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Determination of Toughness Variation and Cohesive Zone Parameters for De-bonding of Adhesively Bonded PMMA and Steel Using the Shaft-loaded Blister Test.
- Source :
-
Journal of Adhesion . 2024, Vol. 100 Issue 7, p616-637. 22p. - Publication Year :
- 2024
-
Abstract
- In this work, the shaft-loaded blister test (SLBT) is employed to investigate the de-bonding of a poly-metha-methyl-acrylate (PMMA) layer adhesively bonded to a steel layer. During de-bonding, the mode-mixity does not remain constant in this test; hence, the variation of mode-mixity with the change in de-bond size (blister radius) and the out-of-plane displacement of the PMMA layer is established through Finite Element Analysis (FEA). Experiments are performed in which the load, load-point displacement, and de-bond size is recorded synchronously. Three different thicknesses of PMMA layer are considered in experiments. The variation in toughness as a function of mode-mixity is evaluated. FE simulations with embedded cohesive zone model (CZM) are carried out, and the mixed-mode cohesive zone modelling parameters are identified by comparing the numerical results with experimental observations. By using this approach, the toughness variation as a function of mode-mixity and the CZM parameters is determined using the SLBT. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COHESIVE strength (Mechanics)
*BLISTERS
*FINITE element method
*STEEL
Subjects
Details
- Language :
- English
- ISSN :
- 00218464
- Volume :
- 100
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Adhesion
- Publication Type :
- Academic Journal
- Accession number :
- 176341207
- Full Text :
- https://doi.org/10.1080/00218464.2023.2245335