TABLE OF CONTENTS MECHANICS AND STRENGTH OF MATERIALS Machinery's Handbook, 31st Edition
BEAMS 256 Beam Calculations 256
SHAFTS
(Continued) 302
Critical Speed of Rotating Shafts Comparison of Hollow and Solid Shafting SPRINGS Shaft Couplings
302 303
Stresses and Deflections in Beams Rectangular Solid Beams Deflection of Beam Uniformly Loaded for Part of Its Length Round Solid Beams Bending Stress Due to an Oblique Transverse Force Beams of Uniform Strength Deflection as a Limiting Factor
268 268 269 270 270 273 274 277
304 Introduction to Spring Design 305 Spring Materials 305 Spring Steels in Wire Form 306 Alloy Spring Steels 306 Stainless Spring Steels 307 Copper-Base Spring Alloys 308 Nickel-Base Spring Alloys 309 Spring Stresses 309 Allowable Working Stresses 314 Endurance Limit for Materials 315 Stresses at Elevated Temperatures 316 Spring Design Data 316 Helical Compression Spring Design 320 Spring Characteristics 325 Extension Springs 327 Extension Spring Design 329 Tolerances for Compression and Extension Springs 331 Torsion Spring Design 338 Torsion Spring Characteristics 343 Torsion Spring Tolerances 344 Miscellaneous Springs 345 Moduli of Elasticity 345 Heat Treating Springs 348 Spring Failure 349 Music Wire DISC SPRINGS 350 Performance of Disc Springs 350 Nomenclature 350 Group Classification 351 Contact Surfaces 351 Materials 352 Stacking 354 Disc Spring Forces and Stresses 354 Force Generated Without Contact Surfaces 357 Force Generated with Contact Surfaces 357 Functional Stresses 358 Fatigue Life 361 Recommended Dimensional Characteristics 361 Example Applications
Curved Beams
Size of Rail to Carry a Load 278 Stresses Produced by Shocks 278 In Beams 279 In Helical Springs 280 Shocks from Bodies in Motion 280 Fatigue Stresses COLUMNS 281 Strength of Columns or Struts 281 Rankine or Gordon Formula 281 Straight-Line Formula 281 American Railway Formulas 282 Euler Formula 282 Eccentrically Loaded Columns 282 Machine Elements Subjected to Compressive Loads 285 American Institute of Steel Construction PLATES, SHELLS, AND CYLINDERS 288 Flat Stayed Surfaces 288 Strength and Deflection of Flat Plates 288 Square and Rectangular Flat Plates 290 Circular Flat Plates 290 Cylinders, Internal Pressure 291 Spherical Shells, Internal Pressure 293 Collapsing Pressure under External Pressures SHAFTS 295 Shaft Calculations 295 Torsional Strength of Shafting 297 Torsional Deflection, Circular Shafts 298 Linear Deflection of Shafting 299 Design of Transmission Shafting 301 Effect of Keyways 301 Formula for Brittle Materials
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