Recent innovations in digital design and manufacturing of advanced materials and components have stimulated an important growth of rapid-prototyping technologies in modern industries. The Laser Engineered Net Shaping (LENS) is a particular example of these technologies that may create any kind of components from a 3D CAD solid model with high accuracy. One of its main advantages is the possibility of obtaining property gradients along the component due to different cooling rates. However, it is sometimes susceptible to pore formation. A mathematical plasticity-damage model was utilized to predict the mechanical behavior and life of components manufactured under the LENS process, considering certain levels of porosity, under different conditions of loading, temperature and strain rate to simulate real-life situations. These predictions were validated with real monotonic and cyclic tests performed in the laboratories, and later on applied to high-performance automotive components. This book covers the theory, calibration, simulations and validation of the model, and should be especially useful to researchers and professionals in the materials and components design industries.

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