STREMA

Question 1

it deals with analyzing stresses and deflections in
materials under load.

Answer 1

Strength of Materials

Question 2

is defined as the internal force which is resisting
the external force per unit area.

Answer 2

Stress

Question 3

is a stress that occurs when a member is loaded
by an axial force.

Answer 3

Axial/normal stress

Question 4

is a force that causes layers or parts to slide upon
each other in opposite directions.

Answer 4

Shearing stress

Question 5

is load applied in one plane that would result in the
fastener being cut into two pieces.

Answer 5

Single Shear

Question 6

is load applied in one plane that would result in the
fastener being cut into three pieces.

Answer 6

Double shear

Question 7

is a failure mechanism in structural members like
slabs and foundation by shear under the action of
concentrated loads.

Answer 7

Punching shear

Question 8

A tank or pipe carrying a fluid or gas under a
pressure is subjected to tensile forces, which
resist bursting, developed across longitudinal and
transverse sections.

Answer 8

Thin-walled pressure vessels

Question 9

the endpoint of the stress-strain curve that is a
straight line.

Answer 9

proportional limit

Question 10

the stress is directly proportional to strain.

Answer 10

Hooke’s Law

Question 11

is the limit beyond which the material will no
longer go back to its original shape when the load
is removed, or it is the maximum stress that may e
developed such that there is no permanent or
residual deformation when the load is entirely
removed.

Answer 11

Elastic Limit

Question 12

is the point at which the material will have an
appreciable elongation or yielding without any
increase in load.

Answer 12

Yield point

Question 13

The maximum ordinate in the stress-strain
diagram.

Answer 13

Ultimate stress/strength

Question 14

is the strength of the material at rupture. This is
also known as the breaking strength.

Answer 14

Rupture point

Question 15

is the work done on a unit volume of material as
the force is gradually increased from the linear
range, in N·m/m3. It has an ability
to absorb energy without creating a permanent
distortion.

Answer 15

Modulus of Resilience

Question 16

is the work done on a unit volume of material as
the force is gradually increased from O to R, in
N·m/m3
It has an ability to absorb
energy without causing it to break.

Answer 16

Modulus of toughness

Question 17

is defined as the actual stress of a material under
a given loading.

Answer 17

Working stress

Question 18

The maximum safe stress that a material can
carry.

Answer 18

allowable stress

Question 19

The ratio of this strength (ultimate or yield
strength) to allowable strength.

Answer 19

Factor of Safety (FOS)

Question 20

The ratio of the shear stress τ and the shear
strain γ

Answer 20

Shear Modulus/ Modulus of Rigidity

Question 21

The ratio of the sidewise deformation (or strain) to
the longitudinal deformation (or strain)

Answer 21

Poisson’s ratio

Question 22

In solid mechanics, it is the twisting of an object
due to an applied torque

Answer 22

Torsion