Life Prediction of LENS Materials with Finite Element Analysis : Application of a Mathematical Plasticity-Damage Model to Predict Life on Monotonic and Cyclic Loading of LENS Manufactured Materials

ISBN-13: 9783639108354 / Angielski / Miękka / 2009 / 72 str.

Rodolfo Gomez

Opis

Recent innovations in digital design andmanufacturing of advanced materials and componentshave stimulated an important growth ofrapid-prototyping technologies in modern industries.The Laser Engineered Net Shaping (LENS) is aparticular example of these technologies that maycreate any kind of components from a 3D CAD solidmodel with high accuracy. One of its main advantagesis the possibility of obtaining property gradientsalong the component due to different cooling rates.However, it is sometimes susceptible to pore formation.A mathematical plasticity-damage model was utilizedto predict the mechanical behavior and life ofcomponents manufactured under the LENS process,considering certain levels of porosity, underdifferent conditions of loading, temperature andstrain rate to simulate real-life situations. Thesepredictions were validated with real monotonic andcyclic tests performed in the laboratories, and lateron applied to high-performance automotive components.This book covers the theory, calibration, simulationsand validation of the model, and should be especiallyuseful to researchers and professionals in thematerials and components design industries.

O autorze

Rodolfo A. Gomez G., MSc: Masters Degree in Mechanical Engineering
at Mississippi State University, USA. Research Engineer in New
Materials and Emerging Technologies. BSc: Bachelors Degree in
Mechanical Engineering at Universidad Simón Bolívar, Venezuela.
Racing Car Prototypes Designer and Developer.