Textural fractography of fatigue failures under variable cycle loading

被引：2

作者：

Lauschmann, H ^{[1
]}

Siska, F ^{[1
]}

Nedbal, I ^{[1
]}

机构：

[1] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Mat, Prague 12000 2, Czech Republic

来源：

MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE IV | 2005年 / 482卷

关键词：

fatigue; variable cycle loading; fractography; reconstitution of crack growth;

D O I：

10.4028/www.scientific.net/MSF.482.259

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new concept of counting time at fatigue processes is proposed, aimed to reach fractographic compatibility in cases of different loading sequences. Values of cycle effectivity are summarized to give the new reference time. The improvement is shown in application - textural fractography of three specimens loaded by constant cycle, constant cycle with periodic overloading, and a random block, respectively. In contrast to the conventional crack growth rate, the reference crack growth rate is related to common morphologic features of all fracture surfaces.

引用

页码：259 / 262

页数：4