Gernot (Emeritus Professor, Institute for Structural Analysis, Graz University of Technology, Austria and Conjoint Professor, Centre for Geotechnical and Materials Modelling) Beer 
Advanced Numerical Simulation Methods [PDF ebook] 
From CAD Data Directly to Simulation Results

This entertaining introduction to advanced numerical modeling aims to lead the reader on a journey towards theholy grail of numerical simulation, i.e. one without the requirement of mesh generation, that takes data directly from CAD programs. This hands-on book emphasizes implementation and examples of programming in a higher level language are given. Written for users of simulation software, so they can understand the benefits of this new technology and demand progress from a somewhat conservative industry. Written for software developers, so they can see that this is a technology with a big future and written for researchers, in the hope that it will attract more people to work in this field.