An Analysis Of Stress Intensity Factor Due To Normal Stress For A Cracked Plate Reinforced With A Sheet By Seam Welding

• Autorzy: Kim O.-H. , Kim Y. C.

Identyfikatory

DOI

10.1515/amm-2015-0149

Warianty tytułu

PL

Analiza współczynnika intensywności naprężeń wynikających z prostopadłego naprężenia dla pękniętej płyty wzmocnionej płytą przyspawaną szwem

• Języki publikacji: EN

Abstrakty

EN

It is essential in damage tolerance design to determine the stress intensity factor theoretically. The stress intensity factor for a cracked plate that is reinforced with a sheet by seam welding is determined theoretically and plotted as function of the seam welding location and stiffness ratio. The singular integral equation is derived based on the compatibility condition between the cracked plate and the reinforcement plate, and it is solved by means of Erdogan and Gupta‘s method. The theory is verified by comparing the results of the present analysis with those of a numerical analysis. The results from the present analysis show that the reinforcement effect improves as the welding line is situated closer to the crack and as the stiffness ratio of the cracked plate and the reinforcement plate increases.

Słowa kluczowe

EN

stress intensity factor; seam welding; singular integral equation; reinforcement effect

PL

współczynnik intensywności naprężeń; spawanie; efekt wzmocnienia

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1441--1444
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Kim O.-H.

• Division of Mechanical & Automotive Engineering, Ufict, Kongju National University, 1223-24 Cheonandaero Cheonan-Si Chungnam-Do, 331-717, Korea

autor

Kim Y. C.

• Division of Mechanical & Automotive Engineering, Ufict, Kongju National University, 1223-24 Cheonandaero Cheonan-Si Chungnam-Do, 331-717, Korea

Bibliografia

• [1] R. Greif, J. L. Sanders, Jr. The effect of a stringer on the stress in a cracked sheet. Trans. ASME, J. Appl. Mech. 32(1), 59-66 (1965).
• [2] A. F. Liu, J. C. Ekvall, Material toughness and residual strength of damage tolerant aircraft structures. Damage tolerance in aircraft structures, ASTM STP 486, 98-121 (1971).
• [3] H. P. Kan, M. M. Ratwani, Nonlinear adhesive behavior effects in cracked metal to composite bonded structures. Engng. Fract. Mech. 15, 123-130 (1981).
• [4] MIL-HDBK-5C, Metallurgical joints, USAF (1976).
• [5] Ok Hwan Kim, Stress intensity factor for a cracked sheet reinforced with a plate by spot welding. Ph. D Thesis, Yonsei University, Seoul Korea, 1995, February.
• [6] F. Erdogan, G. D. Gupta, On the numerical solution of singular integral equations. Q. Appl. Math. 29, 525-534 (1972).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.