A refined model for three-point bending of sandwich panels. 1. Deflections and bending stresses
| Autor: | V. A. Polyakov, I. G. Zhigun, R. P. Shlitsa, V. V. Khitrov |
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| Rok vydání: | 1997 |
| Předmět: |
Materials science
Polymers and Plastics Three point flexural test business.industry General Mathematics Bending Structural engineering Condensed Matter Physics Rotation Biomaterials Shear (sheet metal) Transverse plane Flexural strength Mechanics of Materials Solid mechanics Ceramics and Composites Composite material business Sandwich-structured composite |
| Zdroj: | Mechanics of Composite Materials. 33:526-542 |
| ISSN: | 1573-8922 0191-5665 |
| DOI: | 10.1007/bf02269612 |
| Popis: | Design formulas for the flexural characteristics of sandwich panels under three-point loading by point forces, taking into account local effects, have been derived. Transverse deformation of the normal in the modified model is deduced in terms of the difference between deflections of face layers. It is considered that the rotation of the normal depends also on shear of the filler. The deflections, local curvatures, and bending stresses, dependent on the face-layer thicknesses and transverse characteristics of the filler, are studied. The danger of initial failure caused by the local moment stresses at the central panel section is shown. Comparative estimates refining the conventional designs are established. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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