The registered users of iMechanica pass 1000 today
The number of registered iMechanicians has just passed 1000 today. iMechanica went "officially" online on 9 September 2006. See other numbers of iMechanica recorded today, and our evolving history.
The number of registered iMechanicians has just passed 1000 today. iMechanica went "officially" online on 9 September 2006. See other numbers of iMechanica recorded today, and our evolving history.
US National Aeronautics and Space Administration
British National Space Centre
European Space Agency
China National Space Administration (English) (Chinese)
National Space Development Agency of Japan
India Space Research Organisation
United Nations Office for Outer Space Affairs
This blog focuses on the behaviors of energetic materials (such as solid rocket propellants, high explosives), shock waves, and explosions. And also on the protections, from the design of protecting materials and structures.
Lecture notes:
The following is a link to a FEMA course
The following are links to the FEMA (Federal Emergency Management Agency) documents:
Mitigating the threat of terrorist attacks against high occupancy buildings is a challenging task.
Chapter 1: ASSET VALUE, THREAT/HAZARD, VULNERABILITY, AND RISK
This chapter presents several methodologies for architects and engineers to quantify risk and to identify the most effective mitigation measures to achieve a desired level of protection against terrorist attacks at an acceptable cost.
The slides for lecture 1 are attached.
16.223 Mechanics of Heterogeneous Materials
Course Description: Mechanical behavior of heterogeneous materials such as thin-film microelectromechanical systems (MEMS) materials and advanced filamentary composites, with particular emphasis on laminated structural configurations. Anisotropic and crystallographic elasticity formulations. Structure, properties and mechanics of constituents such as films, substrates, active materials, fibers, and matrices including nano- and micro-scale constituents. Effective properties from constituent properties. Classical laminated plate theory for modeling structural behavior including extrinsic and intrinsic strains and stresses such as environmental effects. Introduction to buckling of plates and nonlinear (deformations) plate theory. Other issues in modeling heterogeneous materials such as fracture/failure of laminated structures.
The conferences/seminars I attended that relate to the behaviour of energetic composite materials.
C. Eberl, D. S. Gianola, R. J. Thompson (in alphabetic order)
With this contribution we would like to point to a free MATLAB tool which uses digital image correlation and tracking techniques to measure strain from a series of digital images. The code can be found on the ‘MATLAB central file exchange’ as well as the documentation, example images and some slides. We use the code on a daily basis for micro- and nanoscale measurements and present it here to be used and further developed by the community. Since it was posted at the end of september the code is now ranked place one or two in google and has been downloaded about 1000 times.