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Assumptions of ultimate load method?

1. Plane sections normal to axis remain plane after bending. This implies that strain is proportional to the distance from neutral axis. 2. Maximum strain in concrete of compression zone at failure is 0.0035 in bending 3. Tensile strength of concrete is ignored. 4. The stress-strain curve for the concrete in compression may be assumed to be rectangle, trapezium, parabola or any other shape which results in prediction of strength in substantial agreement with test results.


What is the difference between Bending and Direct Stress?

-> when a structural body gets deviated from its original position or from its centroidal axis due to externally applied load,then it is termed as BENDING->DIRECT STRESS is the stress which act normal to the plane-> stress and bending are the two different things. stress produced by load per area & bending is the effect produced by load and stress.


Why steel is used to reinforce concrete?

Concrete reinforcing steel is commonly used in bridges, buildings, skyscrapers and road construction. Reinforcing concrete with steel significantly increases its strength in an economical and safe manner.


What is the difference between tensile strength and tensile modulus?

Tensile strength is the ultimate capacity of the material to resist a tensile load regardless of deflection.Tensile modulus also known as Young's modulus, is a measure of the stiffness of an isotropic elastic material. It is defined as the ratio of the uniaxial stress over the uniaxial strain. It is determined from the slope of a stress-strain curve traced during tensile tests conducted on a sample of the material.


What is the difference between a load-controlled tensile test and a displacement-controlled tensile test?

If the test is set to load-control , it means that the stress will not drop once the fracture become unstable. In displacement control the stress may drop at unstable fracture.

Related Questions

Which of these stress is bigger yield or tensile?

Yield stress is bigger than tensile stress.


Relation between tensile stressbending moment and section of modulus?

The relation between bending moment and the second moment of area of the cross-section and the stress at a distance y from the neutral axis is stress=bending moment * y / moment of inertia of the beam cross-section


Assumptions of ultimate load method?

1. Plane sections normal to axis remain plane after bending. This implies that strain is proportional to the distance from neutral axis. 2. Maximum strain in concrete of compression zone at failure is 0.0035 in bending 3. Tensile strength of concrete is ignored. 4. The stress-strain curve for the concrete in compression may be assumed to be rectangle, trapezium, parabola or any other shape which results in prediction of strength in substantial agreement with test results.


What are the 5 types of mechanical stress?

There actually only 3 principle types of stress: Tensile, Compressive and Shear. The other two are actually combinations of those three. Those stresses are torsional and bending. Torsional stress is generally a tangentially arranged collection of shear stresses. Bending is a combination of both compression and tension on opposite sides of a neutral plane through the bending section.


What are the relation between tensile stress and shear stress and bearing stress?

Tensile Stress is approximately two times the shear stress.Relationship bet n Tensile Stress and bearing stress varies from application to application.It Depends on Various Factors.


What is the applications of prestressed concrete?

Applications of prestressed concrete:Used in large diameter concrete pipesUsed in railway sleepersWater tanksPrecast concrete piles to counter tensile stress during transport and erection. used in bridges construction


What is the opposite stress of compressional stress?

Tensile.


What is full prestressing?

It is the one in which tensile stresses in the concrete are entirely obviated at working loads by having sufficiently high pre-stress in the member.


How do you calculate tensile stress?

tensile stress=tensile load/cross sectional areaex. tensile stress= p/a= 50kilo newton x 1000n/kg divide by pi/4(20)^2=159.15N/mm^2


What is a Stress at a divergent stress boundary?

This is known as tensile stress.


What is the difference between tensile strength and tensile stress, and how do they relate to each other in terms of material properties?

Tensile strength is the maximum amount of tensile stress a material can withstand before breaking. Tensile stress is the force applied per unit area of the material. Tensile strength is a property of the material itself, while tensile stress is the external force acting on the material. In terms of material properties, tensile strength indicates the material's ability to resist breaking under tension, while tensile stress measures the amount of force applied to the material.


What is meaning of tensile strain at break?

tensile stress =force/area