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About 10,000 papers for “accelerated testing”

Accelerated Testing

Wayne Nelson · Wiley series in probability and statistics · 1990

Cited by 1,383

ACCELERATED TESTING TECHNOLOGY

William Yurkowsky, Ray E. Schafer, J. M. Finkelstein · Defense Technical Information Center (DTIC) · 1967

The report, in two volumes, is devoted to an investigation into the state-of-the-art of methods for reducing the time and expense associated with life testing, particularly as it relates to parts. The areas investigated are divided into accelerated testing and more powerful statistics. The accelerated tests treated in the report are tests at stresses higher than nominal design levels applied either singly or in combinations at constant, progressively increasing, or increasing by steps, stress levels. The more powerful statistical approaches found to be pertinent are those using prior information distribution- dependent methods and distribution-free methods. Volume one, prepared in handbook format, gives an assessment of advantages and limitations of the present available methods for reducing test time and expenses and presents in compact, but complete form, the instructions for using the methods which represent the state-of-the-art of accelerated life testing. Volume two presents the methodology used in performing the study, explains the evaluation systems used on the methods reported in the literature, establishes the criteria for inclusion of a method in Volume one, and highlights to useful methods developed as well as those which show promise for future development.

Cited by 33

Accelerated Fatigue Testing

A Carse, B. Crossland · SAE technical papers on CD-ROM/SAE technical paper series · 1972

<div class="htmlview paragraph">The people reports data on block program fatigue testing of a simple cantilever specimen with a stress concentration, the specimen being made of SAE 1530 steel. The various programs investigated were based on a normal distribution with a crest factor of 4 and were aimed at accelerating fatigue testing.</div> <div class="htmlview paragraph">From tests on programs with 4,8, and 16 stress levels, it was concluded that at least 8 stress loads were required to stimulate accurately the normal distribution. Tests in which various stress levels were omitted showed that stress levels S/σ< 1.75 contributed nothing to fatigue damage, and consequently they could be omitted from the program, resulting in a saving of 87% in testing time. Stress level in range 1.75 S/σ<=4 had a damaging effect, and even the one of S/σ=4 in each full program of 4000 cycles caused significant damage. This indicates the great importance of the choice of crest factor.</div>

Cited by 5

Accelerated Testing Validation

Rangachary Mukundan, Rodney L. Borup, John Davey et al. · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2014

Abstract Not Provided

Cited by 3Open access

Accelerated Corrosion Testing

M. Khobaib · Defense Technical Information Center (DTIC) · 1982

Available methods for accelerated testing of corrosion behavior yield results which are not sufficiently accurate or reliable for predicting the service life of aircraft components and materials which degrade or fail due to environmental attack. Research has been conducted in controlled atmospheres on the localized environmental enhancement of crack-growth rates of aerospace alloys in order to provide the basis for development of realistic accelerated corrosion tests. Slow-strain-rate, corrosion-fatigue, and rising-load experiments have been conducted on high-strength 4340 steel and 7075-T6 aluminum alloy using accelerating pollutants such as sulfur dioxide, nitrogen dioxide, surface salt, and ambient to 100%-relative-humidity (RH) air in a specially designed atmospheric chamber. (Author)

Cited by 0

ACCELERATED ENVIRONMENTAL TESTING

William Raymond Tooke, D R Hurst · 1973

This report provides a description of the design and operation of an accelerated corrosion environmental chamber for metal protective paints and a discussion of the findings of experiments designed to test the reproducibility of results in the chamber and limited available direct correlations with data from an exterior weathering test fence at a tidal estuary in Brunswick, Georgia. The major conclusions reached were that the environmental chamber exhibits high precision of test results within runs and an exceptionally close similitude in a greatly accelerated test to the modes of panel failure observed in the field. The prospects for close lab-field correlation appeared very good, but, for general use, such correlation was seen to require control system techniques which have been proposed but not yet validated with comprehensive experimental studies.

Cited by 3

Accelerated Testing: A Practitioner's Guide to Accelerated And Reliability Testing

Bryan Dodson, Harry Schwab · Medical Entomology and Zoology · 2003

The application of accelerated testing theory is a difficult proposition, yet one that can result in considerable time and cost savings, as well as increasing a product's useful life. In Accelerated Testing: A Practitioner's Guide to Accelerated and Reliability Testing, readers are exposed to the latest, most practical knowledge available in this dynamic and important discipline. Authors Bryan Dodson and Harry Schwab draw on their considerable experience in the field to present comprehensive, insightful views in this book. Development and quality assurance tests are defined in detail and are presented from a practical viewpoint. Included are testing fundamentals, plans and models, and equipment and methods most commonly used in accelerated testing. Individuals seeking to evaluate and improve the design lives of components and systems will find this book a valuable reference, with special attention being paid to testing in the mobility industries.

Cited by 0