Mechanical Properties Of Tendons And Ligaments

Question 1

Both tendon and ligament exhibit ___-______ loading properties

Answer 1

Non-linear

Question 2

In Non-linear elasticity, ____-________ or ______-______ _______ is not linear.

Answer 2

Load-elongation; stress strain curve

Question 3

Viscoelasticity: visco

Answer 3

A small amount of load results in relatively large deformation

Question 4

Viscoelasticity: elastic

Answer 4

Able to resume its normal shape after distortion

Question 5

What are the 3 characteristics/types of viscoelastic material of tendon/ligament

Answer 5

1. Creep
2. Stress relaxation
3. Energy dissipation/Hysteresis

Question 6

Creep

Answer 6

Increasing deformation under constant load
(Resting —> weight —> wait)

Question 7

Creep describes increase in _________ with sustained ______.

Answer 7

Deformation; load

Question 8

Stress relaxation

Answer 8

Decreasing stress under constant deformation;
(Hard to stretch —> not hard to stretch —> pulls back on you less)

Question 9

Stress relaxation describes a decrease in ________ with sustained __________.

Answer 9

Stress; deformation

Question 10

Energy dissipation (hysteresis)

Answer 10

Load deformation relationship is different in loading and unloading

Question 11

Energy dissipation over repetitive cycles describes increase in _______ with __________ _____.

Answer 11

Deformation; loading cycles

Question 12

Draw an example of Creep

Answer 12

Resting —> weight —> wait

Question 13

Draw an example of Stress relaxation

Answer 13

Resting —> deformation applied —> later

Question 14

Draw an example of energy dissipation

Answer 14

Resting —> weight —> later —> resting

Question 15

Up to how many cycles is elongation in repetitive loading have to go through to become stable?

Answer 15

Up to 10 cycles

Question 16

Decreasing stress under constant deformation describes which viscoelastic property?

Answer 16

Stress relaxation: decreasing stress under constant deformation