Assessment of UMTS and averaged SED fracture criteria for U-notched specimens

被引：0
|
作者：
Filipescu, Hannelore [1 ]
Caplescu, Cristiana [1 ]
Pasca, Niculai [1 ]
机构：
[1] Politehn Univ Timisoara, Timisoara 300006, Romania
来源：
ADVANCES IN FRACTURE AND DAMAGE MECHANICS XII | 2014年 / 577-578卷
关键词：
notch fracture; UMTS and averaged SED criteria; polyurethane; STRAIN-ENERGY; FAILURE;
D O I：
10.4028/www.scientific.net/KEM.577-578.113
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A set of mixed-mode I/II fracture tests was carried out on a polyurethane material. Using a single edge notched bend (SENB) type specimen, containing straight and respectively inclined U notches, the full range from pure mode I to dominant mode II was achieved. Two different fracture criteria were employed for the prediction of the fracture conditions: the UMTS criterion and the averaged SED criterion. Using these two criteria a set of curves were derived in terms of the fracture load vs. notch radius. The agreement between the experimental results and those predicted based on these two criteria is discussed finally.
引用
收藏
页码：113 / 116
页数：4
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