Damage-resistant structure

The damage-resistant structure designing against impact and fatigue... 

Ion-beam thinning Universally applicable good for two-phase materials and chemically resistant materials large thin areas reproducible Slow, ion-beam damage and structural alterations often possible... 

Prevention, detection and mitigation of sodium leaks, improved resistance of nuclear systems to fires and choice of concrete for minimisation of interactions remain important directions for safety research. In France a new aluminous concrete which does not interact with sodium has been proposed. The EFR (European fast reactor) anchored safety vessel option was tested with this concrete. There is a need to continue the R D on sodium-resistant concrete to minimise damage to structures in the event of sodium leaks. 

Incidents of sodium leak show need for greater care in auxiliary sodium circuits to minimise failure by thermal striping. There is a need to develop sodium resistant concrete to minimise damages to structures in case of sodium leaks. 

Zhou, G. (1998) The use of experimentally-determined impact force as a damage measure in impact damage resistance and tolerance of composite structures. Composite Structures, 42, 375-382. 

Peijs A, Venderbosch RW, Lemstra PJ, Hybrid composites based on polyethylene and carbon-fibres, 3. Impact resistant structural composites through damage management, Composites, 21(6), 522-530, 1990. 

The potential of nanoparticles for the damage resistance of polymers enhancement depend on several factors such as aspect ratio [94], hardness [95] and shape [97] as the nanoparticles structural parameters, which should be considered along with the morphological parameters like orientation [94], clustering [95] and weight content [94-97]. 

Besides reinforcement for rubber, the principal functions that carbon black imparts to a compoimd material are color, ultraviolet damage resistance, electrical conductivity, nondegradation of polymer physical properties, and ease of dispersion. The carbon blacks used for these purposes are classified as special-grade blacks. Smaller volume applications exploit other principal attributes, such as chemical inertness, thermal stability, and an open porous structure. The secondary attributes include chemical and physical purity, low affinity for water adsorption, and ease of transportation and handling. 

The wear reasons of main pipelines in hot air stove are poor thermal damage resistance, loose structure and small wedge degree of corundum-mullite based bricks in working layer, leading to the deformation, rupture and brick drop. 

Resist minor and moderate levels of earthquake ground motion without damage to structural elements, nonstmctural components, or building contents... 

---