Effect of environmental conditioning on pure mode I fracture behaviour of adhesively bonded joints

被引：21
|
作者：
Abdel-Monsef, S. [1 ,2 ]
Renart, J. [1 ,4 ]
Carreras, L. [3 ]
Maimi, P. [1 ]
Turon, A. [1 ]
机构：
[1] Univ Girona, Polytech Sch, AMADE, Campus Montilivi S-N, Girona 17003, Spain
[2] Zagazig Univ, Fac Engn, Struct Engn Dept, POB 44519, Zagazig, Sharkia, Egypt
[3] Aalborg Univ, Dept Mat & Prod, Fibigerstr 16, DK-9220 Aalborg, Denmark
[4] Generalitat Catalunya, Barcelona, Spain
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2020年 / 110卷
关键词：
DCB; Fracture; Bonded joints; Environmental effects; Ageing; ELASTIC-FOUNDATION; SHEAR-STRENGTH; TEMPERATURE; BEAM; DELAMINATION; MOISTURE; TOUGHNESS; ENERGIES;
D O I：
10.1016/j.tafmec.2020.102826
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The influence of different harsh environmental conditions on the fracture behaviour of secondary bonded adhesive joints is experimentally investigated using mode I DCB tests. Two types of adhesively bonded joints under wet-aged and non-aged conditions were tested at three temperatures: -55 degrees C, room temperature and 80 degrees C. The wet-aged specimens were exposed to accelerated ageing in an environmental chamber at 70 degrees C/85% RH for four years; meanwhile, the non-aged specimens were stored in the laboratory under controlled conditions at room temperature. It was observed that extremely long ageing time has a significant effect on the fracture response of the bonded joint, while the temperature increase is holding a slight impact. Freezing temperature leads to more brittle behaviour and a reduction in the fracture toughness.
引用
收藏
页数：11
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