This book is a collection of papers presented at the IX International Conference on Topical Problems of Continuum Mechanics, September 22&26, Tsaghkadzor, Armenia. The conference topics are very broad: General problems, contact mechanics, mechanics of growing solids, mechanics of technological processes, mechanics of additive manufacturing, thin-walled structures, elasticity and viscoelasticity, plasticity, tribology, fracture mechanics, coupled fields in solids, composites, soil mechanics, fluid mechanics, wave motion, robotics, optimal design and control theory, mechanics of nano-systems, structural mechanics, biomechanics, hydraulics and hydraulic facilities, experimental mechanics.