Fracture Resistance of a material is the property of it as it is resisting to develop fractures.
This is some literature for your information
Fernanda de Carvalho Panzeri Pires-de-Souzaa, Heitor Panzeria, Marcelo Aparecido Vieiraa, Lucas da Fonseca Roberti Garciab, Simonides Consanib. (2009). Impact and Fracture Resistance of an Experimental Acrylic Polymer with Elastomer in Different Proportions. Materials Research, 12 (4), 415-418
M.S. Sham Prasad, C.S. Venkatesha, T. Jayaraju. (2011). Experimental Methods of Determining Fracture Toughness of Fiber Reinforced Polymer Composites under Various Loading Conditions. Journal of Minerals & Materials Characterization & Engineering, 10 (13), 1263-1275.
Blackman BRK, Pavan A, William JG (2003). Fracture of polymers, composites and adhesives II. ESIS and Elsevier, Oxford.