Shear Crack Propagation Theory (SCPT) – The mechanical solution to the riddle of shear in RC members without shear reinforcement

2020 ◽  
Vol 210 ◽  
pp. 110207 ◽  
Author(s):  
Martin Classen
Keyword(s):  
Crack Propagation ◽  
Shear Crack ◽  
Shear Reinforcement ◽  
Propagation Theory

scholarly journals Shear Response of Members without Shear Reinforcement—Experiments and Analysis Using Shear Crack Propagation Theory (SCPT)

2021 ◽  
Vol 11 (7) ◽  
pp. 3078
Author(s):  
Maximilian Schmidt ◽  
Philipp Schmidt ◽  
Sebastian Wanka ◽  
Martin Classen
Keyword(s):  
Crack Propagation ◽  
Shear Crack ◽  
Shear Capacity ◽  
Experimental Investigations ◽  
Shear Reinforcement ◽  
Propagation Theory ◽  
Ongoing Research ◽  
Shear Transfer ◽  
Loading Process ◽  
Concrete Members

The determination of the ultimate shear capacity and the identification of the corresponding load-carrying mechanisms of concrete members without shear reinforcement has been an ongoing research topic for over 100 years. Based on a full mechanical model, the Shear Crack Propagation Theory (SCPT) enables to analyze and understand the ever-changing interplay of crack propagation, evolution of stresses at the crack tip and in uncracked concrete parts, as well as the activation of shear transfer actions within the growing shear crack during the entire loading process. In this paper, selected experimental investigations for further validation of the SCPT are presented. These beam shear test results are then compared to the theoretical results emerging from the SCPT algorithm. Finally, the evolution of different shear transfer actions (e.g., aggregate interlock and dowel action) during the entire loading process is evaluated and discussed.

scholarly journals Punching strength of reinforced concrete flat slabs without shear reinforcement

2012 ◽  
Vol 5 (5) ◽  
pp. 659-691 ◽  
Author(s):  
P. V. P. Sacramento ◽  
M. P. Ferreira ◽  
D. R. C. Oliveira ◽  
G. S. S. A. Melo
Keyword(s):  
Reinforced Concrete ◽  
Shear Crack ◽  
Theoretical Method ◽  
Shear Reinforcement ◽  
Model Code ◽  
Flat Slabs ◽  
Codes Of Practice ◽  
Eurocode 2 ◽  
Model Code 2010 ◽  
Theoretical Results

Punching strength is a critical point in the design of flat slabs and due to the lack of a theoretical method capable of explaining this phenomenon, empirical formulations presented by codes of practice are still the most used method to check the bearing capacity of slab-column connections. This paper discusses relevant aspects of the development of flat slabs, the factors that influence the punching resistance of slabs without shear reinforcement and makes comparisons between the experimental results organized in a database with 74 slabs carefully selected with theoretical results using the recommendations of ACI 318, EUROCODE 2 and NBR 6118 and also through the Critical Shear Crack Theory, presented by Muttoni (2008) and incorporated the new fib Model Code (2010).

scholarly journals A Study of Shear Crack Propagation in Spring-loaded DCB Testing

1978 ◽  
Vol 64 (7) ◽  
pp. 937-946 ◽  
Author(s):  
Yoshiyuki KURITA ◽  
Toshiya AKIYAMA ◽  
Takahiro FUJITA ◽  
Fusao KOSHIGA
Keyword(s):  
Crack Propagation ◽  
Shear Crack

scholarly journals An influence of normal stress and pore pressure on the conditions and dynamics of shear crack propagation in brittle solids

2016 ◽  
Author(s):  
Evgeny V. Shilko ◽  
Sergey G. Psakhie ◽  
Valentin L. Popov
Keyword(s):  
Crack Propagation ◽  
Normal Stress ◽  
Pore Pressure ◽  
Shear Crack ◽  
Brittle Solids

Shear crack propagation in the residual stress field

1973 ◽  
Vol 11 (3) ◽  
pp. 463-465
Author(s):  
V. V. Dudukalenko ◽  
N. B. Romalis
Keyword(s):  
Residual Stress ◽  
Stress Field ◽  
Crack Propagation ◽  
Shear Crack ◽  
Residual Stress Field

Stability of intersonic shear crack propagation

2003 ◽  
Vol 51 (11-12) ◽  
pp. 1957-1970 ◽  
Author(s):  
O. Obrezanova ◽  
J.R. Willis
Keyword(s):  
Crack Propagation ◽  
Shear Crack

A Study of Shear Crack Propagation in Gas-Pressurized Pipelines

1982 ◽  
Vol 104 (4) ◽  
pp. 338-343 ◽  
Author(s):  
E. Sugie ◽  
M. Matsuoka ◽  
T. Akiyama ◽  
H. Mimura ◽  
Y. Kawaguchi
Keyword(s):  
Crack Propagation ◽  
Crack Velocity ◽  
Shear Crack ◽  
Controlled Rolling ◽  
Full Scale ◽  
Pipe Length ◽  
On Line ◽  
Pressurized Pipelines ◽  
Quenching And Tempering ◽  
Crack Propagation And Arrest

Full-scale burst tests were carried out five times on line pipes of 48 in. o.d. × 0.720 in. w.t., Grad. X-70 manufactured by the controlled rolling and the quenching and tempering processes. It was found that the critical notch ductility for arresting a shear crack depends on the pipe length within which the crack is to be arrested. This result is well explained by solving the equation which governs change of crack velocity. The behavior of shear crack propagation and arrest can be well analyzed regardless of the existence or nonexistence of separation by Charpy energy.

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