Stress Distribution along the Crack in Cracked Fiberconcrete Beam Subjected to Bending

Riga Technical University 53rd International Scientific Conference: Dedicated to the 150th Anniversary and the 1st Congress of World Engineers and Riga Polytechnical Institute / RTU Alumni: Digest 2012
Andrejs Krasņikovs, Artūrs Mačanovskis, Vitālijs Lūsis, Edgars Mačanovskis

Usually fibers are homogeneously distributed in concrete body having arbitrary spatial orientations [1, 2]. Macro crack propagation in mechanically loaded steel fiber reinforced concrete is characterized by fibers bridging the crack, providing resistance to its opening. Suppose about homogeneous distribution of spatially arbitrary oriented fibers in a volume is leading to homogeneous spatially arbitrary distributed fibers orientation on the surface of the crack. At the same time is obvious, when macro crack is cutting bended beam orthogonal crossection, fibers located close to a neutral axis are loaded very weak or not loaded at all (stretching stress is equal to zero on the neutral axis and is maximal on the outer surface of the beam).

Atslēgas vārdi
steel fiber, concrete, beam, neutral axis
Hipersaite
http://alephfiles.rtu.lv/TUA01/000036125_e.pdf#page=380

Krasņikovs, A., Mačanovskis, A., Lūsis, V., Mačanovskis, E. Stress Distribution along the Crack in Cracked Fiberconcrete Beam Subjected to Bending. No: Riga Technical University 53rd International Scientific Conference: Dedicated to the 150th Anniversary and the 1st Congress of World Engineers and Riga Polytechnical Institute / RTU Alumni: Digest, Latvija, Riga, 11.-12. oktobris, 2012. Riga: RTU, 2012, 380.-380.lpp. ISBN 978-9934-10-360-5.

Publikācijas valoda
English (en)