首页|Self-Affine Crack Pattern in Filter Paper Sheets
Self-Affine Crack Pattern in Filter Paper Sheets
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In this work the self-affine crack pattern in Filter Paper sheets is studied. This paper has a well-defined anisotropy of mechanical properties associated with visible preferable orientation of fibers in the machine direction. Fracture behavior is in essence brittle, the rupture lines have self-affine invariance, and the stresses ahead of the straight notch follow a power-law behavior. The roughness exponent value is of H = 0.50 ±0.01, different from the suggested universal value H = 0.8. The classical theory has demonstrated that, in materials such as metal, there is a relationship between the size and the starting crack stress, which does not happen in this material. The tests show that the starting crack stress from stress-strain behavior curves remains stable for the different specimen sizes λw and crack length size. Moreover, different types of geometric groove, circular and linear, and without a crack, were tested and show almost the same behavior.
fracturefractalself-affine crack
C. A. Mora Santos、M. del R. Rivera Martinez、O. Susarrey Huerta、A. Balankin、M. A. Mendoza Nunez
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Instituto Politecnico Nacional, Section de Estudios de Posgrado e Investigation ESIME - Zacatenco Unidad Profesional 'Adolfo Lopez Mateos', Av. Politecnico S/N, Col. Lindavista, Edificio 5, 3er Piso, C.P. 07738. (55) 5729-6000 Ext. 54748 6 54768, Mexico, D.F.
Instituto Politecnico Nacional, ESIME - Culhuacan, Av. Santa Ana No. 1000, Col. San Francisco Culhuacan, Del. Coyoacan, C.P. 04430, Mexico, D. F.
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NSTL
Trans Tech Publications Ltd
