Uniaxial compression strength versus hydrostatic / triaxial

[rollingstein]

For typical metals used in construction I've seen the compression strength being used in various calculations. Typically I assume this is the uniaxial compressive strength. i.e. Say in a UTM with the specimen laterally loaded.

Are there engineering situations where the hydrostatic compressive strength of materials is important? This strength seems much larger than the uniaxial strength & is tested in a setup where a piston & oil produce lateral uniform loadings on the test sample.

 

[Illmatic1]

Yes, the hydrostatic compressive strength of a material can be important in certain engineering applications. For example, when designing pressure vessels or tanks that contain fluids under high pressure, it is important to consider the hydrostatic compressive strength of the material in order to ensure that the tank does not fail under the pressure. Additionally, hydrostatic compressive strength can also be important when considering the design of foundations or other structures that are subjected to uniform loading or large, concentrated loads. In these cases, the hydrostatic compressive strength of the material can help to ensure that the structure is able to withstand the forces applied.