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Fast cracking propagation

Fig. 9a and b. Fracture surfaces of a high (M = 8 10 ) and b low (M = 1.15 10 ) molecular weight PMMA showing transition from slow to fast crack propagation (left to right)... [Pg.118]

The high susceptibility to fracture of porcelain restorations is caused by their brittle nature, that is, their low capability to absorb strain energy due to an external loading before fast crack propagation occurs. The resistance to crack propagation can be quantified by the fracture toughness (K, ) which is given by [9,10] ... [Pg.166]

G. R. Irwin. "Onset of Fast Crack Propagation in High Strength Steel and Aluminum Alloys," Naval Research Laboratories, Report 4763, May 24, 1956. [Pg.649]

Intermediate temperature. The rubber is able to relax during the relatively slow build-up of stress at the base of the notch, but not during the fast crack propagation stage. Stress... [Pg.427]

The XPS results indicate that in the region with fast crack propagation, the... [Pg.412]

A more pronounced transition from slow to fast crack propagation is reported for PMMA [61,66, 197, 200] but the surface features are roughly comparable to those in PS. As observed by Doll and Weidmann [61, 66] at slow crack speeds ( < 0.1 ms ), independent of molecular weight, a rather smooth fracture surface is... [Pg.300]

See other pages where Fast cracking propagation is mentioned: [Pg.111]    [Pg.208]    [Pg.174]    [Pg.185]    [Pg.504]    [Pg.94]    [Pg.116]    [Pg.118]    [Pg.123]    [Pg.96]    [Pg.276]    [Pg.26]    [Pg.552]    [Pg.206]    [Pg.322]    [Pg.111]    [Pg.852]    [Pg.412]    [Pg.414]    [Pg.419]    [Pg.420]    [Pg.420]    [Pg.411]    [Pg.32]    [Pg.243]    [Pg.2442]   
See also in sourсe #XX -- [ Pg.151 ]



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