ANALYSIS OF THE INFLUENCE OF STIFFENER TYPE AND MANUFACTURING PROCESS ON MECHANICAL BEHAVIOR OF TITANIUM ALLOY STIFFENED PANEL UNDER AXIAL COMPRESSION

WANG ZhaoHui; MA YuE

doi:10.16579/j.issn.1001.9669.2022.01.020

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ANALYSIS OF THE INFLUENCE OF STIFFENER TYPE AND MANUFACTURING PROCESS ON MECHANICAL BEHAVIOR OF TITANIUM ALLOY STIFFENED PANEL UNDER AXIAL COMPRESSION

更新时间：2022-09-22

- ANALYSIS OF THE INFLUENCE OF STIFFENER TYPE AND MANUFACTURING PROCESS ON MECHANICAL BEHAVIOR OF TITANIUM ALLOY STIFFENED PANEL UNDER AXIAL COMPRESSION
- Journal of Mechanical Strength Vol. 44, Issue 1, Pages: 148-154(2022)
- 作者机构：
  
  1. 西北工业大学航空学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.01.020
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WANG ZhaoHui, MA YuE. ANALYSIS OF THE INFLUENCE OF STIFFENER TYPE AND MANUFACTURING PROCESS ON MECHANICAL BEHAVIOR OF TITANIUM ALLOY STIFFENED PANEL UNDER AXIAL COMPRESSION. [J]. 44(1):148-154(2022)
DOI：

WANG ZhaoHui, MA YuE. ANALYSIS OF THE INFLUENCE OF STIFFENER TYPE AND MANUFACTURING PROCESS ON MECHANICAL BEHAVIOR OF TITANIUM ALLOY STIFFENED PANEL UNDER AXIAL COMPRESSION. [J]. 44(1):148-154(2022) DOI： 10.16579/j.issn.1001.9669.2022.01.020.

摘要

加筋壁板是航空结构中常用结构形式,不同筋条形式和不同制造工艺会影响其力学行为及其失效模式。针对钛合金加筋板,采用有限元方法建立数值计算模型,研究了T型、L型和Z型3种不同截面形式筋条对加筋板的屈曲模态和破坏形式的影响机制,分析了焊接、点焊和铆接不同制造工艺对加筋板的屈曲载荷和后屈曲特性的影响。结果表明:T型加筋板的屈曲载荷和破坏载荷均为最大;不同制造工艺对破坏载荷和后屈曲承载能力的影响较大,其中焊接加筋板后屈曲承载能力最大;然后给出600 mm×600 mm加筋板结构效能最大的加筋方式。

Abstract

Stiffened plates is a common structural form in aviation structure. Different types of stiffened plates and different manufacturing processes will affect its mechanical behavior and failure mode. The finite element method is used to establish numerical models of titanium alloy stiffened plates, and to study the effects of the T, L and Z type stiffened plates on buckling mode and failure. The influence of manufacturing processes such as welded, spot welded, riveted and integral panels on buckling and post buckling properties are analyzed. It is shown that the buckling load and the failure load of the T-type stiffened plate are the maximum one. Different manufacturing processes have great influence on the failure load and post-buckling load capacity, among which the post-buckling load capacity of welded stiffened plate is the largest one. At the same time, the most effective stiffening method of 600 mm×600 mm stiffened plate structure is given.

关键词

加筋板有限元轴压载荷屈曲后屈曲

Keywords

Stiffened platesFinite element methodAxial compression loadBucklingPost-buckling

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