The magnetomechanical effect is a fundamental feature of ferromagnetism. The fact that the application of external stresses alters the flux density of a magnetized ferromagnet, and thus the shape, and size of its hysteresis loops is easily changeable.

Simply, it is the phenomenon of changing the magnetic properties of ferromagnetic materials by applying external stresses.

Magnetomechanical effects connect magnetic, mechanical and electric phenomena in solid materials.

• Magnetostriction
• Inverse magnetostrictive effect
• Wiedemann effect
• Matteucci effect
• Guillemin effect

Magnetostriction is thermodynamically opposite to inverse magnetostriction effect. The same situation occurs for Wiedemann and Matteuci effects.

For magnetic, mechanical and electric phenomena in fluids see Magnetohydrodynamics and Electrohydrodynamics.