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Numerical evaluation of amplitude-frequency characteristic of linear rotor system using distributed computation

Musil T.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

2006

z. 31

107-110

Using distributed computation is numerically assembled amplitude-frequency characteristic of the linear rotor system. Evaluation is performed on a parallel computer with distributed memory and with eight processors.

Numerical evaluation of delamination on mode II in glass fiber reinforced composites

Khoshravan M. R., Vaghefi M.

Engineering Transactions

2005

Vol. 53, iss. 1

55-68

In this paper, delamination of Mode II in a stratified glass fiber-epoxy resin under static loading is investigated. From the results obtained by the finite element method, using the criteria of Irwin-Kies and other theories of elasticity, the strain energy release rate is evaluated. The obtained numerical results are compared with known experimental and theoretical results. Considering local effects, such as fiber bridging in the finite element program, the scatter between experimental and numerical results is evaluated. The specimen is an ENF (End-Notched Flexure) beam and finite element analysis is carried out using the ANSYS software

Limitations of diffraction measurements by means of axicons.

Palchikova I.G., Smirnov S.V.

Optica Applicata

2000

Vol. 30, nr 2-3

203-211

Asymptotic and numerical evaluation of the Fresnel diffraction integral for intensity distribution in the axial focal segment of conical axicon was accomplished to find the H coordinate of maximum in cases of monochromatic or polychromatic illumination. The experimental and theoretical values of H coordinate were found to be in good agreement. It has been shown that the axicon focal segment can be used as a tape-line for the length measuring.