Effect of transient heating of the outer surface of a radial crack-containing ring specimen on its brittle fracture resistance

被引：2

作者：

Stepanov, G. V. ^{[1
]}

Kharchenko, V. V. ^{[1
]}

Kotlyarenko, A. A. ^{[1
]}

Babutskii, A. I. ^{[1
]}

Zhmaka, V. N. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Pisarenko Inst Problems Strength, Kiev, Ukraine

来源：

STRENGTH OF MATERIALS | 2012年 / 44卷 / 04期

关键词：

brittle fracture resistance; transient heating; finite element method; fracture toughness; CLEAVAGE FRACTURE; WARM; CRITERIA;

D O I：

10.1007/s11223-012-9397-y

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Experimental studies on the effect of transient heating of the outer surface of radial crack-containing ring specimens from 45 steel on their fracture toughness are described. Such a treatment contributes to an increase in brittle fracture resistance at low temperature. As numerical simulation results demonstrated, transient heating of the outer specimen surface results in localized plastic flow near the crack tip, leading to strain hardening and its blunting.

引用

页码：429 / 437

页数：9