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Machine Design
Machine Design
Design of machine elements: shafts, gears, bearings, fasteners.
Chapters
20 chapters · 20 problem sets
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1
Introduction to Mechanical Engineering Design
What design is, how the design process flows, and the core quantitative tools — design factor, factor of safety, reliability, tolerances, and units…
Problems
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2
Materials
How material strength and stiffness are measured and described statistically, how cold work, hardness, impact, and temperature change them, and how…
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3
Load and Stress Analysis
From free-body diagrams and beam diagrams to the full toolbox of stress analysis: plane-stress transformation and Mohr's circle, bending and transv…
Problems
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4
Deflection and Stiffness
Spring rates and the deflection of bars, shafts, and beams — by direct integration, superposition, singularity functions, and the energy method of…
Problems
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5
Failures Resulting from Static Loading
How to predict static failure from limited material data: the yield criteria for ductile metals (maximum shear stress, distortion energy, Coulomb-M…
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6
Fatigue Failure Resulting from Variable Loading
The complete stress-life workflow for cyclic loading: the S-N diagram and endurance limit, Marin modifying factors, fatigue notch sensitivity, and…
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7
Shafts and Shaft Components
Applying the fatigue and deflection tools of earlier chapters to the rotating shaft: material choice and layout, the distortion-energy design equat…
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8
Screws, Fasteners, and the Design of Nonpermanent Joints
Thread geometry and the mechanics of power screws, then the complete analysis of bolted joints: fastener and member stiffness, the joint stiffness…
Problems
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9
Welding, Bonding, and the Design of Permanent Joints
Analysis and design of welded connections: the throat-shear model for butt and fillet welds, the treat-the-weld-as-a-line method for joints in tors…
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10
Mechanical Springs
Helical compression and extension springs from first principles: shear stress with curvature correction, spring rate by Castigliano, end styles and…
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11
Rolling-Contact Bearings
Selecting catalog bearings from load, life, and reliability requirements: the load-life power law, the Weibull reliability model, the master catalo…
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12
Lubrication and Journal Bearings
Hydrodynamic lubrication from viscosity to design: Newton's viscous law, Petroff's friction equation, the Sommerfeld bearing characteristic number,…
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13
Gears — General
The geometry and kinematics of gearing: tooth nomenclature, the involute profile and the law of conjugate action, contact ratio and interference, t…
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14
Spur and Helical Gears
Strength-based gear design: the Lewis bending equation and its evolution into the AGMA bending and contact-stress methodology, the full set of modi…
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15
Bevel and Worm Gears
Extending the AGMA strength methodology to the harder cases: straight-bevel gear bending and contact stresses with their special factors, the worm-…
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16
Clutches, Brakes, Couplings, and Flywheels
Devices that start, stop, store, and smooth rotation: the static analysis of friction brakes and clutches (rim, band, disk, cone), the uniform-wear…
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17
Flexible Mechanical Elements
Belts, chains, and wire rope for transmitting power over distance: the tension-ratio mechanics of flat and V-belt drives with centrifugal effects,…
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18
Power Transmission Case Study
Integrating the whole book into one design: a double-reduction gearbox worked from power and torque requirements through gear specification, shaft…
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19
Finite-Element Analysis
A conceptual introduction to FEA for the designer: how the method discretizes a structure into elements and solves the assembled stiffness equation…
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20
Geometric Dimensioning and Tolerancing
The symbolic language (ASME Y14.5) that controls not just size but the location, orientation, and form of part features: datums and the datum refer…
Problems
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© 2026 MechForge — Engineering Education Platform · Instructor: Eng. Yousef