C5| Tension, Compression, Shear

Question 1

Prismatic bar

Answer 1

Straight structural member having the same cross section throughout its length
Tow bar, columns

Question 2

Axial force

Answer 2

A load directed along the axis of a member resulting in either tension or compression

Question 3

Tensile stress

Answer 3

Positive stress where member is stretched by stresses

Question 4

Stress

Answer 4

Force acting perpendicular to cut surface
P/A= stress

Question 5

Compressive stress

Answer 5

Squashes

Question 6

Normal strain

Answer 6

Change in length when load is Axial loaded
Change in length /length

Question 7

Compressive strain vs tensile

Answer 7

Compressive bar in compression shortens -
Elongation as stretching of material occurs from tensile strain is tensile +

Question 8

True stress vs engineering /nominak/conventional stress

Answer 8

More exact vakue of Axial but

Question 9

Yielding

Answer 9

No noticeable increase in tensile force therefore material is perfectly plastic so it deforms without increase in applied load

Question 10

Strain harden

Answer 10

Material undergo changes in its crystalline structure =increased resistance of material to mire Deformation

Question 11

Plasticity

Answer 11

Characteristic of material by which it undergoes inelastic strains beyond the strain at the elastic limit

Question 12

Plastic flow

Answer 12

When large Deformations occur in a ductile material loaded into the plastic region

Question 13

Linearly elastic

Answer 13

Material that behaves elastiically and exhibits a kinear relationship between stress and strain

Question 14

Shear stress

Answer 14

Acts tangential to surface of material causes Deformation

Question 15

Factor of safety