5th Mikkeli Computational Mechanics Workshop (CompMechWorkshop'2010) organized by Mikkeli University of Applied Sciences Research Centre YTI, Tampere University of Technology and the Computational Mechanics Laboratory (CompMechLab®, with Prof. Alexey Borovkov as its Head) of St. Petersburg State Polytechnical University was held from August 2nd till 6th, 2010. This Workshop is notable by its unique form. University specialists, experts from research and industrial companies and CompMechLab® employees are able to productively communicate at the Symposium, which motto is "СAD / FEA / CAE in Action!". 14 CompMechLab® employees assisted the organization and work of the Symposium.