Mechanical Loading and Stress

A set of flashcards covering key concepts related to mechanical loading and stress, including types and effects on human tissues.

What is mechanical loading?

Any external force acting on the body.

What are the types of mechanical loads?

Compressive load, tensile load, sheer load, bending load, torsional load.

What is compressive load?

A load that results in compression or squeezing.

What is tensile load?

A load that results in stretching.

What is sheer load?

A load that results in sliding.

What is bending load?

A load that results in bending.

What is torsional load?

A load that results in twisting.

What is mechanical stress?

The internal resistance in tissue due to an external load per unit of tissue.

What is compressive stress?

Resistance to being compressed, calculated as Compressive load / Area.

What is tensile stress?

Resistance to being pulled apart, calculated as Tensile load / Area.

What is sheer stress?

Resistance to sliding, calculated as Sheer load / Area.

How do bending loads affect mechanical stress?

They cause both tensile and compressive stress depending on the load's magnitude and distance from the axis.

How do torsional loads affect mechanical stress?

They create tensile and compressive stress along the spiral line and sheer stress in the transverse plane.

What do the mechanical loads cause in body tissues?

They cause stress resulting in deformation.