J. P. Den Hartog: The Reprint EngineerJ. P. Den Hartog (1901–1989), who taught for most of his career at MIT, was one of the founders of the Dover reprint program in engineering. As the author of several books that Dover reprinted and still has in print, and as an advisor from the 1950s until just a few years before his death in 1989, Professor Den Hartog gave invaluable advice concerning books of lasting interest and importance in his field. Not many books in engineering have a productive shelf life spanning several decades. Among the exceptions are these four books of Professor Den Hartog, which Dover reprinted and occasionally revised in later printings from 1961 through 1987: Mechanics, 1961, Strength of Materials, 1961, Mechanical Vibrations, 1985, and Advanced Strength of Materials, 1987. Still widely read and cited by authors in these areas, Den Hartog's books are a tribute to his gift for exposition and clarity. The J. P. Den Hartog Award, established in 1987, is presented in recognition of lifetime contributions to the teaching and practice of vibration engineering.

• PREFACECHAPTER I-DISCRETE COPLANAR FORCES1. Introduction2. Forces3. Parallelogram of Forces4. Cartesian ComponentsCHAPTER II-CONDITIONS OF EQUILIBRIUM5. Moments6. Couples7. Equations of Equilibrium8. ApplicationsCHAPTER III-DISTRIBUTED FORCES9. Parallel Forces10. Centers of Gravity11. Distributed Loadings12. HydrostaticsCHAPTER IV-TRUSSES AND CABLES13. Method of Sections14. Method of Joints15. Funicular Polygons16. Uniformity Loaded CablesCHAPTER V-BEAMS17. Bending Moments in Beams18. Distributed Beam LoadingsCHAPTER VI-FRICTION19. Definition20. ApplicationsCHAPTER VII-SPACE FORCES21. Composition of Forces and Couples22. Conditions of Equilibrium23. Applications24. Space Frames25. Straight and Curved BeansCHAPTER VIII-THE METHOD OF WORK26. A Single Rigid Body27. Systems of Bodies28. Applications29. Stability of EquilibriumCHAPTER IX-KINEMATICS OF A POINT30. Rectilinear and Angular Motion31. Motion in Space32. ApplicationsCHAPTER X-DYNAMICS OF A PARTICLE33. Newton's Laws34. Rectilinear Motion of a Particle35. Curvilinear Motion of a Particle36. Systems of Two ParticlesCHAPTER XI-KINEMATICS OF PLANE MOTION37. Velocities38. AccelerationsCHAPTER XII-MOMENTS OF INERTIA39. The Principle of d'Alembert40. General Properties41. Specific ExamplesCHAPTER XIII-DYNAMICS OF PLANE MOTION42. Rotation about a Fixed Axis43. Examples of Fixed-axis Rotation44. General Motion in a Plane45. Examples on General Plane MotionCHAPTER XIV-WORK AND ENERGY46 Kinetic Energy of a Particle47. Potential Energy; Efficiency; Power48. Energy of Plane Bodies49. ApplicationsCHAPTER XV-IMPULSE AND MOMENTUM50. Linear Momentum51. Angular Momentum52. Applications53. ImpactCHAPTER XVI-RELATIVE MOTION54. Introduction55. Non-rotating Vehicles56. Rotating Vehicles; Coriolis's Law57. ApplicationsCHAPTER XVII-GYROSCOPES58. Theorems on Rotation in Space59. Discussion of the Theorems60. The Principle Theorem of the Gyroscope61. Applications62. The Gyroscopic Ship's CompassPROBLEMSANSWERS TO PROBLEMSLIST OF EQUATIONSINDEX