Kink-band analysis

Kink-band failure occurred at 220°C. The mechanism that initiates kink-band failure was described by Argon [25] and Budiansky [26]. Similar to delamination. 

Temperature-dependant material property models were implemented into stmc-tural theory to establish a mechanical response model for FRP composites under elevated temperatures and fire in this chapter. On the basis of the finite difference method, the modeling mechanical responses were calculated and further vaUdated through experimental results obtained from the exposure of full-scale FRP beam and column elements to mechanical loading and fire for up to 2 h. Because of the revealed vulnerabihty of thermal exposed FRP components in compression, compact and slender specimens were further examined and their mechanical responses and time-to-failure were well predicted by the proposed models. 

For the cellular beam elements exposed to fire, both water-cooled and noncooled specimens showed similar rapid increase of deflections during the first 10-20 min 

The experiments on compact GFRP tubes from different experimental scenarios comprising different flow rates and load levels, demonstrated that the endurance of FRP stractural components subjected to combined thermal and mechanical 

Springer, G.S. (1984) Model for predicting the mechanical properties of composites at elevated temperatures. J. Reinf. Plast. Compos., 3 (1), 85-95. Chen, J.K., Sun, C.T., and Chang, 

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