Flashcards in Tissue Biomechanics 2 Deck (31):
The total energy required to cause material FAILURE.
How can toughness be estimated on the stress/strain curve?
By observing the TOTAL AREA under the stress strain curve.
Describe bone in strength, ductility, and toughness:
Low ductility (brittle)
Describe a tendon in strength, ductility, and toughness.
Moderate strength and ductility
Describe a ligament in strength, ductility, and toughness:
Low strength, high ductility,
The ability to return to original shape when the load is removed:
The point at which the applied stress can lead to PERMANENT DEFORMATION:
The nonlinear response of the material after the yield point - some degree of deformation will persist after removal of stress:
In the plastic region, will the material return to normal shape?
Property of materials to resist loads that produce shear or tensile forces:
What refers to putty like behavior? (The linear deformation produced by tensile stress remains after the stress is removed:
Viscous (plastic) stretch
The majority of body tissues are this:
When a material shows both viscosity AND elasticity:
Viscoelastic structures will show ______ dependent loading characteristics:
What are the three time dependent loading characteristics of viscoelasticity?
Continued deformation over time when constantly loaded.
The corresponding eventual decrease in stress that will occur as fluid is NO long exuded:
Energy loss exhibited by Viscoelastic material when they are subjected to loading and unloading cycles:
Creep in tissues occurs because of what?
Expulsion of water (IVDs)
The larger the load, the ______ the hysteresis.
The part of the graph for normal range of motion:
This region of the graph is after taking out the slack in soft tissue:
Is it still elastic in the micro-failure region of the graph?
A grade one strain and small amount of damage happen in this region of the graph:
The stress when plastic deformation starts:
Magnitude of stress on the load--deformation curve at which appreciable deformation takes place without any appreciable increase in load:
The tissue undergoes PLASTIC deformation, grade 2 sprain:
Eventually the tissue ruptures, what grade sprain is this?
Grade 3 sprain
Are you looking at the graph for loading characteristics? In order how does it go?
No, then look
Toe region is also known as the: