You searched for: “strain
strain
1. An intense or violent exertion.
2. An injury to a muscle (often caused by overuse) which results in swelling and pain.
3. In psychology, nervousness resulting from mental stress.
4. To pull at or push against something; especially, an obstacle or restraint, with great force or violence; such as, the dog was straining at the leash.
5. To make something seem barely adequate to meet the demands placed on it.
(a journal entry about special topics regarding "brain strain" and "hypersomnia")
Word Entries containing the term: “strain
electrostriction, electrostrictive strain
1. The classic deforming of a dielectric material when it is stressed by an electric field.
2. A form of elastic deformation of a dielectric induced by an electric field, associated with those components of strain that are independent of reversal of field direction, in contrast to the piezoelectric effect.
3. The change in dimensions which occurs in some dielectric materials when they are placed in an electric field.
4. An activity similar to piezoelectricity, but electrostrictive ceramics expand according to the square of the voltage whereas piezoelectric materials expand linearly.

Electrostrictive materials present less hysteresis (delayed response) than piezoelectric materials, but they are difficult to use at very low voltages.

This entry is located in the following unit: electro-, electr-, electri- (page 86)