Paper Title:
Research on High Strength Aluminum Alloys Components Stress Analysis by Lock-In Thermography
  Abstract

This paper describes a theoretical and experimental analysis on full-filed stress distribution from thermoelastic measurements and its application to determination of stress concentration. The sum of the principal stress can be measured by Thermal Stress Analysis (TSA). Lock-in Thermography has been applied to measure the sum of principal stress distribution of component structure by its high thermal resolving. In this study, Finite element method is used to calculate the sum of principal stress distribution, and the thermoelastic effect model is developed to study the relationship between the temperature deviation and the applied stress in an elastic material. Experiments were carried out with ANSI 7071 high strength aluminum alloys ply and ones with a crack under cyclic load. The thermoelastic constant is obtained for ANSI 7071 high strength aluminum alloys materials. The stress concentration factor is calculated for a ply with modeling crack under the condition of different loads. The experiment was carried out with high strength aluminum alloys component structure with rivet joints. The experimental results show the stress distribution can be measured and analyzed the contact stress distribution between ply and rivet by using Lock-in thermography. It was found that the structure stress can be evaluated with good accuracies by the lock in thermography.

  Info
Periodical
Edited by
Honghua Tan
Pages
2775-2780
DOI
10.4028/www.scientific.net/AMM.29-32.2775
Citation
X. Liu, J. Y. Liu, J. M. Dai, "Research on High Strength Aluminum Alloys Components Stress Analysis by Lock-In Thermography", Applied Mechanics and Materials, Vols. 29-32, pp. 2775-2780, 2010
Online since
August 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Jae Park, Yoon Suk Chang, Jae Boong Choi, Young Jin Kim
Abstract:Class 1 piping components of a certain old vintage nuclear power plant were designed by ANSI B31.1 code without a detailed fatigue evaluation...
1659
Authors: Young Shin Lee, Je Jun Lee, Youn Ki Kang, Sun Young Song
Abstract:The strain distribution around the unstiffened and stiffened circular cutout of the isotropic stainless steel (ANSI type 304) and the GFRP...
1837
Authors: Alexandru Stefan Leonte, Anișor Nedelcu, Razvan Gabriel Dragan
VII. Means and Methods of Technological Measuring and Control
Abstract:The present paper presents an optimization model for quality control of industrial products by using two non-destructive techniques (NDT):...
615
Authors: Xiong Wan
Chapter 3: Researching and Designing of Machines and Mechanisms for the Manufacturing Equipments
Abstract:Working in the corrosive environment for a long time, it is easy for metal pipes to produce stress corrosion cracks which will affect the...
238