Does the theories of failure used for ductile materials

In engineering, failure of materials can be classified as either brittle failure or ductile failure. These materials exhibit different modes of failure which is further dependent on the type of loading either static or dynamic. For brittle materials there is a sudden failure once a material is subjected to a large component of the load, thus there is no yielding before the material fails. Examples of brittle materials include ceramics and some polymers. In ductile materials, failure occurs in a systematic manner due to yield. Yielding refers to the situation where a material has to undergo plastic deformation in preparation for the occurrence of a failure. Examples of ductile materials include most metals. Usually, for brittle materials where ductility is less than 5%, failure is limited by the tensile strengths of the material.

In engineering, failure of materials can be classified as either brittle failure or ductile failure. These materials exhibit different modes of failure which is further dependent on the type of loading either static or dynamic. For brittle materials there is a sudden failure once a material is subjected to a large component of the load, thus there is no yielding before the material fails. Examples of brittle materials include ceramics and some polymers. In ductile materials, failure occurs in a systematic manner due to yield. Yielding refers to the situation where a material has to undergo plastic deformation in preparation for the occurrence of a failure. Examples of ductile materials include most metals. Usually, for brittle materials where ductility is less than 5%, failure is limited by the tensile strengths of the material.