One material property that is widely used and recognized is the strength of a material. But what does the word "strength" mean? "Strength" can have many meanings, so let us take a closer look at what ...

Many complex fluids, such as surfactant mesophases, network forming polymers, emulsions etc. do not flow until the applied stress crosses a certain critical value, called the yield stress. Materials ...

The yield stress may depend on time, in such instances the stress ramp rate becomes more important. For cases like this a constant or a standard value is needed while comparing different samples.