uForceP and uForceN represent the pinched ratios of strengths under reloading and unloading, respectively.
The highest strength 7XXX alloys contain copper and are not weldable; they find use mainly in the aircraft industry because of their high ratio of strength to density.
Finer filler resulted in a higher ratio of strength to density.
Figure 7a shows the strength development of cement-limestone binary blends and Fig. 7b shows the relative strength of limestone blended concrete (relative strength is the ratio of strength of blended concrete to strength of control concrete).
Properties of samples such as tear strength, unit initiation energy and ratio of strength to toughness (RST) were improved by 10.91%, 20.32% and 22.17%, respectively.
The achieved high bio performance (ratio of strength to Young's modulus) is comparable (or even superior) with that of the recently developed Ti-based biomedical alloys.
The superiority of the proposed sections is quantified by an efficiency factor, defined in terms of ratio of strength gain to material volume increase.
However, there is no evidence that the strength or the ratio of strength between these muscle groups is different between those with SSI (cases) and an asymptomatic population (controls).
Compared with steel, FRP products have the following advantages: non-corrosive, non-magnetic, high ratio of strength to weight, high durability, inherent resistance to weather and the corrosive effect of caustics and salts as well as aggressive chemicals.
