Abstract
In order to theoretically analyze the compliance and the energy release rate of the sandwich single cantilever beam (SCB) test specimen, an analysis model named “beam on Vlasov foundation model” was proposed in the previous research. However, the core at the cracked portion (cracked core) of the sandwich SCB test specimen was not taken into account in the model. In this study, the effect of including the cracked core on the analysis results of a beam on Vlasov foundation model is investigated. The analysis model including the cracked core seemingly simulates more faithfully the actual configuration of the test specimen than the model neglecting the cracked core. However, it is found that the analysis model neglecting the cracked core provides accurate results, but the model including the cracked core provides excessively stiff solutions. Including the cracked core in addition to the assumption that the in-plane displacement in the core is fixed to zero may give excessively stiff conditions. Therefore, it is advisable to ignore the cracked core when using the beam on Vlasov foundation model to analyze sandwich SCB test specimens.
