Title

Refinement of Sonic Fatigue Structural Design Criteria

Date

1968

Index Abstract

Not Available

Photo Quality

Undetermined

Report Number

AFFDL TR 67-156

Creator

Ballentine, John R.

Rudder, Fred F.

Mathis, James T.

Plumblee, Harry E.

Corporate Author

Lockheed-Georgia Company

Laboratory

Air Force Flight Dynamics Laboratory

Extent

254

Identifier

AD0831118

Access Rights

Export Controls

Distribution Classification

1

Contract

AF 33(615)-3816

DoD Project

1471

DoD Task

147101

DTIC Record Exists

Yes

Distribution Change Authority Correspondence

AFFDL LTR

Distribution Change Action Date

5/14/2005

Distribution Conflict

No

Abstract

Accurate nomographs for designing conventional skin-stringer and honeycomb sandwich construction to meet sonic fatigue requirements are presented. The nomographs were derived from the results of sonic fatigue tests of 30 skin-stringer and 30 honeycomb sandwich designs, totaling 60 test specimens for each design. Emphasis is also placed on assessing the effect of structural curvature on sonic fatigue and structural response. Nomographs for determining the curvature effects are included.

Report Availability

Not available via Contrails

Date Issued

1968-01

Index In

DTIC

Type

report