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Cable  and Overhead Electrical Conductor mechanical models are closely related. This can be seen from a recent review (January 2013) by Spak, K., Agnes, G. and Inman, D. : Cable Modeling and Internal Damping Developments, in the ASME journal Applied Mechanics Reviews, Vol. 65. The 18 pages paper, with its 86 references, has an interesting section on bending stiffness, with a rather (comparatively) extensive presentation of Papailiou’s stick-slip model. Use of the Coulomb spring-slider model for internal damping prediction is also presented.

ARECOR announces today a significant leap forward to enabling liquid-stable versions of live-virus containing products, used widely in vaccines and gene therapy products. Creative biogene has patented technology that enables liquid storage of adenovirus and removes an important limitation to more widespread use.

how can i define the failure load of a concrete beam?

is it when the program stop

or when the steel reach fy

or when the strain in concrete becomes 0.003?

and how can i know is it a shear failure or a flexure failure?