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NACA-TR-739
Shear Lag in Box Beams Methods of Analysis and Experimental Investigations
Year: 1942
Abstract: The bending stresses in the covers of box beams or wide-flange beams differ appreciably from the stresses predicted by the ordinary bending theory on account of shear deformation of the flanges. The problem of predicting these differences has become known as the shear-lag problem. The first part of this paper deals with methods of shear-lag analysis suitable for practical use. The second part of the paper describes strain-gage tests made by the NACA to verify the theory. Three tests published by other investigators are also analyzed by the proposed method. The third part of the paper gives numerical examples illustrating the methods of analysis. An appendix gives comparisons with other methods, particularly with the method of Ebner and Koller.
Subject: BENDING
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:15:19Z | |
| date available | 2017-09-04T15:15:19Z | |
| date copyright | 01/01/1942 | |
| date issued | 1942 | |
| identifier other | MFYHUEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/14273 | |
| description abstract | The bending stresses in the covers of box beams or wide-flange beams differ appreciably from the stresses predicted by the ordinary bending theory on account of shear deformation of the flanges. The problem of predicting these differences has become known as the shear-lag problem. The first part of this paper deals with methods of shear-lag analysis suitable for practical use. The second part of the paper describes strain-gage tests made by the NACA to verify the theory. Three tests published by other investigators are also analyzed by the proposed method. The third part of the paper gives numerical examples illustrating the methods of analysis. An appendix gives comparisons with other methods, particularly with the method of Ebner and Koller. | |
| language | English | |
| title | NACA-TR-739 | num |
| title | Shear Lag in Box Beams Methods of Analysis and Experimental Investigations | en |
| type | standard | |
| page | 44 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1942 | |
| contenttype | fulltext | |
| subject keywords | BENDING | |
| subject keywords | BOX BEAMS | |
| subject keywords | COMPARISON | |
| subject keywords | EXPERIMENTATION | |
| subject keywords | FLANGES | |
| subject keywords | NUMERICAL ANALYSIS | |
| subject keywords | OPENINGS | |
| subject keywords | PREDICTION ANALYSIS TECHNIQUES | |
| subject keywords | RIBS (SUPPORTS) | |
| subject keywords | SHEAR STRESS | |
| subject keywords | STRESS ANALYSIS | |
| subject keywords | STRESSED-SKIN STRUCTURES | |
| subject keywords | STRINGERS | |
| subject keywords | THEORIES |