ultimate stress=Factor of safety*Allowable stress
ST 37 means the ultimate stress which the steel can withstand is 370 Mpa from this you can get the yield stress which equals 0.7 of the ultimate stress.
Breaking stress is the maximum amount of stress a material can withstand before it breaks. This is also known as ultimate tensile stress.
Fracture stress is only less than ultimate tensile strength in an engineering stress-strain diagram. This is because the material will experience a maximum stress before it undergoes necking. After necking, stress will decrease again until the material snaps.
The elasticity of a material is the measure of it's elastic properties, how bendable it is. where as it's ultimate strenght is the force which you require to be able to break that material into 2
Ultimate shear stress of Mild steel is 210N/sq mm
The greatest stress that a material can resist before breaking is called the ultimate tensile strength. It is the maximum amount of stress a material can withstand without breaking under tension. Different materials have different ultimate tensile strengths, and it is an important property to consider for designing and engineering structures.
You usually say that the member fractures or fails at its ultimate stressDepending on the properties of the material, as stress increases, a typical metal will undergo elastic deformation, then a region of (nearly) constant plastic deformation, then strain hardening, a period of necking and then fracture.
after ultimate tensile strength (UTS)
The Swiss secret to ultimate health is pretty simple really. That whole region is one area that does not have alot of problems. One big part that affects peoples health is the amount of stress they are under. If you tend to be under alot of stress you will use vices to cope. No stress equals no vices.
hehe of course the material will be deform :)