Constrains on stresses in isotropic homogeneous infinite half-spaces being in welded contact: 2D anti-plane and in-plane cases

• Autorzy: Rybicki K. R. , Yamashita T.
• Języki publikacji: EN

Abstrakty

EN

Formulas are derived for two-dimensional problems relating stresses across a plane boundary that divides infinite homogeneous half-spaces being in welded con-tact. The calculations are made for both anti-plane and in-plane stress cases. The results obtained for the former case that involve only two stress components are useful in the analysis of fracture of strike-slip type. For the in-plane case, the relations that link stresses in one half-space with the corresponding homogeneous stresses in the other half-space are presented for arbitrarily oriented shear and normal stresses and for the center of compression (dilatation). The above relations provide a compete set of expressions that, among other things, make it possible to analyze stresses involved in faulting of deep-slip type in an inhomogeneous medium. The quantitative preliminary evaluations based on the results obtained demonstrate the great role of low rigidity media in fracture processes of all kinds within the Earth's crust.

Słowa kluczowe

EN

stresses; anti-plane stress; in-plane stress; strike-slip faulting; dip-slip faulting

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2008
• Tom: Vol. 56, no. 2
• Strony: 286--292

Twórcy

autor

Rybicki K. R.

autor

Yamashita T.

• Instytut Geofizyki Polskiej Akademii Nauk ul. Ks. Janusza 64 01-452 Warszawa tel.: [phone],

Bibliografia

• Ben-Zion, Y., S. Katz, and P. Leary (1992), Joint inversion of fault zone and direct P arrivals for crustal structure near major faults, J. Geophys. Res. 97, 1943-1951.
• Fuis, G., W.J. Mooney, G. Healey, G. McMechan, and W. Lutter (1982), Crustal structure of the Imperial Valley region, The Imperial Valley, California, earthquake of October 15, 1979, U.S. Geol. Surv. Pap. 1254, 25-50.
• Jaeger, J.C., and N.G.W. Cook (1976), Fundamentals of Rocks Mechanics, Chapman and Hall, London.
• Maruyama, T. (1966), On two-dimensional elastic dislocations in infinite and semi-infinite medium, Bull. Earthq. Res. Inst. Univ. Tokyo 44, 811-871.
• Michael, A.J. (1988), Effects of three-dimensional velocity structure on the seismicity of the 1984 Morgan Hill, California, earthquake, Bull. Seismol. Soc. Am. 78, 1199-1221.
• Rybicki, K.R., and T. Yamashita (1998), Faulting in vertically inhomogeneous media and its geophysical implications, Geophys. Res. Lett. 25, 2893-2896.
• Rybicki, K.R., and T. Yamashita (2002), On faulting in inhomogeneous media, Geophys. Res. Lett. 29, 10, 1417, DOI: 10.1029/2002GL014672.