Experimental study of the distribution of plastic strains near a crack tip during static loading

1994 ◽  
Vol 30 (11) ◽  
pp. 892-897 ◽  
Author(s):  
A. A. Kaminskii ◽  
G. I. Usikova ◽  
E. A. Dmitrieva
Keyword(s):  
Experimental Study ◽  
Static Loading ◽  
Crack Tip ◽  
Plastic Strains

Experimental Study about Bearing Capacity and Deformation on Concrete Composite Slabs with Additional Bars

2013 ◽  
Vol 482 ◽  
pp. 7-10
Author(s):  
Jian Hua Cui ◽  
Chuan Yang Weng ◽  
Yun Lin Liu
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Failure Mode ◽  
Static Loading ◽  
Flexural Behavior ◽  
Flexural Properties ◽  
Effective Height ◽  
Composite Slabs

Through the experiments of four concrete composite slabs under static loading to compare their flexural properties (deflection, bearing capacity, failure mode), this paper discusses the influence of composite slabs flexural behavior on different length of additional bars and sectional effective height. The results showed that they will improve the bearing capacity effectively by reasonably increasing the sectional effective height and controlling the length of additional bars.

The influence of fiber-crack angle on the crack tip parameters in orthotropic materials

2016 ◽  
Vol 231 (3) ◽  
pp. 418-431 ◽  
Author(s):  
M Fakoor ◽  
R Rafiee ◽  
M Sheikhansari
Keyword(s):  
Experimental Study ◽  
Structural Design ◽  
Critical Angle ◽  
Design Procedure ◽  
Crack Tip ◽  
Maximum Load ◽  
Orthotropic Materials ◽  
Fiber Direction ◽  
Catastrophic Failure ◽  
Crack Angle

Identification of the critical angle between fiber and crack direction in orthotropic materials for avoiding catastrophic failure is necessary. Recognition of the optimum regions for creating notches in orthotropic materials for creation of maximum load-bearing capability is an important parameter in structural design. In this paper, the critical angles between crack and fiber direction are predicted, extracting crack tip parameters in orthotropic materials using stress series expansion and numerical method. The variations of crack tip parameters with respect to the angle between crack and fiber for modes I and II are presented. The presented functions for these variations can be used in the optimum design procedure of orthotropic structures. The obtained results are validated using experimental study.

scholarly journals NUMERICAL PHOTOMECHANICS: NUMERICAL PROCESSING OF PHOTOELASTICITY EXPERIMENTS AND ITS APPLICATION TO THE PROBLEMS OF FRACTURE MECHANICS PROBLEMS

2017 ◽  
Vol 19 (9.2) ◽  
pp. 63-73
Author(s):  
T.E. Gerasimova ◽  
P.N. Lomakov ◽  
L.V. Stepanova
Keyword(s):  
Experimental Study ◽  
Experimental Investigation ◽  
Asymptotic Expansion ◽  
Fracture Mechanics ◽  
Asymptotic Expansions ◽  
Strain State ◽  
Crack Tip ◽  
Displacement Fields ◽  
Photoelasticity Method ◽  
Stress And Displacement Fields

On the basis of photoelasticity method the experimental study of near crack tip stressed strain state in specimens under mixed loading conditions is performed. Carried out experimental investigation allows to obtain coefficients of full asymptotic expansions of stress and displacement fields in the vicinity of the crack tip and alos to find coefficients of highest approach in Williams full asymptotic expansion.

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