Engineering Science

Rubber

Which of the following is a "non-hookean" material?

If the resultant force acting on a particle is zero the particle remains at rest or moves with constant speed in a straight line

Newton's First Law of Motion states that:

Center of gravity

The point through which the whole weight of the body acts is called

1 MPa

A block 100mm x 100mm base and 10mm height. What will be the direct shear stress in the element when a tangential force of 10kN is applied?

Hooke's Law

States that strain produced within elastic limits is proportional to the stress producing it

Normal Stress

The stress which acts in a direction perpendicular to the area

Shear Force Diagram

A diagram which shows the variations of the axial load for all sections in the span of a beam

Equilibrium

A condition in which the resultants of all forces acting on the body is zero

True

Statics of rigid bodies is the study of materials objects or particles at rest or moving under constant velocity

Rigid Body

A combination of large number of particles in which all particles remain at a fixed distance from one another before and applying a load

Varignon's Theorem

States that the moment of a force about a point is equal to the sum of the moments of the force's components about that point

Tensile

When equal and opposite forces applied to a body tend to elongate it the stress produced is

Yielding Point

Stress at which extension of a material takes place more quickly as compared to the increase in load

kN m

SI unit for bending moment

Weight

Refers to the gravitational force (attraction) of the earth acting on a body

Neutral Axis

In a beam which layer is neither elongated nor shortened during bending?

Free Body Diagram

Isolates a body from its surroundings and considers all the forces acting on the body

3

In a body loaded under plane stress conditions how many independent stress components are present?

KN

SI unit for shear force

Rigid

A body is one which does not deform under the action of external forces

False

The types of normal stresses are shear and bending