Systematic Analysis of the Data Base on Fatigue Strength of Metallic Materials and Compilation of Fatigue Design Reliability Hand Book

点击翻译按钮获取中文摘要

The main theme of this study was to analyze a huge volume of data filed in the data base on fatigue strength of metallic materials, and to compile a book titled Fatigue Design Reliability Hand Book. Continuing from the previous year, the analysis of the data was intensively performed also in this year by the research group members, and the compilation of the hand book with the following five chapters was completed:Chapter 1 Contents of the data base and procedure of analysisChapter 2 Analysis of the data on static strengths of materialsChapter 3 Statistical properties of fatigue strengths of individual materialsChapter 4 Effects of important factors on fatigue strengths of materialsChapter 5 Reliability analysis of fatigue strengths of materialsIn chapter 1, the content of the data base, its error check and the construction of the secondary data base were explained as preliminary works, and stand points of the data analysis were clarified. In chapter 2, the data on the static strengths of materials were retrieved from the data base, and their statistical properties were analyzed. In chapter 3, the basic fatigue strength characters of materials obtained under standardized test conditions were analyzed and plotted on P-S-N diagrams for respective specifications of materials. In chapter 4, the correlation of fatigue strength parameters with static strengths were examined, and the effects of mean stress, types of stress, notches, surface treatment and temperature on fatigue strengths of materials were intensively analyzed and summarized. In chapter 5, distribution characteristics of fatigue lives indfinite life range and of fatigue limits were analyzed, and recommendations to reliability design application were summarized.The hand book with the above content will be issued in the near future.