Numerical Study of a Panel with Big Grooves Subjected to In-Plane Tension

Abstract:

The purpose of the present study is to propose a new technical method for improving the fatigue life of a panel with big grooves by setting rounded transition structure and stress relief slots in the vicinity of it. The main idea of the method is to reduce the stress concentration at the edges of rounded transition structure. To confirm the effectiveness of the method, analyses were performed by using software for two-dimensional elastic problems based on the body-force method. The calculation results show that the existence of stress relief slots effectively reduced the stress concentration at the edges of rounded transition structure. A close distance between the rounded transition structure and the stress relief groove resulted in a little influence of stress concentration at the edge of rounded transition structure. Also, a lower stress concentration was obtained by increasing the diameter and numbers of stress relief grooves. Results prove the effectiveness and certain engineering practicability of this method. The method is helpful for structure design.

• Periodical: Advanced Materials Research (Volumes 102-104)
• Pages: 297-300
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.102-104.297
• Online since: March 2010
• Authors: Ning Huang, Ming Hui Huang, Li Hua Zhan
• Keywords: Finite Element Analysis (FEA), In-Plane Tension, Stress Concentration Factor (SCF), Stress Relief Slot

References

[1] S. M Li: Mechanical Fatigue and Reliable Design (Science Press, Beijing 2006).

[2] B.Y. Xu and J. X Wang: Elastic Mechanics (Tsinghua university Press, Beijing 2007).

[3] Y.M. Chen: Evaluating and Estimating the Fatigue Strength of the otch (Aviation Industry Press, Beijing 2005).

[4] Mechanical design manual council: Mechanical Design Manual (Mechanical industry press, Beijing 2007).

[5] G.J. Zhang and H.D. Li: Modern Components, Vol. 9 (2007), pp.102-103.

[6] E. Schnack and W. Weikl. Computer-aided Design, Vol. 34 (2002), pp.929-938.

[7] Z. Domazet: Eng Failure Anal, Vol. 3 (1996), pp.137-47.

[8] P.S. Song and Y.L. Shieh: Int J Fatigue, Vol. 26 (2004), pp.1333-1339.

[9] A. Murdani, C. Makabe, A. Saimoto, R. Kondo: Eng Failure Anal, Vol. 15 (2007), pp.302-310.

[10] Anggi Murdani, et al: Eng Failure Anal, Vol. 15 (2008), pp.810-819.

[11] R.E. Peterson: Stress concentration factors (Wiley, New York 1974).

[12] W.D. Pilkey: Peterson's stress concentration factors, 2nd ed. (John Wiley & Sons, New York 1997).

[13] H. H Chen: Examples of the finite element analysis of the teaching material by Marc (China Machine Industry Press, Beijing 2007).

[14] S.B. Thomas, M.J. Mhaiskar and R. Sethuraman: Theor Appl Fract Mech, Vol. 33( 2000), pp.73-81.