Abstract
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 °C, room temperature and 80 °C. The wet-aged specimens were exposed to accelerated ageing in an environmental chamber at 70 °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.
| Original language | English |
|---|---|
| Article number | 102826 |
| Journal | Theoretical and Applied Fracture Mechanics |
| Volume | 110 |
| ISSN | 0167-8442 |
| DOIs | |
| Publication status | Published - Dec 2020 |
Bibliographical note
Funding Information:The first author would like to acknowledge the support of the Catalan Government (Agència de Gestió d’Ajuts Universitaris i de Recerca), under the Grant 2017 FI_B 00100. This work has been partially funded by the Spanish Government (Ministerio de Economia y Competitividad) under contracts RTI2018-099373-B-I00 and RTI2018-097880-B-I00.
Publisher Copyright:
© 2020 Elsevier Ltd
Keywords
- Ageing
- Bonded joints
- DCB
- Environmental effects
- Fracture