Chaotic Characteristic Analysis of Concrete Fracture System Based on Lyapunov Exponent Stability Criterion

Article Preview

Abstract:

According to the research on whole curves of strain-stress of concrete materials, the paper illustrates in evidence features of stages and shows that the discrete feature of curve often occurs in strain-softening stage. After chaotic dynamic analysis of testing datas, it presents that system of whole process of strain-stress evolves from ordered steady state to low chaotic state and then to high chaotic state along with increase of compressive strength. The linear relationship of strain-stress grows evident and the system evolves from strong ordered steady state to low chaos state. The strain-stress system before compressive strength peak is basically in weak chaotic state. Theis proposed to be the stability criterion of concrete features in different stress stages, and the is regarded as the representative value of the system stability degree. The calculation of example shows that the stability criterion definited by the proposed method is consistent with the actural situation.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1105-1109

Citation:

Online since:

September 2013

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] MA Hui-qun, SUN Xiu-ling, CAO Sheng-le, ZHANG Li-jin. Chaos-forecast based on index of Lyapunov and its application in hydrology [J]. ShangDong Science, 2006, (19)4: 15-18.

Google Scholar

[2] Sivakumar B, Liong S Y, Liaw C Y, et al. Evidence of chaotic behavior in Singpore rainfall. Journal of the American Water Re-sources Association, 1998: 301~310.

DOI: 10.1111/j.1752-1688.1998.tb04136.x

Google Scholar

[3] Song Yu, Chen Jia-jun, Sun Xiong. Chaotic analysis of groundwater time series [J]. Hydrological engineering geology , 2004, (1): 14~18.

Google Scholar

[4] Sheng zhao-han, Ma jun-hai. Nonlinear Dynamic System Analysis Introduction [M]. Beijing: Science Press, (2001).

Google Scholar

[5] Zhou ling-yun, Wang rei-li, Wu guang-min. Nonlinear Physics Theory and Application [M]. Beijing: Science Press, (2000).

Google Scholar

[6] Lu tong-xing. Nonlinear Physics Conspectus [M]. Hefei: China Technology University Press, (2002).

Google Scholar

[7] Tang chun-an, Zhu wang-cheng. Concrete damage and fracture—Numerical test [M]. Beijing: Science Press, (2003).

Google Scholar