Machine Design

How-to, in-depth technical articles for machine design engineers


How OEM's can make their parts better, faster, and more efficient.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

more free magazines
Ranges of Applicability

Category Parameter Effective Regime
Linear Elastic Fracture Mechanics (LEFM) Stress Intensity Factor, K, or
Stress Release Rate,

Elastic Plastic Fracture Mechanics (EPFM) The J Integral or
Crack Tip Opening Displacement (CTOD)