Method for estimating shear strength of reinforced wallboard

A technology of reinforced wall panel and shear strength, which is applied in calculation, computer-aided design, special data processing application, etc., can solve the problems of complex calculation process, inapplicability, poor accuracy of calculation results, etc., and achieve accurate and universal calculation results. The effect of good sex and high flexibility

Active Publication Date: 2019-10-22
CHINA AIRPLANT STRENGTH RES INST
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Problems solved by technology

[0003] At present, the shear strength calculation of reinforced wall panels in engineering mainly adopts semi-empirical methods, and the calculation is only to find charts from some design manuals, and these charts are only for specific structures and specific materials (such as 2024-T3 and 7075 -T6), there are disadvantages such as complicated calculation process and poor accuracy of calculation results, and it is not suitable for calculating the reinforced wall plate structure processed by new materials (such as 2524-T3, Al-Li-S4, etc.)

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  • Method for estimating shear strength of reinforced wallboard
  • Method for estimating shear strength of reinforced wallboard
  • Method for estimating shear strength of reinforced wallboard

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[0028] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

The invention belongs to the technical field of aviation structure strength analysis, and particularly relates to a method for estimating the shear strength of an reinforced wallboard, which comprisesthe following steps: acquiring shear buckling critical stress of a reinforced wallboard skin; calculating according to the shear buckling critical stress to obtain shear allowable stress of the skin;and carrying out calculating according to the shearing allowable stress to obtain the shearing strength of the reinforced wallboard. The method for estimating the shear strength of the reinforced wallboard is clear in calculation step, simple and convenient in calculation process and accurate in calculation result; the method overcomes the defects of an existing method, is suitable for reinforcedwall plates made of different materials and of different structures, can calculate the shear strength of structures such as riveting, screw joint, welding and integral reinforced wall plates, is goodin universality and high in flexibility, and reduces the structural weight on the premise that the shear strength of the reinforced wall plates is guaranteed.

Description

technical field [0001] The application belongs to the technical field of strength analysis of aeronautical structures, and in particular relates to a method for estimating the shear strength of a reinforced wall plate. Background technique [0002] Stiffened panels are thin-walled structures composed of skins, stringers and bulkheads, and have been widely used in structures such as fuselages, wing boxes and empennages. The load situation of the reinforced panel is relatively complicated, and it is the main damaged part in the aircraft structure. The failure modes of the reinforced panel include tensile failure, compression failure, shear failure and tension-compression-shear composite failure. The shear stability of reinforced panels has always been a concern. [0003] At present, the shear strength calculation of reinforced wall panels in engineering mainly adopts semi-empirical methods, and the calculation is only to find charts from some design manuals, and these charts ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23G06F2119/06Y02T90/00
Inventor 陈安臧伟锋陈先民
Owner CHINA AIRPLANT STRENGTH RES INST
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