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NACA-WR-I-323

NACA-WR-I-323
  • Version
  • 188 Downloads
  • 1.08 MB File Size
  • 1 File Count
  • March 29, 2016 Create Date
  • March 29, 2016 Last Updated
Scroll for Details

National Advisory Committee for Aeronautics, Wartime Report - The Strength and Stiffness of Shear Webs with Round Lightening Holes Having 45° Flanges

naca-wr-l-323 The Strength and Stiffness of Shear Webs with Round Lightening Holes Having 45° Flanges

Tests were made of 18 shear webs with round lighten—
ing holes having 450 flanges. The purpose of the tests was
to extend the range of a previous investigation to larger
ratios of hole diameter to web depth and of web depth to
web thickness. Simple empirical formulas are given for the
streng-th and the stiffness of shear webs: these formulas
incorporate the results of the previous investigation.
Design charts are also giv;n to facilitate the application
of the results.

As part of a general investigation on shear webs, a
number of wet‘s with flanged, round lightening holes had been
tested and an empirical formula 1for the strength of the webs
had been obtained (refer rcnce l).1Although the number of spec-
imens =as fairly large, the range of some of the variables
quite limited in cor peris on with the range that might be
possible in actual construction. In the development of the
strength formula, an attempt was made to compensate for this
inadequacy of the test data by considering limiting cases in
order to find a ferrule that might give reasons ble accuracy
when extrapolated beyond the test_1ang e. In «iew of the
narrow range over vhich the formula was actually verified,
however, it was considered desirable to make at least a small
number of tests of webs having larger ratios of hole diameter
to web depth and of web deo h to web thickness

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naca-wr-l-323 The Strength and Stiffness of Shear Webs with Round Lightening Holes Having 45° Flanges.pdfDownload 

NACA-WR-I-323

NACA-WR-I-323
  • Version
  • 188 Downloads
  • 1.08 MB File Size
  • 1 File Count
  • March 29, 2016 Create Date
  • March 29, 2016 Last Updated
Scroll for Details

National Advisory Committee for Aeronautics, Wartime Report - The Strength and Stiffness of Shear Webs with Round Lightening Holes Having 45° Flanges

naca-wr-l-323 The Strength and Stiffness of Shear Webs with Round Lightening Holes Having 45° Flanges

Tests were made of 18 shear webs with round lighten—
ing holes having 450 flanges. The purpose of the tests was
to extend the range of a previous investigation to larger
ratios of hole diameter to web depth and of web depth to
web thickness. Simple empirical formulas are given for the
streng-th and the stiffness of shear webs: these formulas
incorporate the results of the previous investigation.
Design charts are also giv;n to facilitate the application
of the results.

As part of a general investigation on shear webs, a
number of wet‘s with flanged, round lightening holes had been
tested and an empirical formula 1for the strength of the webs
had been obtained (refer rcnce l).1Although the number of spec-
imens =as fairly large, the range of some of the variables
quite limited in cor peris on with the range that might be
possible in actual construction. In the development of the
strength formula, an attempt was made to compensate for this
inadequacy of the test data by considering limiting cases in
order to find a ferrule that might give reasons ble accuracy
when extrapolated beyond the test_1ang e. In «iew of the
narrow range over vhich the formula was actually verified,
however, it was considered desirable to make at least a small
number of tests of webs having larger ratios of hole diameter
to web depth and of web deo h to web thickness

FileAction
naca-wr-l-323 The Strength and Stiffness of Shear Webs with Round Lightening Holes Having 45° Flanges.pdfDownload 
17,003 Documents in our Technical Library
1387901 Total Downloads

Search The Technical Library

Newest Additions

ADPO10769 Occurrence of Corrosion in Airframes
The purpose of this lecture is to provide an overview ...
MIL-STD-1759 Rivets and Rivet Type Fasteners Preferred for Design
The purpose of this book form standard is to provide ...
MIL-STD-810G Environmental Engineering Considerations and Laboratory Tests
This standard contains materiel acquisition program planning and engineering direction ...
MIL-R-7885D General Specification for Rivets, Blind, Structural, Mechanically Locked Spindle and Friction Locked Spindle
This specification covers mechanically locked spindle and  friction locked spindle ...
MIL-HDBK-132A Protective Finishes for Metal and Wood Surfaces
The primary object of this handbook is to provide a ...