Accession Number : ADP005995

Title :   Comparison of Experimental Results and Analytically Predicted Data for Double Shear Fastened Joints,

Corporate Author : MESSERSCHMITT-BOELKOW-BLOHM G M B H MUNICH (GERMANY F R) HELICOPTER DIV

Personal Author(s) : Bauer, J. ; Mennle, E.

Report Date : MAR 1988

Pagination or Media Count : 8

Abstract : Experimental tests were carried out to investigate the strength of open holes and pin loaded holes, as well as the combination of both. The material used was 914C/T300. The tests delivered enough information to represent the basis for the development of an analytic prediction method. The prediction method is based on a linear analysis, which provides the stress field around a hole loaded with any type of loading. To make use of this information, in order to predict the strength, some empirical influence has to be taken into account to produce good correlation between experimental and theoretical data. The obtained accuracy is shown, as well as diagrams representing theoretically derived notch sensitivity and the double shear pin pearing strength. In aircraft structures the areas of local load introduction into CFRP parts require careful treatment during the design phase. To do good stressing and sizing of the load transferring parts special experience with composite materials is necessary. (SDW)

Descriptors :   *SHEAR STRESSES, *JOINTS, ACCURACY, AIRCRAFT, AIRFRAMES, COMPARISON, COMPOSITE MATERIALS, EXPERIMENTAL DATA, EXPERIMENTAL DESIGN, HOLES(OPENINGS), LINEAR SYSTEMS, MATHEMATICAL ANALYSIS, MATHEMATICAL PREDICTION, NOTCH SENSITIVITY, PINS, PREDICTIONS, SHEAR PINS, SHEAR PROPERTIES, STRENGTH(MECHANICS), TEST METHODS.

Subject Categories : Couplers, Fasteners, and Joints
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE