Structural members with large unidirectional rigidities

US5922446A · kind A · utility

Assignee

• DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V. · DE

Inventors

• Matthias Piening · Braunschweig, DE
• Arno Pabsch · Braunschweig, DE
• Christof Sigle · Braunschweig, DE

Key dates

• Filing date: Jul 15, 1998
• Grant date: Jul 13, 1999
• Expiry date: Jul 15, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/249924
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a structural member with large unidirectional rigidities unidirectional fiber bundles are completely embedded in shear resistant sheaths. The shear resistant sheaths are joined to a shear resistant torsion shell made up of skin layers by shear resistant vertical walls. A part of the vertical walls is shaped into stringers. Dividing layers (20) interrupting the passage of tension between adjacent unidirectional fiber bundles (30) are provided between the shear resistant sheaths (31) of the unidirectional fiber bundles (30).