The best reference on stress analysis ever published--now bigger and better than ever! Roark's Formulas For Stress and strain, Sixth Edition. Engineers the world over have used Roark's formulas for fast, superior stress analysis in engineering design. The sixth edition has it all--hundreds of valuable formulas and new data on curved beams, shell, and planes areas. It will save you hours of valuable time and money every time you design and analyze the physical and environmental stresses of structural components. With Roark, you don't have to resort to costly and time-consuming numerical analysis. You'll be able to quickly and easily apply formulas for shells, plates, beams, bars, columns, and planes to verify the accuracy and reliability of their design.