Tutorial Chelyabinsk : ChGAA, 2011. 524 s. The manual corresponds to the state educational standard of the discipline "Resistance of materials" for the preparation of bachelors in the areas of 110800 - "Agroengineering" and 190100 - "Land transport technological complexes" . Methods of creating computational models of bodies and systems of bodies are presented, information is provided on the physical and mechanical properties of materials, including soil, and issues of calculating stresses and deformations during stretching, shearing, torsion and bending of straight bars are highlighted .. The theoretical material is illustrated by examples of stress and deformation calculations in MathCAD, SCAD, and MCS. software products. Patran-Nastran. On the example of SCAD and MCS. Patran-Nastran implements the idea of using already at junior courses modern design and computing complexes used in engineering practice for calculations of elements of agricultural machinery. At the end of each section there are questions for self-examination and questions found in the tickets of the exam. The training manual is intended for students, graduate students and engineering workers of the agro-industrial complex .