Mechanics and Failure of Structured Interfaces
This dissertation concerns heterogeneous, structured interfaces' mechanics and failure, in particular the load response, critical fracture energy and crack kinetics. During the project eight manuscripts have been prepared and submitted to scientific journals. Five of these are included here forming the main body of the dissertation. The topics of these include development and test of a new nano-adhesive based on polymer brushes to bond rubber and metal, a novel peel test specimen comprising a heterogeneous geometry, consequences of zones of weak adhesion, bridging of a support carrier in the bondline, and, macro- and micromechanical behavior of pillar-structured interfaces. Analytical modeling and numerical simulations backed up by experimental testing were used to study these, among others.
S. Heide-Jørgensen, R. K. Møller, K. B. Buhl, S. U. Pedersen, K. Daasbjerg, M. Hinge, and M. K. Budzik, “Efficient bonding of ethylenepropylene-diene M-class rubber to stainless steel using polymer brushes as a nanoscale adhesive,” Int. J. Adhes. Adhes., vol. 87, no. September, pp. 31–41, 2018.
S. Heide-Jørgensen and M. K. Budzik, “Crack growth along heterogeneous interface during the DCB experiment,” Int. J. Solids Struct., vol. 120, pp. 278–291, 2017.
S. Heide-Jørgensen and M. K. Budzik, “Effects of bondline discontinuity during growth of interface cracks including stability and kinetic considerations,” J. Mech. Phys. Solids, vol. 117, pp. 1–21, 2018.
S. Heide-Jørgensen, S. Teixeira de Freitas, and M. K. Budzik, “On the fracture behaviour of CFRP bonded joints under mode I loading: Effect of supporting carrier and interface contamination,” Compos. Sci. Technol., vol. 160, pp. 97–110, 2018.
S. Heide-Jørgensen, M. K. Budzik, and K. T. Turner, “Mechanics and fracture of structured pillar interfaces,” Journal of the Mechanics and Physics of Solids, p. 103825, 2019.
M. K. Budzik and S. Heide-Jørgensen, “Branching and softening of loading path during onset of crack at elastic-brittle interface,” Mech. Mater., vol. 127, pp. 1–13, aug 2018.
K. B. Buhl, R. K. Møller, S. Heide-Jørgensen, A. N. Kolding, M. Kongsfelt, M. K. Budzik, M. Hinge, S. U. Pedersen, and K. Daasbjerg, “Highly efficient rubber-to-stainless steel bonding by nanometer-thin cross-linked polymer brushes,” ACS omega, vol. 3, no. 12, pp. 17511– 17519, 2018.
R. Røjkjær, E. Andersen, S. Heide-Jørgensen, C. Ciallella, R. Mikkelsen, S. Kristiansen, and M. Hinge, “Straight forward approach for obtaining relaxation-recovery data.,” 2018.
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S. R. Ranade, Y. Guan, R. B. Moore, J. G. Dillard, R. C. Batra, and D. A. Dillard, “Characterizing fracture performance and the interaction of propagating cracks with locally weakened interfaces in adhesive joints,” Int. J. Adhes. Adhes., vol. 82, pp. 196–205, 2018.
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