the theoretical calculation of the energies of projectile like fragments (plfs) using the heavy-ion reactions between 76ge and 198pt are reported in this article. the incident beam energy was 635 mev. the calculated values of plfs are compared with the previous experimental results and it is shown that the theoretical calculations of plfs are consistent with the experimental values. the elastic...

An embeddable and portable Lex-based MAD language parser has been developed. The parser consists of a frontend which reads a MAD file and keeps beam elements, beam line data and algebraic expressions in tree-like structures, and a back-end, which processes the front-end data to generate an input file or data structures compatible with user applications. Three working programs are described, nam...

This paper analyzes the effects of structures and loads on the static bending and free vibration problems of bilayer beams. Based on static mechanical equilibrium and energy equilibrium, the static and dynamic governing equations of bilayer beam are established. It is found that the value of the thickness ratio has a significant effect on the static and dynamic responses of the beam, and the st...

Damage assessment in the actual operating process of structure is a modern and exciting problem construction engineering due to several practical knowledge about current condition inspected structures. However, faced difficulty controlling excitation Therefore, output-based structural damage identification method becoming attractive because its potential be applied an application without being ...

Abstract A simple method is proposed to model the open cracked beam structures. In this method, crack is modeled as a beam element. Hence cracked beam can be assumed to be a beam with stepped cross sections, and problem of determining natural frequency and mode shape of cracked beam, can be solved as determining these characteristics for a beam with different length and cross section. With this...

This paper investigates the dynamical behavior of an assembled beam like structure with tip masses modeling a two stage space rocket structure. The beam like structure is composed of two beams connected together carrying two masses at the free ends to model the payload, and the stabilizing fins mass properties. The effect of non-homogeneity of the structure due to different cross section proper...