This text investigates the fundamental mathematical principles governing the deformation of materials beyond their elastic limit. Rodney Hill, a prominent authority in solid mechanics, constructs a rigorous framework that bridges the gap between theoretical continuum mechanics and practical engineering applications. The book systematically derives the governing equations for plastic flow, providing a comprehensive analytical foundation for understanding stress-strain relationships in metals and other ductile materials.

Experts widely recognize this work as a foundational text in the field of continuum mechanics. Readers frequently note the high level of mathematical rigor and the density of the derivations, which serve as a primary reference for researchers and advanced students in mechanical engineering.