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Fatigue life reliability evaluation in a high-speed train bogie frame using accelerated life and numerical test

Reliability Engineering & System Safety, 2019
Durability fatigue tests for full-scale structures are essential to ensure the fatigue reliability and operational safety of high-speed trains. An accelerated life test (ALT) method is first used to predict the fatigue life of a full-scale bogie frame ...
Yaohui Lu   +4 more
semanticscholar   +1 more source

Investigation on microstructure evolution and failure mechanism of boron doped diamond coated titanium electrode during accelerated life test

Thin Solid Films, 2018
For a long time, due to a lack of understanding on microstructure evolution of boron doped diamond (BDD) electrodes in application, there have been controversies on failure mechanism of the electrodes material.
Xinru Lu, M. Ding, Cong Zhang, W. Tang
semanticscholar   +1 more source

An accelerated life test model for solid lubricated bearings used in space based on time-varying dependence analysis of different failure modes

Acta Astronautica, 2018
Solid lubricated bearings are crucial mechanical components of spacecraft, and their failures are risky to the integrity of the spacecraft. To assess the reliability measures of solid lubricated bearings, accelerated life tests (ALT) have to be conducted.
Chao Zhang   +4 more
semanticscholar   +1 more source

The copula-based method for statistical analysis of step-stress accelerated life test with dependent competing failure modes

Proceedings of the Institution of Mechanical Engineers. Part O, Journal of risk and reliability, 2018
Competing risk usually exists in engineering applications; thus, the study of the statistical inference of accelerated life testing with competing failure modes is of great significance.
Yicheng Zhou   +3 more
semanticscholar   +1 more source

A Technique for Accelerated Life Testing

Journal of Engineering for Industry, 1970
If it is assumed that test specimens fail as soon as the damage accumulated in them reaches some definite amount, then a simple accelerated testing technique can be devised. Some specimens are failed under uniform accelerated conditions, while others are foiled partly under normal conditions and partly under accelerated conditions, and a graphical ...
B. Shiralkar   +2 more
openaire   +1 more source

PLANNING FOR ACCELERATED LIFE TESTS

International Journal of Reliability, Quality and Safety Engineering, 1999
We present two alternative perspectives to the current way of planning for constant-stress accelerated life tests (CSALTs) and step-stress ALT (SSALT). In 3-stress CSALT, we consider test plans that not only optimize the stress levels but also optimize the sample allocation.
openaire   +1 more source

Testing of Hypotheses for Distributions in Accelerated Life Tests

Journal of the American Statistical Association, 1982
Abstract In this paper we consider the problem of inference from accelerated life tests in which a common parametric family of life distributions at the different stress levels is not specified in advance. By assuming a time transformation function, which is a version of the familiar inverse power law, we give a procedure for testing hypotheses that ...
J. Sethuraman, Nozer D. Singpurwalla
openaire   +1 more source

Accelerated life tests for products of unequal size

IEEE Transactions on Reliability, 1996
This paper considers 'estimation of the lifetime distribution' and 'optimal design of constant-stress accelerated life test plans' for products of unequal size. The distribution is Weibull with a scale parameter that is a 'log-linear function of stress' and a 'power function of product size with a size-effect parameter'.
Do Sun Bai, Hyung Je Yun
openaire   +1 more source

On the Life Prediction and Accelerated Testing of Solder Joints

Thermo-Mechanical Characterization of Evolving Packaging Materials and Structures, 1998
Abstract A critical review of the life prediction and accelerated testing of solder joints, including the role of constitutive modeling and the factors of accelerated testing, is presented in this paper. As a perfect example, Ford solder joint specimen was used to investigate accelerated testing factors under various accelerated testing ...
Z. Qian, S. Liu
openaire   +1 more source

Challenges in accelerated life testing

The Ninth Intersociety Conference on Thermal and Thermomechanical Phenomena In Electronic Systems (IEEE Cat. No.04CH37543), 2004
Accelerated testing typically targets-life estimation and defect or design weakness identification. The intent is to obtain more information from a given test time than would normally be possible. Time compression is typically achieved by acceleration of single or combination of stresses- temperature, vibration, humidity, etc. Short product development
openaire   +1 more source

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