In (1), [[sigma].sub.Cmax] is the ultimate stress
of composite materials; [[sigma].sub.fmax] is ultimate stress
of fiber; and [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is the stress of ultimate matrix strain.
A similar trend was found between ultimate stress
and cross-head speed, which was expected based on Eq.
The concepts of the ultimate stress
distribution and the plastic hinge lose their meaning also.
The average yield stress ([f.sub.y)] and ultimate stress
([f.sub.u]) of the steel hollow sections is in Table 2.
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AUTHOR Richard Carlson is the ultimate stress
The day the show was broadcast, however, middle-aged Ms Hobson was running an advert in the Sauna and Massage column of her local paper offering the "ultimate stress
decreased with the increasing temperature, particularly for temperatures exceeding 400[degrees]C, while the strain corresponding to the peak strength increased with temperature.
The filler-matrix bonds act as extra crosslinks at the interfaces of the composite materials, improving the matrix-fiber adhesion, giving more compact structures (density section) as well as enhancing the mechanical properties, modulus and ultimate stress
. TABLE 1.
From these results it is clear the reduction in the ultimate stress
and ultimate strain when the number of cycles fatigue increases for the both laminates.
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A correlation between ultimate stress
(MOR) and elasticity as measured during the initial loading cycle, is given in Figure 2.