23.3 ksi at 100 F
800n/mm2
Each steel alloy has it's own stress curve and tolerances. The design of something made of steel and the calculation of the stresses involved has to take into account certain safety factors depending on what is being made (a bridge for transporting goods and people has a different safety factor than a frame for a table!)
Stress is a force acting on certain area. Stress equals force divided by area.
According to the low cycle fatigue, the nominal maximum stress values are less than the ultimate tensile stress limit. Low cycle fatigue is failure under a stress reversal after less than 1000 cycles and generally occurs in metals where strains are very high, where stresses are in the plastic region High cycle fatigue is failure under a stress reversal after more than 1000 cycles and generally occurs in metals where strains are low, caused by defects, and growth, where stresses are in the elastic region
Sear stress are forces applied in opposition, producing a shearing or tearing force. Bearing stress is a load placed in one direction, such as the weight of a building bearing on the foundation.
ultimate stress=Factor of safety*Allowable stress
allowable bending stress for en8
allowable bending stress for en8
allowable stress design-2/3rd of yield working stress design is process yield
Depends on temperature.
stress in old concrete
70.4 megapascle
1400Kgf/cm2
800n/mm2
1,642 lbs
A factor of safety against yield is applied to design stress Yield Stress/ Design Stress = Factor of safety The factor of safety varies for different industries; 1.5 is used in structural steel design for buildings; 1.25 or even 1.1 for aircraft/space systems
1400 kgf/cm2 anindya