Abstract
This paper presents a set of closed-form solutions for Mode II debonding process of fiber-reinforced polymer-to-substrate bonded joints subjected to combined thermal and mechanical loading. Six different bond-slip models are considered in deriving the closed-form solutions. For each bond-slip model, explicit expressions for the debonding load, effective bond length, interfacial shear stress, interfacial slip as well as the load-displacement response are presented. Provided the bond length is sufficiently long, the debonding load depends only on the interfacial fracture energy and the temperature variation. A temperature increase leads to an increase in both the debonding load and the effective bond length, and the rate of increase of the latter depends on the bond-slip model of the interface. © 2015 Elsevier Ltd.
| Original language | English |
|---|---|
| Pages (from-to) | 241-264 |
| Number of pages | 24 |
| Journal | Engineering Fracture Mechanics |
| Volume | 136 |
| Online published | 11 Feb 2015 |
| DOIs | |
| Publication status | Published - Mar 2015 |
| Externally published | Yes |
Funding
The authors are grateful for the financial support received from the National Basic Research Program of China (i.e. the 973 Program) (Project No.: 2012CB026201 ) and the National Natural Science Foundation of China (NSFC) (Project Nos: 51478406 and 51408521 ). They are also grateful for a Postdoctoral fellowship awarded to the first author by The Hong Kong Polytechnic University.
Research Keywords
- Bond-slip model
- Concrete
- Debonding
- Effective bond length
- Fiber reinforced polymer (FRP)
- Interface
- Steel
- Substrate
- Temperature variation
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