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Fragmentation of Reinforced Concrete Slabs.

AD841792

Publication Date	1968
Personal Author	Barnett, R. L.; Hermann, P. C.
Page Count	93
Abstract	A reexamination of the blast effects literature from the point of view of fragmentation leads to the conclusion that reinforced concrete slabs do not constitute a significant source of debris in the postattack environment. Both the initial orientation and the self-adjusting geometry of slabs minimize their transverse loading. Also, the horizontal displacement of potential slab fragments tends to be small because of their high ballistic coefficients and/or high downward acting loading. Finally, the steel reinforcing bars tenaciously tie the various pieces of fractured slab to the supports and to each other even at pressure levels as high as 100 psi. (Author)
Keywords	Structural members Reinforced concrete Blast Fragmentation Fracture(Mechanics) Reinforcing materials Structural properties Structures Hazards Panels Walls Floors Roofs Debris Nuclear explosion damage Loads(Forces) Pressure Cracks Scattering Explosion effects Ballistic coefficients Secondary fragments Sizes(Dimensions) Slabs(Structural)
Source Agency	Non Paid Delimited ADS
NTIS Subject Category	79E - Detonations, Explosion Effects, & Ballistics 77D - Nuclear Explosions & Devices 50 - Civil Engineering 46E - Structural Mechanics 50C - Construction Equipment, Materials, & Supplies
Corporate Authors	Iit Research Inst Chicago Ill
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	197704

Fragmentation of Reinforced Concrete Slabs.

Fragmentation of Reinforced Concrete Slabs.
AD841792

Publication Date	1968
Personal Author	Barnett, R. L.; Hermann, P. C.
Page Count	93
Abstract	A reexamination of the blast effects literature from the point of view of fragmentation leads to the conclusion that reinforced concrete slabs do not constitute a significant source of debris in the postattack environment. Both the initial orientation and the self-adjusting geometry of slabs minimize their transverse loading. Also, the horizontal displacement of potential slab fragments tends to be small because of their high ballistic coefficients and/or high downward acting loading. Finally, the steel reinforcing bars tenaciously tie the various pieces of fractured slab to the supports and to each other even at pressure levels as high as 100 psi. (Author)
Keywords	Structural members Reinforced concrete Blast Fragmentation Fracture(Mechanics) Reinforcing materials Structural properties Structures Hazards Panels Walls Floors Roofs Debris Nuclear explosion damage Loads(Forces) Pressure Cracks Scattering Explosion effects Ballistic coefficients Secondary fragments Sizes(Dimensions) Slabs(Structural)
Source Agency	Non Paid Delimited ADS
NTIS Subject Category	79E - Detonations, Explosion Effects, & Ballistics 77D - Nuclear Explosions & Devices 50 - Civil Engineering 46E - Structural Mechanics 50C - Construction Equipment, Materials, & Supplies
Corporate Authors	Iit Research Inst Chicago Ill
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	197704