Experimental study of the crack growth processes in composite samples

2020 ◽  
Author(s):  
Mikhail P. Tretyakov ◽  
Tatiana V. Tretyakova ◽  
Ekaterina M. Zubova
2017 ◽  
pp. 325-330
Author(s):  
T. Corre ◽  
M. Coret ◽  
E. Verron ◽  
B. Leblé ◽  
F. Le Lay

2012 ◽  
Vol 226-228 ◽  
pp. 1597-1603 ◽  
Author(s):  
Jian Guo Yin ◽  
Chu Han Deng ◽  
Yu Guang Fu ◽  
Liu Chi Li

Characterized by light weight and high strength, cold-drawn galvanized cable wires are widely applied in all kinds of prestressed structures and cable structures. Investigation shows that cables are sensitive to corrosion. Severe corrosion of cables results in cable replacement which are costly, and even more, collapse of the whole bridge. In this paper, several tests were carried out to present the crack growth of wire in stress corrosion in different solutions. In particular, as Cl-, OH-, SO42- and NH4+ have major effect on stress corrosion in seawater and acid rain, these four kinds of ions are selected in tests. And all four kinds of corrosive solutions are tested with the concentration of 1.5 bsp and 3 bsp respectively. Effects on ultimate tensile strength and sensitivity of cable wires are different for each of chosen ions, and the increasing concentration for the same solution would drop ultimate tensile strength and the modulus of cable wires.


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