Title:
OUTER PANEL FOR COMPOSITE WING/STRINGER DESIGN
Document Type and Number:
Japanese Patent JP2022020616
Kind Code:
A
Abstract:
To provide an outer panel/stringer structure with reduced vulnerability to sea surface cracking.SOLUTION: Each of an outer panel and a stringer is provided by arranging a ply direction (i.e. an angle of a fiber path of the ply) during lay-up in such a way that relative opening (failure mode I) and/or in-plane shear (failure mode II) and/or out-of-plane shear (failure mode III) is reduced with respect to a main load at an outer plate/stringer interface. This is possible when a coupling of multiple concrete deformation modes is deliberately encouraged rather than suppressed. The ply direction of the stringer is adjusted so that the stringer deforms in a controlled manner to suppress or "close" a crack that is about to form as load is applied, before an undesirable failure mode is formed.SELECTED DRAWING: None
Inventors:
VLADIMIR BALABANOV
OLAF WECKNER
WU YUAN-JYE
ABDELHAI MAYSARA SAADI
MOSTAFA RASSAIAN
OLAF WECKNER
WU YUAN-JYE
ABDELHAI MAYSARA SAADI
MOSTAFA RASSAIAN
Application Number:
JP2021149193A
Publication Date:
February 01, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
BOEING CO
International Classes:
B29C70/10; B29C70/30; B64C1/00; B64C1/06; G01N3/00; G06F30/15; G06F30/23
Domestic Patent References:
| JP2014151648A | 2014-08-25 | |||
| JP2013527812A | 2013-07-04 | |||
| JP2014519997A | 2014-08-21 |
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation
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