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hardness is the ability of material to resist /bear indentation or plastic deformation generally on the surface of materials.
strenght is generally withstandin stresses,fatigue etc.
toughness is the ability to absorb energy without physical change of material.
*Composite structures have some other unique characteristics. There is no yielding or bending point. When the ultimate strength is reached, it simply explodes or disintegrates. Metal alloys on the other hand usually exhibit a definite yield point or point at which some bending occurs before final failure. This allows us to utilize a smaller safety margin when using metals than is possible with composite structures. In other words, we must make the composite structure bigger and heavier to account for the extra safety margin. Composite materials allow engineers to create very complicated structures with reduced weight and increased strength at a lower-cost than can be achieved with some metal structures, but the limitation is usually in the manufacturing or machining methods available and not in the strength to weight ratio. In fact, it is usually possible to create a simple metal structure that is just as strong, stiff, and lightweight as is possible with most composites.
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An extra layer of material placed between the garment and the facing to add stiffness and strength is called the?
interfacing
What is the difference between y42 and a 234 wpb pipe fittings?
yield strength
What is the difference between dynamic strength and static strength?
well the static energy is the strength that resides in your body when you're not moving but dynamic energy is that the one occurs when you moving like swimming
What is the tinsel strength of steel?
You mean tensile strength. Different steels have different tensile strengths. The way they are made (drawn, cast, forged, etc.) is critically important to the tensile strength. By the way--steel is more important for its stiffness than its tensile strength.
What is the difference between S275 and S355?
Difference in strength, 275 and 355 refer to minimum yield stress of the material (275 MPa and 355 MPa).
An extra layer of material placed between the garment and the facing to add stiffness and strength is called the?
interfacing
What is the difference between 100 flex and 50 flex hockey sticks?
the stiffness of the stick when u flex it
What is the difference between strength and hardness?
The difference between strength and hardness is that the strength refers to the force that is present between the bonds. Strength attributes to how strong or weak the force between the bonds. Hardness refers to the nature of the force, which basically is how rigid or flexible the bonds between particles.
Is there a difference between a strength coach and a strength and conditioning coach?
Yes. Conditioning helps you to prepare.
What is the difference between cube and cylinder strength?
fc'=0.87 fck fc'= cylinder strength fck= cube strength
What is the difference between success and strength?
To have success you must succeed in something.
Difference between strength stiffness?
Strength and stiffness are not the same thing. Here's an analogy: A rubber band is stretched to failure. The rubber band failed at five pounds of force, but it stretched more than double its length before failure. The rubber band was not very stiff. In fact, it was elastic. Next, we stretch a kite string and find that it also fails at five pounds. It only stretched five percent before failure. It is very stiff. Both the rubber band and the kite string have the same ultimate strength. However, one is very stiff and the other is very flexible. This should demonstrate that strength and stiffness are not the same thing, and they are dependent upon the chosen material. Furthermore, the shape of the material also determines its stiffness without affecting its ultimate strength. For instance, if we take a plastic ruler that is 1/8" thick and 1" wide and bend it in the flat direction it is obvious that it is flexible. However, if we try to bend across the 1" thickness we find that it is very stiff. This demonstrates that the shape of the material causes the stiffness to change. We can take a piece of metal with a given weight and length and change its stiffness by making it narrower and thicker. Conversely, we can make it more flexible by making it wider and thinner.
What routine helps overcome soreness and stiffness and returns muscles to their resting strength?
cool-down
What is the difference between y42 and a 234 wpb pipe fittings?
yield strength
What is the difference between thor Iron Man venom and Wolverine?
The difference among Iron Man, Venom, and Wolverine is in their strength.
What is the difference between single and double strength window glass?
Single Strength Glass is 3/32" thickness and Double Strength Glass is 1/8" thickness.
What is the difference between balsa wood and pinewood?
They differ by both density and stiffness. Balsa is about/almost three times lighter and pine is three times stiffer. N.J.
