Experimental evaluation of normal and shear delamination in cellulose-based materials using a cohesive zone model

An experimental study to characterize properties controlling delamination of paperboard is presented. The normal and shear traction–separation laws are measured evaluated using a double cantilever beam (DCB) split (SCB) specimen. DCB-experiments provides separation data in good agreement with results alternative techniques. From the data, both fracture resistance obtained. A length parameter introduced. allows for cohesive law be obtained from dimensionless master curve which valid loading. Taking advantage curve, mixed-mode potential proposed. implemented as user interface finite element code. As final test, setups DCB SCB specimens simulated validate identified properties.