Zobrazeno 1 - 10
of 52
pro vyhledávání: '"M.E. Karabin"'
Publikováno v:
Metallurgical and Materials Transactions A. 40:365-376
Data are presented on plane strain fracture toughness, yield strength, and strain hardening for three orientations of samples from quarter-thickness (t/4) and midthickness (t/2) locations of alloy 7085 plates with different gages aged past peak stren
Publikováno v:
Metallurgical and Materials Transactions A. 40:354-364
In this work, the constitutive model for 7085-T7X (overaged) aluminum alloy plate samples with controlled microstructures was developed. Different lengths of 2nd step aging times produced samples with similar microstructure but different stress-strai
Publikováno v:
Materials Science and Engineering: A. 479:45-57
Hot roll bonding of aluminum plate and sheet currently is the primary manufacturing method of fuselage skin sheet for aircraft and brazing sheet for automotive applications. Tremendous challenges and opportunities exist to improve quality and product
Publikováno v:
Journal of Materials Processing Technology. 189:45-57
In this work, the split sleeve cold expansion process is studied numerically and experimentally. The finite element (FE) simulations show that a strain concentration occurs in the material near the sleeve split. The results are not very sensitive to
Publikováno v:
International Journal of Plasticity. 22:174-193
In this work, the recently proposed anisotropic yield function, Yld2004-18p [Barlat, F., Aretz, H., Yoon, J.W., Karabin, M.E., Brem, J.C., Dick, R.E., 2005. Linear transformation based anisotropic yield function, Int. J. Plasticity 21, 1009], is impl
Publikováno v:
International Journal of Plasticity. 21:1009-1039
In this paper, anisotropic yield functions based on linear transformations of the stress deviator are discussed in general terms. Two specific convex formulations are proposed to describe the anisotropic behavior of metals and alloys for a full stres
Publikováno v:
International Journal of Mechanical Sciences. 45:1483-1503
Many bulk forms of metal products are quenched after heat treatment in order to preserve material characteristics. Rapid quenching results in large thermal stress gradients that lead to high levels of residual stress. For products such as plates and
Autor:
M.E. Karabin, R.W. Schultz
Publikováno v:
Materials Science Forum. :61-68
There are a number of ways to characterize the tendency of a product to distort after machining. Two of the more popular are strain energy density and stress range. This paper looks at the relationship between these two parameters and their relations
Publikováno v:
Journal of Applied Mechanics. 63:699-705
Predictions of distortion and residual stress for rectangular bars, quenched on one surface, are compared with experimental measurements. The heat flow is unidirectional, and the dominant stress component acts along the length of the bars. Thermocoup
Autor:
Paul T. Wang, M.E. Karabin
Publikováno v:
Powder Technology. 78:67-76
The evolution of porosity during hot rolling of powder-based porous aluminum plates is analyzed by using a pressure dependent constitutive model and a finite element based rolling process model. The constitutive model, which is capable of describing