Search results
Results from the WOW.Com Content Network
White etching cracks (WEC), or white structure flaking or brittle flaking, is a type of rolling contact fatigue (RCF) damage that can occur in bearing steels under certain conditions, such as hydrogen embrittlement, high stress, inadequate lubrication, and high temperature. WEC is characterised by the presence of white areas of microstructural ...
Residential building: 34 dead, 40 injured 1971: 2000 Commonwealth Avenue collapse: Boston, Massachusetts, US: Condominium building under construction: 4 dead, 30 injured 1971: South Bridge Koblenz, Rhineland-Palatinate, West Germany: Bridge under construction: 13 dead, 13 injured 1971: 1971 Certej dam failure: Certeju de Sus, Hunedoara County ...
Collapsed barn at Hörsne, Gotland, Sweden Building collapse due to snow weight. Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order to prevent failures in future designs.
The building was a steel-frame design, and the collapse was the first known example of the total progressive collapse of a steel-framed building. [ 3 ] On May 16, 1968, the 22-story Ronan Point apartment tower in West Ham , London suffered a fatal collapse of one of its corners because of a natural- gas explosion , which destroyed a load ...
mild steel cracks in the presence of alkali (e.g. boiler cracking and caustic stress corrosion cracking) and nitrates; copper alloys crack in ammoniacal solutions ( season cracking ); high-tensile steels have been known to crack in an unexpectedly brittle manner in a whole variety of aqueous environments, especially when chlorides are present.
Good morning, Chicago. Preservationists are seeking an eleventh-hour reprieve for a historic 152-year-old River North building facing imminent demolition. The three-and-a-half story brick and cast ...
Crack in a hardened steel due to hydrogen, observed by scanning electron microscopy (SEM).. Hydrogen embrittlement is a complex process involving a number of distinct contributing micro-mechanisms, not all of which need to be present.
Steel frame structure Rectangular steel frame, or "perimeter frame" of the Willis building (at right) contrasted against the diagrid frame at 30 St Mary Axe (at center), in London. Steel frame is a building technique with a " skeleton frame" of vertical steel columns and horizontal I-beams , constructed in a rectangular grid to support the ...