Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Deformable bodies > Finals > Flashcards

Finals Flashcards

1
Q

This will determine the strength of a material on its ability to sustain a load
without due deformation or failure.

A

Torsion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A device that is used to measure changes in the length of an object

A

Extensometer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When an external torque is applied to a shaft, it creates a corresponding
internal torque within the shaft.

A

Torsional shearing
stress

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

It is a moment that tends to twist a member about its longitudinal axis.

A

Torque

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Defined as the work performed per unit of time.

A

Power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Force parallel to the area resisting the force.

A

Shear Stress

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The angle θ through which the bar length L will twist.

A

Angle of Twist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

In most cases, load are perpendicular to the axis of the beam.

A

True HAHAHA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Members that are slender and support loadings that are applied
perpendicular to their longitudinal axis.

A

Beams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Usually long, straight prismatic members.

A

Beams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Transverse loading causes only what?

A

Bending (M) and Shear
(V) in beam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

It has one or both of its ends freely extended over the supports.

A

Overhanging Beams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pinned at one end and roller supported at the other.

A

Simply supported beam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The transverse loading of beam may consist of ______ & _______

A

Concentrated and
Distributed Loads

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Fixed at one end and free at the other.

A

Cantilever beam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

6 types of Beams

A

Simply supported beam
Overhanging beam
Cantilever beam
Continuous beam
Beam fixed at one end
and simply supported
at the other end
Fixed Beam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The force that acts parallel to the cross-section of a structural element.
Obtained by summing forces perpendicular to the beam’s axis.

A

Shear force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The bending moment at any given point of a beam is positive when the
external forces (loads and reactions) acting on the beam tend to bend the
beam.

A

Determinations of
shear force and bending
moment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The shear at any given point of a beam is positive when the external forces
(loads and reactions) acting on the beam tend to shear off the beam.

A

Determinations of
shear force and bending
moment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The shear at any given point of a beam is ________ when the external forces
(loads and reactions) acting on the beam tend to shear off the beam.

A

positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the external Forces

A

Loads and Reactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Engineers frequently make approximations or simplifications of the
loadings on a body in order that the stress produced in a structural member
or mechanical element can be analyzed in a single plane.

A

Plane Stress

23
Q

The general state of stress at a point is characterized by six independent
normal and shear stress components, which act on the faces of an element
of material located at the point.

A

Plane Stress

24
Q

When this is the case, the material is said to be subjected to plane stress.
Example: axial bars, beams in bending and circular members in torsion

A

Bending moment

25
Q

Obtained by summing moments about the sectioned end of the segment.

A

Bending moment

26
Q

The moment that occurs when an external force is applied to the element
causing it to bend.

A

Bending moment

27
Q

These stresses act on principal planes where the shear stresses are zero.

A

Principal stress

28
Q

These stresses act on principal planes where the shear stresses are ______.

A

zero

29
Q

When a structural element is subjected to several types of loads acting
simultaneously, say bending and torsion.

A

Principal stress

30
Q

True or false
The maximum shear stress is equal to one half the difference of the
principal stresses

A

True

31
Q

True or False
Planes of maximum shear stress occur at 45° to the principal planes.

A

True

32
Q

Planes of maximum shear stress occur at 45° to the _______.

A

principal planes

33
Q

Planes of maximum shear stress occur at ______ to the principal planes.

A

45°

34
Q

True or False
Shear stresses are zero on principal planes.

A

True

35
Q

True or False
Principal stresses occur on mutually perpendicular planes.

A

True

36
Q

___________ occur on mutually perpendicular planes.

A

Principal stresses

37
Q

The displacement in the y direction of a cantilever beam with a
concentrated load acting upward at the free end.

A

Deflection “v”

38
Q

A graphical representation of the transformation equations for plane stress
problems. It is useful in visualizing the relationships between normal and
shear stresses acting on a stress element at any desired orientation.

A

Mohr’s circle

39
Q

A graphical representation of the transformation equations for plane stress
problems.

A

Mohr’s circle

40
Q

It is useful in visualizing the relationships between normal and
shear stresses acting on a stress element at any desired orientation.

A

Mohr’s circle

41
Q

Mohr’s circle is useful in visualizing the relationships between ____&______ acting on a stress element at any desired orientation.

A

normal and
shear stresses

42
Q

It is the angle between the x axis and the tangent to the deflection curve.

A

Angle of rotation/Slope

43
Q

The slope and deflection of beam caused by several different loads acting
simultaneously can be found by superimposing the slopes and deflections
caused by the loads acting separately.

A

Method of
Superposition

44
Q

The slope and deflection of beam caused by several different loads acting
simultaneously can be found by ______ the slopes and deflections
caused by the loads acting separately.

A

superimposing

45
Q

This method entails obtaining the slope θ and the deflection v of the beam.

A

Method of successive
integration

46
Q

The principle of superposition is valid under the following conditions:

These requirements ensure that the differential equations of the deflection
curve are ______.

A

linear

47
Q

True or false
The principle of superposition is valid under the following conditions:
 Hooke’s law holds for the material.

A

True

48
Q

True or false
The principle of superposition is valid under the following conditions:

 The deflection and rotations are small.

A

True

49
Q

True or false
The principle of superposition is valid under the following conditions:

 The presence of the deflection does not alter the actions of applied
loads.

A

True

50
Q

The principle of superposition is valid under the following conditions:
(3)

A

 Hooke’s law holds for the material.
 The deflection and rotations are small.
 The presence of the deflection does not alter the actions of applied
loads.

51
Q

An angle in radians made by the tangent of the section with the original axis
of the beam.

A

Slope

52
Q

It is the axis of a deflected beam.

A

Elastic curve

53
Q

The degree to which a part of a long structural element (such as beam) is
deformed laterally under a load.

A

Deflection

54
Q

L shown in various parts in
figure is called ‘______’.

A

span

Deformable bodies (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions