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Stiffener with Alternate Flange Arrangement

IP.com Disclosure Number: IPCOM000239741D
Publication Date: 2014-Nov-28
Document File: 3 page(s) / 30K

Publishing Venue

The IP.com Prior Art Database

Abstract

This technical disclosure proposes a new stiffener design for joining of two metallic sheets or components for structural integrity using adhesive. Adhesive joining is becoming increasingly attractive due to their superior aesthetics needed for the body panels as well as elimination of weld distortion issues for metallic structures. The proposed stiffener design has alternate flanges, instead of continuous flanges traditionally used. This provides adequate strength along with significant reduction in quantity of adhesives. The proposed design of stiffener can have several variants, in terms of number of flanges and their shapes, which can be optimized for a given application. This concept enables around 50% reduction in the quantity of adhesive quantity as against conventional L or T shaped flanges. In addition, the new joint provides adequate structural strength.

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Page 01 of 3

Title: Stiffener with Alternate Flange Arrangement

Abstract:

This technical disclosure proposes a new stiffener design for joining of two metallic sheets or components for structural integrity using adhesive. Adhesive joining is becoming increasingly attractive due to their superior aesthetics needed for the body panels as well as elimination of weld distortion issues for metallic structures. The proposed stiffener design has alternate flanges, instead of continuous flanges traditionally used. This provides adequate strength along with significant reduction in quantity of adhesives. The proposed design of stiffener can have several variants, in terms of number of flanges and their shapes, which can be optimized for a given application. This concept enables around 50% reduction in the quantity of adhesive quantity as against conventional L or T shaped flanges. In addition, the new joint provides adequate structural strength.

Drawing:

Figure 1:

Alternate flange arrangement

Adhesive to be applied to

flanges



Page 02 of 3

Component

Alternate flange of stiffener

Description:

The proposed stiffener with alternate flange in accordance with this technical disclosure provides for several advantages over traditional stiffeners with L-flange or T-flange when used to join two components or sheets using adhesive. L-flanges have poor peel load strength whereas T-flange requires double the adhesives as compared to the L-flange.

The proposed design has "alternate flanges" on the two sides, thereby, providing an intermediate solution to the T and L flange, with an inherent advantage of higher peel strength as compared to L-flange and lower flange weight and lower adhesives requirement as compared to the T-flange. The proposed "alternate flange" joint also provides ease of assembly, good stability and flexibility of adhesive application. Considering the high cost of structural adhesive, the proposed solution of...