intermediate region
1.The fatigue crack growth rates and the striation spacings in A17075-T651 aluminium alloy were measured at intermediate ΔK region. A quantitative microstructural analysis of fatigue crack growth is made and the empirical relations between the growth rates caused by shear decohesion and by inclusion-fracture dimple formation and ΔK are obtained.
2.On the basis of the Skyrme interaction, the nuclear matter approach and the self-consistent semi-classical (SCSC) approach, the self-consistent study of microscopic optical potential (MOP) is generalized to the intermediate energy region (60-300MeV). The radial shape and the temperature effect of n + 90Zr optical potential are studied.
3.A model complex optical potential is employed to Calculate e--H and e--N total cross sections. The total cross settering for electron scattering by the corresponding molecule--NH3(amoina)are firstl obtained by use of the additivity rule over an incident energy range of 10--1000e V.The results are compared with experimental data and other calculation,an good agreement is obtained in intermediate and high-energy region.
4.The calculation results show that the correlation between the multiplicity of intermediate mass fragments N(subscript IMF) and total number of charged particles N(subscript c) is a sensitive observable for probing the isospin-dependent in-medium nucleon-nucleon cross section, but the isospin effects of symmetric potential on N(subscript IMF) is not obvious in the chosen energy region.
