Title:
Study of Concrete Cracking and Bond Using a Dstributed Discrete Crack Finite Element Model
Author(s):
Budan Yao and D. W. Murray
Publication:
Materials Journal
Volume:
92
Issue:
1
Appears on pages(s):
93-104
Keywords:
bonding; concretes; cracking (fracturing); finite element method; tension; Materials Research
DOI:
10.14359/1419
Date:
1/1/1995
Abstract:
An approach is proposed for modeling distributed discrete concrete cracking to simulate tension-pull tests. The finite element model explicitly includes lugs on the surface of reinforcing bars as solid elements. Aspects of the behavior previously recorded in tests have been compared with results of these finite element simulations. Discrete cracking, longitudinal splitting cracking, interface behavior, and local crushing are identified, and progression of these mechanisms at different stages during the loading history is represented. Bond stresses and bond slip are evaluated within intervals referenced to the position of the lug on the reinforcing surface. The correlation between splitting mechanisms and bond variables has been examined.