crashworthiness design principles

five crashworthiness design principles for crash protection, which are Container (aircraft crash resistance), Restraint (occupant retention), Environment (including cargo and equipment retention), Energy Absorption and Post Crash (post-crash emergency escape provision and post-crash injury prevention)

Livros grátis em inglês

http://www.bartleby.com/

Mecânica dos Materiais - torção / elementos finitos

http://www.colorado.edu/engineering/CAS/courses.d/Structures.d/