MECHANICS OF MATERIALS 2 An Introduction to the Mechanics of Elastic and Plastic Deformation of Solids and Structural Materials THIRD EDITION E.J.HEARN PhD;BSc(Eng)Hons;CEng:FIMechE;FIProdE;FIDiagE University of Warwick United Kingdom BUTTERWORTH H EINEMAN NMECHANICS OF MATERIALS 2 An introduction to the Mechanics of Elastic and Plastic Deformation of Solids and Structural Materials THIRD EDITION E. J. HEARN PhD; BSc(Eng) Hons; CEng; FIMechE; FIProdE; FIDiagE University of Warwick United Kingdom la==-- EINEMANN