Accession Number : AD0814866

Title :   STRUCTURAL CONFIGURATIONS FOR INCREASING FATIGUE LIFE AT TEMPERATURES UP TO 200 C.

Descriptive Note : Summary rept. no. 4, 1 Sep 65-31 Aug 66,

Corporate Author : GRUENZWEIG UND HARTMANN A G LUDWIGSHAFEN AM RHEIN (GERMANY F R)

Personal Author(s) : Kurtze, G. ; Mechel, F.

Report Date : FEB 1967

Pagination or Media Count : 33

Abstract : A number of plastic materials are examined with respect to their applicability as core materials in damped sandwich plates having increased fatigue life over a wide range of temperatures and frequencies. The influence of the reinforcement of the core materials by means of tissues of glass-fiber and of asbestos is investigated. An attempt is made to construct a sandwich core as a combination of several compounds with different good damping qualities i.e., temperature resistivity, temperature range of high loss factor, peak loss factor and frequency range of high loss factor. A strip-wise arrangement of the core is shown to lead to better damping properties than the same materials used in a laminated arrangement. (Author)

Descriptors :   *SANDWICH CONSTRUCTION), (*FATIGUE(MECHANICS), SANDWICH CONSTRUCTION), (*REINFORCED PLASTICS, THERMAL PROPERTIES, SONIC FATIGUE, TEMPERATURE, GLASS TEXTILES, ASBESTOS, REINFORCING MATERIALS, FLUORINE COMPOUNDS, POLYMERS.

Subject Categories : Laminates and Composite Materials
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE