Fig. 5

Failure modes of tested samples: (a) barreling mode in G1D7CP100 sample (b) shear zone failure of G4D28CP100 sample (c) shear zone failure of G6D28CP100 sample.

Failure modes of tested samples: (a) barreling mode in G1D7CP100 sample (b) shear zone failure of G4D28CP100 sample (c) shear zone failure of G6D28CP100 sample.