fracture

Such brittle fractures most commonly occur in dynamically loaded ferritic materials with body-centered- cubic, or bcc, crystal structure in which an imperfection serves as a stress concentrator.

Maximum circumferential stress criterion of brittle fracture at the interface edge of bonded materials, Journal of Hefei University of Technology 30(2): 200-202.

Brittle fracture of fibres in continuous fibre reinforced composites subjected to tensile loading in the direction parallel to the fibres has been predicted by means of the theory developed in [1].

As can be seen, we observed brittle fracture for samples showing a low dissipalion of energy (Tilde10 kJ/[m.sup.2]).

Propagation in the brittle fracture mode is related to crack speed and arrest occurs if speed falls below de-compression speed.

However, under certain conditions of stress-state strain rate and temperature, brittle fracture can occur without a significant plastic flow prior to fracture.

The area under the curves after maximum force for 100/0, 90/10/0, 90/10/0, and 70/30/0 compositions much higher than that of prior to maximum force indicating that crack propagation is slow with higher energy absorption associated with toughness differ from 90/0/10, 70/0/30, and 70/15/15 compositions which exhibited brittle fracture (24).

This investigation compares the indirect tensile high-strain rate brittle fracture with quasi-static ductile response.

During long time service the embrittlement leads to the decrease of critical flaw size of brittle fracture and to the reduction of the remaining life of a pressure vessel.

* higher corrosion and temperature resistance of Advantex over conventional E-glass, reducing brittle fracture failure;

The relation [[rho].sup.*] = (1/2[pi])[([K.sub.Ic]/[[sigma].sub.Y]).sup.2] with yield limit [[sigma].sub.Y] (approximately equal to the ultimate strength in the case of brittle fracture) given by Neuber [1-3] is conformed with the "critical distance approach."

The other is the brittle fracture which occurs unstably with small displacement.

These include ductile overload, brittle fracture, impact, fatigue, wear, and erosion.

They proposed that the variations in brittle Fracture stress are related to the density of tie molecules: the higher this density, the higher the brittle fracture stress.