Strain measurements and strength tests of 25-inch diagonal-tension beams with single uprights /

An investigation was made of a series of diagonal-tension beams to determine the accuracy of previously published design charts in predicting the stresses in single uprights. Strain measurements were made of the test beams to obtain the stress distribution in the beams and the ultimate stresses that could be developed in the beams. Failures of the beams occurred in both the uprights and the webs. The measured stresses were generally in agreement with the predicted stresses.Prepared at the Langley Memorial Aeronautical Laboratory, Langley Field, Virginia.Originally issued as NACA as Advance Restricted Report L5J02a (November 1945).NACA Wartime Report L-104.Includes bibliographical references.An investigation was made of a series of diagonal-tension beams to determine the accuracy of previously published design charts in predicting the stresses in single uprights. Strain measurements were made of the test beams to obtain the stress distribution in the beams and the ultimate stresses that could be developed in the beams. Failures of the beams occurred in both the uprights and the webs. The measured stresses were generally in agreement with the predicted stresses.Mode of access: Internet