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1.	Biel, Anders, 1977-, et al. (author) Experimental evaluation of normal and shear delamination in cellulose-based materials using a cohesive zone model 2022 In: International Journal of Solids and Structures. - : Elsevier. - 0020-7683 .- 1879-2146. ; 252 Journal article (peer-reviewed)abstract An experimental study to characterize properties controlling delamination of paperboard is presented. The normal and shear traction-separation laws are measured and evaluated using a double cantilever beam (DCB) and a split double cantilever beam (SCB) specimen. The DCB-experiments provides normal separation data in good agreement with results using alternative experimental techniques. From the measured data, both normal and shear fracture resistance data are obtained. A length parameter is introduced. The length parameter allows for the cohesive law to be obtained from a dimensionless master curve which is valid both for normal and shear loading. Taking advantage of the master curve, a mixed-mode potential is proposed. The mixed-mode potential is implemented as a user interface to a finite element code. As a final test, the experimental setups of the DCB and SCB specimens are simulated to validate the identified normal and shear properties.

Biel, Anders, 1977-, et al. (author)
Experimental evaluation of normal and shear delamination in cellulose-based materials using a cohesive zone model
2022
In: International Journal of Solids and Structures. - : Elsevier. - 0020-7683 .- 1879-2146. ; 252
Journal article (peer-reviewed)abstract
- An experimental study to characterize properties controlling delamination of paperboard is presented. The normal and shear traction-separation laws are measured and evaluated using a double cantilever beam (DCB) and a split double cantilever beam (SCB) specimen. The DCB-experiments provides normal separation data in good agreement with results using alternative experimental techniques. From the measured data, both normal and shear fracture resistance data are obtained. A length parameter is introduced. The length parameter allows for the cohesive law to be obtained from a dimensionless master curve which is valid both for normal and shear loading. Taking advantage of the master curve, a mixed-mode potential is proposed. The mixed-mode potential is implemented as a user interface to a finite element code. As a final test, the experimental setups of the DCB and SCB specimens are simulated to validate the identified normal and shear properties.

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