Analysis of causes degradation of materials of discrete devices of computer systems

Abstract

Definition of reliability was given and classification of failures of discrete devices was performed in the paper. Long life cycle of computer systems should be provided by both functional, software components and physical hardware. One of the conditions of physical hardware is reliability of discrete devices of computer systems.

The analysis of the physics of failures was carried out. The concentration of substances, penetrating into the material and the level of energy effects depend on the quality of the element protection against external and internal operating factors. An increase in the intensity of their influence on the element increases the rate of physical and chemical processes, resulting in reversible and irreversible changes in materials. The physical nature of failures is based on the practical problems of determining reliability of discrete devices. Herewith, it is necessary to consider the causes of failures and construction of correct mathematical models.

For the analysis of the reliability of information computer systems, mathematical models on the reliability theory were developed. We have developed and described a composite material model, reflecting the behavior of discrete material taking into account completed physical processes in the material. In the analysis of metal-nonmetal, metal-metal systems, there is a special area - a thin layer that has physicochemical properties, different from that of the main components. This layer is responsible for the contact strength and is the link between phases. The numerical implementation of these tasks was carried out according to the developed algorithm using the existing mathematical software with some additions.