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Why does tension and compression needed in bending a material?
Wiki User
∙ 13y ago
When you bend a material the fibers at the outer extremes of the material thickness stretch on side ( tension) and shorten on the other side ( compression). At the mid (neutral) plane of the thickness theer is no stretch or shortening, so theer is neithetr tension nor compression there
Wiki User
∙ 13y ago
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Why are reinforcements needed for concrete?
Concrete (like stone) is very strong in compression but breaks almost instantly in tension. It is also weak in response to side forces and twisting forces. Steel bars are very strong in tension but crumple and fold instantly in compression. By putting steel reinforcement bars in concrete and pretensioning the bars before the concrete hardens creates a composite material that is strong in both compression and tension (with each material supporting the other) and also improves the response to side forces and twisting forces.
Why steel is used to reinforce concrete explain it?
There are two main loading conditions that concrete under goes. These are Compression and Tension. Concrete is very strong in compression and is very weak in Tension (pulling apart). Concrete has so little strength to resist tension it is assumed to have no strength in tension. When civil engineers design concrete structures they can determine where the tension and compression will be located. Steel is added to give the concrete tensile strength. For Example a concrete beam when loaded from the top will experience compression on top section of the beam. The top portion of the beam will push inwards creating compression while the bottom section will pull apart creating tension. (Imagine a smile shape). :) Therefore reinforcement will be needed in the tension area (bottom).
How much weight can a beam bridge hold?
The maximum weight for a beam bridge can hold in 650 grams. A beam bridge Works on the standards of tension and compression, so a strong beam is needed to oppose twisting and bending under the weight it ought to support
What is the development length in concrete?
Development Length is the shortest length needed for reinforcing bar so that the stresses can induced in the bar can increase from zero to the yield strength of the said bar. The development length is a function of the bar size, yield strength, concrete strength and other factors such as coating of the bar. Also, the development length of a bar is dependent to whether the bar is in tension or compression. Tension development lengths are larges than compression development lengths because in compression, the reinforcing bar gets some help from the concrete, while in tension it does not.
How do you get compression back in an rx 7?
If you have loss of compression then a full rebuild of the engine is most likely needed.
Why are there no spark plugs on a compression ignition engine?
They are not needed, the high compression creates enough heat for the air fuel mixture to self ignite.They are not needed, the high compression creates enough heat for the air fuel mixture to self ignite.
What is established through compression testing?
Compression testing is done on engines and it establishes whether the engine has good compression. Good compression is needed for the engine to start easily and run efficiently.
What does a catapult consist of and what math is needed?
A catapult is a mechanical device that can be used to project a projectile. There are several different designs. The device is "charged" by either stretching an elastic material or by putting a beam under a bending tension. This stores up potential energy in the machine. The catapult is then fired by releasing this energy instantly. The mathematical required are:calculation of tension in the elastic band or bent beam,impulse imparted to the projectile,trajectory of projectile travelling under the influence of the force of gravity.At school, it is usually assumed that air resistance can be ignored.
What is a compression?
Packing a lot of meaning into a small space
What type of force is needed to change the of objects?
force of compression
The bending of sound waves around corners is called?
Diffraction. Your welcome to shower needed it(:
What type of force is needed to change the velocity of object?
force of compression
