Composite material stiffened wallboard shear test piece

A technology of reinforced wall panels and composite materials, which is used in the analysis of materials, the use of stable shear force to test the strength of materials, and measurement devices, etc. It is easy to cause problems such as delamination, and achieves the effect of uniform shear stress distribution, preventing additional bending, and avoiding sudden changes.

Active Publication Date: 2020-01-10
中航西飞民用飞机有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the problem existing in the composite material reinforced wall plate shear test piece is that the long stringer is generally cut off naturally from the examination area to the loading connection area, but the disadvantage of the composite material structure is that the structural performance in the longitudinal direction (layer thic

Method used

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  • Composite material stiffened wallboard shear test piece
  • Composite material stiffened wallboard shear test piece
  • Composite material stiffened wallboard shear test piece

Examples

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Example Embodiment

[0014] Referring to the accompanying drawings, the composite material reinforced wall plate shear test piece provided by the application, the body of the test piece is a square composite material reinforced wall plate, and the periphery of the test piece is the loading area 1 for test clamping, and the test piece The center of the center is the test assessment area 2, the test assessment area 2 contains a skin 3 and a plurality of long stringers 4 integrally formed with the skin 3, and the long strings 4 contain a bottom edge 6 attached to the skin 1 And the flange 7 perpendicular to the bottom edge, the four sides of the skin of the examination area protrude and extend respectively to form the matrix layer of the loading area, and a layer of reinforcement is provided on the upper surface of the skin matrix layer of the loading area on both sides parallel to the long stringer Layer 8, the reinforcement layer 8 is equivalent to the thickness of the bottom edge 6 of the stringer ...

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Abstract

The invention discloses a composite material stiffened wallboard shear test piece. The periphery of the test piece is a loading area for test clamping, the center of the test piece is a square test assessment area, the test assessment area is a composite material reinforced wallboard and comprises a skin and a plurality of stringers integrally formed with the skin, each stringer comprises a bottomedge attached to the skin and a flange perpendicular to the bottom edge, four sides of the skin of the test assessment area respectively protrude and extend to form a matrix layer of the loading area, reinforcing layers are arranged on the upper surfaces of the matrix layers of the loading areas at two sides on the two sides parallel to the stringers, on the upper surfaces of the matrix layers ofthe loading areas on the two sides in the direction perpendicular to the stringers, the bottom edges 6 of the stringers 4 and the skin extend together to form the loading areas, another reinforcing frame is connected to the lower surface of the test piece, the reinforcing frame is provided with four reinforcing edges matched with the loading areas, and the four reinforcing edges are connected toform the reinforcing frame.

Description

technical field [0001] The application relates to composite material test technology, and further relates to a shear test piece of a composite material reinforced wall plate. Background technique [0002] Composite material reinforced panel structure is the most commonly used panel structure in aircraft. It is solidified in the form of skin + stringer. To accurately verify the bearing capacity and stability of the structure, it is necessary to make reinforced panel Shear test. At present, there are mature test methods for the shear test of composite reinforced wall panels. Like the shear test of reinforced wall panels with metal structures, it is generally achieved by clamping on four sides and stretching diagonally. However, the problem existing in the composite material reinforced wall plate shear test piece is that the long stringer is generally cut off naturally from the examination area to the loading connection area, but the disadvantage of the composite material struc...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/24
CPCG01N3/02G01N3/24G01N2203/0003G01N2203/0025G01N2203/0252
Inventor 陆鹏鹏金迪王新年乔凌云凡玉
Owner 中航西飞民用飞机有限责任公司
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