Semi-buried structures are most commonly used at first line of defense along the border between two countries. This demands investigation of their dynamic behaviour under blast loading. Herein, a semi-buried structure with foam sandwiched walls and buttresses to reduce the effect of blast is analysed. The effect of provision of different configurations of buttresses and foam core between two la...

electromagnetic forming is a high energy rate forming process. in this process, an electromagnetic lorentz body force is used for deformation of products. in this article, electromagnetic forming process was simulated for assembly of parts as an innovative method. in this research work, the effect of important parameters of process such as discharge energy, radius and width of rectangular groov...

in this research, graphitization transformation of a commercial hypereutectoid steel called ck100 was studied by the dilatometric experiments at the range of 600 – 700 °c from prior martensitic structure. also the effect of quenching media on the initial graphitization time and completion of transformation has been discussed. also, graphitization transition from the different prior microstructu...

Thiamine deficiency in all species thus far studied affects the metabolism of pyruvic acid. The lacki until quite recently (l), of a rapid specific method for estimating pyruvic acid necessitated the use of the rapid but less specific technique introduced by Clift and Cook (2). Occasionally it has been estimated by isolation as the 2,4-dinitrophenylhydrazone, by the method of Case (3) or a modi...

Numerical methods based on finite element (FE) have proven their efficiency for many years in the thermomechanical simulation of forming processes. Nevertheless, application these to new materials requires identification and implementation constitutive flow laws within FE codes, which sometimes pose problems, particularly because strongly non-linear character behavior materials. Computational t...

Boyland, E. & Manson, D. (1951). J. chem. Soc. p. 1837. Boyland, E., Ramsay, G. S. & Sims, P. (1961). Biochem. J. 78, 376. Boyland, E. & Sims, P. (1958). Biochem. J. 68, 440. Boyland, E. & Sims, P. (1960). Biochem. J. 77, 175. Boyland, E. & Sims, P. (1961). Rep. Brit. Emp. Cancer Campgn, 89, 50. Boyland, E. & Sims, P. (1962a). Biochem. J. 84, 564. Boyland, E. & Sims, P. (1962b). Biochem. J. 84,...

In this paper, we study the scattering theory for the coupled KleinGordon-Schrödinger equation (the KGS equation) with the Yukawa type interaction, which is the certain quadratic interaction, in two space dimensions. It is well-known that for the two dimensional decoupled nonlinear Schrödinger and Klein-Gordon equations with the typical nonlinearity of the form |u|p−1u, there exist wave operato...

Although several schemes have been proposed to modify the classical Johnson–Cook (J-C) model, effect of temperature on flow stress materials at different temperatures has not clarified. In current study, investigate deformation behavior Ti-22Al-23Nb-2(Mo, Zr) alloy temperatures, uniaxial tension experiments were performed both room (RT, 28 °C) and elevated a modified J-C model was developed des...