Functional Characteristics Improvement of Metal Transformable-Volume Structures for Space Applications

Authors

  • Leonid M Lobanov The E.O.Paton Electric Welding Institute (PWI)
  • Valentin S Volkov The E.O.Paton Electric Welding Institute (PWI)
  • Alexander V Yakimkin The E.O.Paton Electric Welding Institute (PWI)
  • Viktor V Savitsky The E.O.Paton Electric Welding Institute (PWI)

Keywords:

Transformable-volume structures, Surface engineering, Non-destructive testing, Electron shearography, Load-carrying shells, Foldable shells.

Abstract

Under conditions of the influence of space environment factors, the thin-walled load-carrying transformable-volume structures are subjected to volumetric deformation and long-time exposure to external loads, close to maximum permissible design values. The required functional properties of transformable-volume structures are ensured on the basis of applying surface engineering methods, whose effectiveness is difficult to confirm as there is no possibility to reproduce the space environment factors complex under the terrestrial conditions. The method for verification of applied technologies regarding the modification of surface properties was described. It was based on the comparison of finite-element and experimental-computational models of displacements in equivalent fragments of the transformable volume structures surface. Qualitative and quantitative evaluation of methods is given, allowing changing the rigiditystrength strength characteristics of transformable-volume structures for space applications without alteration of their mass and compactness.

Author Biographies

Leonid M Lobanov, The E.O.Paton Electric Welding Institute (PWI)

The E.O.Paton Electric Welding Institute (PWI),

deputy director

Valentin S Volkov, The E.O.Paton Electric Welding Institute (PWI)

The E.O.Paton Electric Welding Institute (PWI), scientific associate

Alexander V Yakimkin, The E.O.Paton Electric Welding Institute (PWI)

The E.O.Paton Electric Welding Institute (PWI), scientific associate

Viktor V Savitsky, The E.O.Paton Electric Welding Institute (PWI)

The E.O.Paton Electric Welding Institute (PWI), scientific associate

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Published

2016-03-07

Issue

Section

Original Papers