Vocabulary - Structural

Question 1

Ductility

Answer 1

The property of a material that permits it to undergo plastic deformation when subject to tensile force.

Question 2

Stiffness

Answer 2

The property of a material that enables it to resist deformation.

Question 3

Deformation

Answer 3

The change in dimensions of a material.

Question 4

Elasticity

Answer 4

The property of a material that enables it to return to its original size and shape when the load to which it has been subjected is removed.

Question 5

Shear

Answer 5

A result when two parallel forces having opposite sense of direction act on a body, tending to cause one part of the body to slide past an adjacent part.

Question 6

Neutral Axis

Answer 6

The line corresponding to the neutral surface for a cross section of a beam.

Question 7

Plasticity

Answer 7

A material that does not return to its original dimensions when the load causing deformation is removed. The opposite quality to elasticity.

Question 8

Elastic Limit

Answer 8

The unit stress beyond which the deformations increase in a faster ratio than the applied loads.

Question 9

Yield Point

Answer 9

The stress at which deformation occurs. Material: Structural Steel

Question 10

Ultimate Strength

(Ultimate Stress)

Answer 10

The unit stress that occurs just at or before rupture. Material: Structural Steel

Question 11

Modulus of Elasticity

Answer 11

The ratio of the unit stress to the unit deformation. Represented by [E] = Indicates the stiffness of a material

Question 12

Answer 12

Roller Support

Question 13

Answer 13

Rocker Support

Question 14

Answer 14

Fixed Support

• Moment - Resisting
• Monolithic

Question 15

Answer 15

Pin Joint

Question 16

Answer 16

Rigid Joint

Question 17

Point of Inflection

Answer 17

The point along the beam length at which the curvature of the beam changes and at which the value of the bending diragram is zero.

Also known as point of contraflexure