"PHYBAL" a Short-Time Procedure for a Reliable Fatigue Life Calculation

被引：35
|
作者：
Starke, Peter [1 ]
Walther, Frank [1 ]
Eifler, Dietmar [1 ]
机构：
[1] Univ Kaiserslautern, Inst Mat Sci & Engn, D-67653 Kaiserslautern, Germany
来源：
ADVANCED ENGINEERING MATERIALS | 2010年 / 12卷 / 04期
关键词：
CYCLIC DEFORMATION-BEHAVIOR; ELECTRICAL-RESISTANCE; STEELS; STRAIN; TEMPERATURE; LIMIT;
D O I：
10.1002/adem.200900344
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The reliable calculation of the fatigue life of high-strength steels and components requires the systematic investigation of the cyclic deformation behaviour and the comprehensive evaluation of proceeding fatigue damage. Besides mechanical stress-strain hysteresis measurements, temperature and electrical resistance measurements were used for the detailed characterisation of the fatigue behaviour of the steel SAE 4140 in one quenched and tempered,. one normalised, one bainitic and one martensitic condition. To guarantee optimal operation conditions the new fatigue life calculation. method "PHYBAL" on the basis of generalised Morrow and Basquin equations was developed. It is a short-time procedure which requires the data of only three fatigue tests for a rapid and nevertheless precise determination of S-N (Woehler) curves. Consequently, "PHYBAL" provides the opportunity to reduce significantly experimental time and costs compared to conventional test methods.
引用
收藏
页码：276 / 282
页数：7
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