Biomechanics And Kinesiology - Material Properties Of Biological Tissue Flashcards
1
Q
What is biomechanics and kinesiology
A
- the study of the muscular, skeletal and nervous systems in relation to their function in human movement and body mechanics
2
Q
Extensive properties
A
- depend on the amount of the material
- example: mass
3
Q
Intensive properties
A
- are independent of quantity
- example: density
4
Q
Stress
A
- intensive property
- force per unit
- measure of the intermolecular resistance within a structure to the deforming actions of an outside force
5
Q
Strain
A
- intensive property
- change in length of a structure divided by its original length
6
Q
Force
A
- force = mass x acceleration
7
Q
Tension
A
- lengthening and narrowing
8
Q
Compression
A
- shortening and widening
9
Q
Bending
A
- superior surface: has tension
- inferior surface: has compression
10
Q
Shear
A
- parallel to the structure from both sides at the same time
- example: scissors
11
Q
Load deformation curves
A
- provides information about the strength and stiffness of a whole structure
- elastic region, yield point, plastic region and ultimate failure point
12
Q
Elastic region
A
- provides information about the elasticity of a structure
- deformation is not permanent
13
Q
Yield point
A
- signals the elastic limit of the structure
- beyond this point permanent deformation occurs
14
Q
Plastic region
A
- permanent deformation occurs
15
Q
Ultimate failure point
A
- as load is progressively increased, the load at some point will fail
