Research on Quantitative Evaluation Technology of Highly Accelerated Life Test

Abstract

The purpose of highly accelerated life test (HALT) is mainly to stimulate the potential defects of products, Therefore, at present, HALT can't quantitatively obtain the reliability index of the product. In this paper, because of the current situation of insufficient utilization of enhanced test data, the methods of data extrapolation and reliability evaluation based on accelerated model are studied. Firstly, the HALT data is extrapolated into failure data under normal stress environment by using the acceleration model, and the extrapolated HALT data are regarded as a set of reliability growth test data. Then, the reliability of the product is evaluated by the reliability growth test evaluation method, thereby realizing the reliability evaluation based on the HALT data.