Evaluation of Cumulative Damage of RC Members under Repeated Impact Loading

Abstract:

In the civil and structural engineering field, there are so many problems regarding act of impact loading against some structures due to natural disaster. So it is important to evaluate the damage condition of them after impact loading, and to estimate the residual performance of them. This study is focused on a reinforced concrete (herein after called RC) structure such as caisson breakwater and rock-shed. In order to quantitatively evaluate the dynamic behavior and cumulative damage of RC members under low-velocity single and repeated impact loading, we conducted numerical approach by using the theory of Continuum Damage Mechanics (herein after called CDM). At the result, we clarified not only impact behavior of the members but also the relationship between cumulative kinetic energy of repeated impact loading and cumulative damage of the members. In addition, applicability limit of our model based on scalar damage modeling was clarified.

• Periodical: Applied Mechanics and Materials (Volume 784)
• Pages: 500-507
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.784.500
• Online since: August 2015
• Authors: Hiroki Tamai*, Yoshimi Sonoda
• Keywords: Cumulative Damage, FEM, RC Member, Repeated Impact Loading

References

[1] JSCE, Practical Methods for Impact Test and Analysis, Structural Engineering Series 15, 2004. [In Japanese].

[2] Hiroki, T., Yoshimi, S., A numerical study on evaluation of residual strength of RC member under repeated impact load, Journal of JSCE, JSCE, 2008, Vol. 64, No. 4, pp.915-925. [In Japanese].

DOI: 10.2208/jsceja.64.915

[3] Hiroki, T., Yoshimi, S., Numerical studies on cumulative damage of RC members under repeated impact loading, Journal of Applied Mechanics and Materials, 2011, Vol. 82, pp.320-325.

DOI: 10.4028/www.scientific.net/amm.82.320

[4] Mitsuyasu, I., Taku, M., Yuichiro, K., Structural behavior of reinforced concrete slabs subjected to repeated impact loads, Technical note of the port and airport research institute No. 1216 [In Japanese].

[5] L.I. Knab and J.R. Clifton: Cumulative Damage of Reinforced Concrete Subjected to Repeated Impact, Cement and Concrete Research, Vol. 12, pp.359-370, (1982).

DOI: 10.1016/0008-8846(82)90084-9

[6] Lemaitre, J., A first course on damage mechanics, Springer Verlag, (1992).

[7] JSMS, Handbook on Fatigue Testing of Metal Materials, Yokendo, 1978. [In Japanese].

[8] Miner, A. M., Cumulative damage in fatigue, Journal of Applied Mechanics, 1945, pp. A159-164.

[9] Kishi, N., Mikami, H., Matsuoka, G, K., Ando, T., An Empirical Impact Resistant Design Formula of RC Beams with Statically Bending Failure Mode, Journal of JSCE, JSCE, 2000, No. 647/I-51, pp.177-190. [In Japanese].

DOI: 10.2208/jscej.2000.647_177