MMC deposit 23 10 2006 15 04 2007 aluminium silicon compounds ultrasonic welding fibre reinforced composites additive manufacturing ultrasonic...

... of the micromechanics-based predictions with carefully generated data on off-axis response of unidirectional boron/aluminum composite specimens under tensile and compressive axial loading validates the model’s predictive capability and quantifies the importance of each factor. 11 07 2006 04 02 2007...

... heating. However, the effects diminish with increasing strain rate. The analysis shows that applying electricity during deformation provides a viable alternative to increasing the workpiece temperature for deformation-based manufacturing processes. 30 12 2005 18 01 2007 brass aluminium...

... of the experimental studies are compared to those of the model material. Conclusions. It was verified that, although with some limitations, the proposed model system will be useful in the study of the formation mechanisms of the graded distributions in the FGMs. 03 02 2005 17 01 2007 aluminium...