Accession Number : AD0657147

Title :   PURE BENDING OF METAL HONEYCOMB PLATES,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Tate,Manford B.

Report Date : MAY 1956

Pagination or Media Count : 39

Abstract : The report presents a general solution of the problem of the bending of a flat plate of metal honeycomb construction when it is subjected to constant bending moment. The solution is obtained from considerations of the physical requirement for displacement and strain continuity in the honeycomb core and face sheets. To simplify analysis, constant or average stresses were sought in preference to seeking the exact stress distribution in each part of the structure. This simplification leads to an approximate solution, but the approximation appears to be acceptable, as it is not likely to cause a serious discrepancy when the analysis is used in making design estimates, comparisons, and selections. There are further advantages, too, in the savings of analytical and computational time and labor that are gained by using the shortened analysis. Two numerical examples are worked out, one employing a honeycomb with hexagonal cells and the second having square cells. In these two particular examples, the only variation between them being in the cell shape, a superiority of 3.54 to 1 is found for the square-cell plate, where 3.54 is calculated as the ratio of the strength-weight ratios of the two plates. A graphical procedure for the rapid and efficient determination of stress coefficients is also used and described. (Author)

Descriptors :   (*METAL PLATES, HONEYCOMB CORES), BENDING, STAINLESS STEEL, SANDWICH CONSTRUCTION, STRUCTURAL PROPERTIES, GRAPHICS, STRESSES

Subject Categories : Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE