A displacement finite element method for analyzing a beam on continuous elastic foundation is presented. A three-dimensional model which accounts for the effects of both the Filonenko-Borodich and Pastemak foundation models in a consistent and complete way is used. A variational principle is introduced with the slope field due to bending only and the displacement field approximated by independe...

This paper proposes a new type of variable-cross-section replaceable link that can isolate the plastic deformation. The and frame beam connect with expanding section by bolt along flange web separately. It is easy to design an elastic bolt, reduce slippage, facilitate replacement after earthquake. Considering large deformation range high-strength steel superior link, eccentrically braced variab...

The spin angular momentum (AM) of a light beam appears due to presence of circular or elliptic polarization. Its characterization is coupled with some paradoxical features which are commonly recognized but, to our opinion, are not satisfactorily explained in the known literature. Namely, for a spatially-homogeneous circularly polarized beam, the spin AM density is zero at every point of the bea...

13 An 80 mm long polarizing S-bender with a large cross section of 30 mm x 100 mm for the 14 instrument MIRA at the FRM II has been simulated, built and tested. The results of the 15 experiment show for the wavelength of 4.4 Å a homogenous polarization of more than 98% 16 across the bender cross section and a high transmission of above 65% of the spin up 17 component of the neutron beam. The be...

We propose to use the High Momentum Spectrometer of Hall C combined with a PbWO4 electromagnetic calorimeter in order to perform high precision measurements of the Deeply Virtual Compton Scattering (DVCS) cross section. A wide range of kinematics accessible with an 11 GeV electron beam off an unpolarized proton target will be covered. The azimuthal, energy and helicity dependences of the cross ...

We have studied diverse vector and hybrid light fields, including those with multiple polarization singularities, derived relationships for singularity indices based on the familiar Berry formula, which is normally utilized to find topological charge of a scalar vortex field. The fields pure polar-angle-dependent in beam cross-section are shown feature either lines outgoing from center or singl...

Analytical methods presented to analyze the buried steel pipelines at strike-slip fault crossing use the Euler-Bernoulli beam theory. The cross-section of a buried pipe that is completely surrounded by soil cannot rotate freely and would not be remained perpendicular to the bending line after deformation. So it would be better to take into consideration a rotation between the cross-section and ...

Abstract The flexible beam theory is widely applied in engineering, due to that many engineering structures can be regarded as beam. For the under large rotation, researches have shown consideration of geometric nonlinearity necessary: deflection will erroneously larger or diverge without nonlinearity. reason lies on dynamic stiffening effect caused by rotation well studied already, however, mo...