Cite as: Kocak, M.; Chen, L.; Terlinde, G.; Gnirss, G.; Schwalbe, K.: CTOD testing of HAZ and analysis of pop-in behaviour. In: Salama, M.; Denys, R.; Rhee, H.; Koo, J. (Ed.): Proceedings of the 7th International Conference on Offshore Mechanics and Arctic Engineering (OMAE 1988). Houston, TX (USA). 1988. 297-304.