Stress Concepts

Question 1

The branch of Physics that considers the action of forces on bodies or fluids that are both at rest and in motion

Answer 1

Mechanics

Question 2

Branch of Engineering that applies the principles of mechanics to any design

Answer 2

Engineering Mechanics

Question 3

also known as Mechanics of Deformable bodies

Answer 3

Strength of Materials (STREMA)

Question 4

the study of internal effect of external forces applied to the structural member

Answer 4

Strength of Materials

Question 5

This force acts perpendicular to the area

Answer 5

Normal Force

Question 6

It lies in the plane of the area and it develop when external loads tend to cause two segments of the body to slide over one another

Answer 6

Shear Force

Question 7

this effect when the external loads tend to twist one segment of the body with respect to the axis perpendicular to the area

Answer 7

Torque or Torsional Moment

Question 8

Cause by the external loads that tend to bend the body about an axis lying within the plane of the area

Answer 8

Bending Moment

Question 9

Defined as the strength of a material per unit area

Answer 9

Simple Stress or Stress

Question 10

Develops when a force is applied perpendicular to the cross-sectional area of the material

Answer 10

Normal Stress

Question 11

Developed if the applied force is parallel to the resisting area

Answer 11

Shear Stress

Question 12

It is the contact pressure between two bodies

Answer 12

Bearing Stress

Question 13

Can either be Tensile Stress or Compressive Stress

Answer 13

Normal Stress

Question 14

Compressive force will tend to ________ the member.

Answer 14

shorten

Question 15

Tension Force will tend to ________ the member

Answer 15

Lengthen/Elongate

Question 16

Also known as Tangential Stress

Answer 16

Shear/Shearing Stress

Question 17

The ratio of the Ultimate Stress and Allowable Stress

Answer 17

Factor of Safety

Question 18

The Force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder. This stress is called?

Answer 18

Hoop Stress

Question 19

A uniform tensile stresses in all direction

Answer 19

Membrane Stresses

Question 20

The extent to which it resist deformation in response to applied force

Answer 20

Stiffness

Question 21

A measure of how resistant solid matter is to various kinds for permanent change when force is applies

Answer 21

Hardness

Question 22

a solid’s ability to deform under tensile stress

Answer 22

Ductility

Question 23

The ability of a material to absorb energy when impacted

Answer 23

Toughness

Question 24

Property of a material in which a body returns to its original shape after remove of the load

Answer 24

Elasticity

Question 25

This test is used to determine the relationship between the average normal stress and average normal strain

Answer 25

Tension & Compression Test

Question 26

Obtained by plotting the various values of the stress and corresponding strain

Answer 26

Stress-Strain Diagram

Question 27

is the stress beyond which material will not return to its original shape

Answer 27

Elastic limit

Question 28

Stress is proportional to strain

Answer 28

Hooke’s Law

Question 29

Appreciable elongation of the material without any corresponding increase of load

Answer 29

Yield Point

Question 30

Is the highest ordinate on the stress-strain curve

Answer 30

Ultimate Stress

Question 31

Stress at failure

Answer 31

Rupture Strength

Question 32

Certain combinations of axially loaded members which the equations of static equilibrium are not sufficient for a solution

Answer 32

Statically Indeterminate

Question 33

If temperature Increase, The body will _______.

Answer 33

Expand

Question 34

If temperature decrease, The body will _______.

Answer 34

Contract

Question 35

Value of the linear coefficient of thermal expansion

Answer 35

11.6 x 10^-6 / Degree Celsius

Question 36

Commonly used connection between two shafts

Answer 36

Flanged Bolt Coupling