On the Prediction of R-Curves for Ferroelectroelastic Ceramics
On the Prediction of R-Curves for Ferroelectroelastic Ceramics
复制标题
铁电弹性陶瓷R曲线的预测
DOI:
10.1115/1.4024416
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Ncumcistcr
中科院分区:
文献类型:
--
作者:
Ncumcistcr
In ferroelectroelastic ceramics, the process of fracture is accompanied by significant inelastic deformation due to domain switching. This leads to an apparent toughening of the material, which is known as R-curve behavior. A promising approach to predict R-curves is based on one parameter fracture criteria. The scope of this paper is the examination of the physical validity of these criteria for realistic material behavior. Besides a general discussion of the problem, fracture of the lead zirconate titanate ceramic PIC151 is examined. Thereby, restriction is made to purely mechanical material behavior. The results indicate that the usage of one parameter fracture criteria is questionable. This is due to a conflict between the length scale of the zone wherein the asymptotic crack tip singularity dominates in the field solution of the continuum model and the length scale associated with the fracture process zone. It is concluded that an incorporation of the fracture process into the used fracture mechanics model is necessary to capture transient fracture of ferroelectroelastic ceramics properly.
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影响因子:
2.6
作者:
Jelitto, H.;Felten, F.;Schneider, G. A.
通讯作者:
Schneider, G. A.
影响因子:
3.9
作者:
G. Stam;V. Giessen
通讯作者:
V. Giessen
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
Dayu Zhou
通讯作者:
Dayu Zhou
影响因子:
9.4
作者:
P. Neumeister;M. Jurisch;H. Jelitto;A. Engert;G. Schneider;H. Balke
通讯作者:
P. Neumeister;M. Jurisch;H. Jelitto;A. Engert;G. Schneider;H. Balke
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
A. Semenov;Albrecht C. Liskowsky;H. Balke
通讯作者:
H. Balke