A toughness test device with opposite roller loading

被引：6

作者：

Fett, T ^{[1
]}

Munz, D ^{[1
]}

Thun, G ^{[1
]}

机构：

[1] Forschungszentrum Karlsruhe GmbH, Inst Mat Forsch 2, D-76021 Karlsruhe, Germany

来源：

ENGINEERING FRACTURE MECHANICS | 2001年 / 68卷 / 01期

关键词：

fracture toughness; R-curve; roller loading devices; stress intensity factors;

D O I：

10.1016/S0013-7944(00)00085-0

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Bars loaded by opposite concentrated forces via rollers are appropriate test specimens for the determination of the fracture toughness K-lc, and the crack resistance curve (R-curve). In this paper, stress solutions fur the proposed specimens are provided. For the fracture mechanics specimens containing edge cracks, stress intensity factor solutions are given in form of figures and tables. As practical applications, R-curves are determined for an unpoled soft lead zirconate titanate (PZT) ceramic and an alumina with 4% glass content. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：29 / 38

页数：10