Uniaxial tensile tests for the P(VDF-TrFE) 75/25 copolymer films demonstrate that the copolymer films annealed at 135[degrees]C for 2 h, 6 h and that annealed at 140[degrees]C for 2 h all show the typical polymeric brittle fracture
For brittle fracture
(including the location of the "knee" or the transition from ductile to brittle fracture
), the pipe wall thickness does not seem to exert a substantial influence on the creep rupture performance of PE pipe.
From the fact that the brittle fracture
of polymer has a relation to the ratio of the craze strength to the yield strength, this result shows that the toughness of the blend has no relation to the types of elastomers if the voids are not formed during the plastic deformation.
is accompanied by unstable crack propagation, a mode of failure that should be avoided in practice.
IC], was lower below the [beta] relaxation, and this could help explain the brittle fracture
that occurs at temperatures below [T.
In particular, the time it takes to transition from ductile to brittle fracture
is different for Charpy samples taken along different orientations relative to the plastic defonnation.
It is a cleavage and brittle fracture
in splitting surfaces just as desired in fracture splitting process.
Comparing these images to those from the subject pulley (Figure 4) confirms that the fibers in the subject pulley fractured in a manner consistent with classical brittle fracture
due to overload.
Mechanism responsible for brittle fracture
of notched specimens is known to be crazing.
Is it possible to explain the occurrence of brittle fracture
in polyethylene with fractography and chemical analysis?
This article looks at the increased risk of rapid crack propagation (RCP), referred to as a "fast brittle fracture
," or by the construction industry as a "linear split" that must be considered when increasing the diameter and wall thickness of PE pipe.
This crack resulted in brittle fracture
of the pole in service.
The medal is named for a pioneering British metallurgist and crystallographer who was the first person to use a scanning electron microscope for studies of fracture and who identified the cause of brittle fracture
that plagued World War II Liberty Ships.
Pipe bursting is a trenchless replacement method in which an existing pipe is broken either by brittle fracture
or by splitting, using an internal, mechanically applied force by a bursting tool.
It covers price and availability; the elastic moduli; yield strength, tensile strength, and ductility; fast fracture, brittle fracture
, and toughness; fatigue failure; creep deformation and fracture; oxidation and corrosion; and friction, abrasion, and wear.