Numerical and Experimental Analysis of a Stress-Strain State of the Inclined Semi-Elliptical Surface Cracks
Abstract
Data of studying characteristics of linear and nonlinear fracture mechanics using numerical methods of calculation are presented. The results provide for casting of the surface crack developing up to the exit to the surface of the part. Furthermore, they provide an opportunity to specify the estimation of the survivability and durability of the elements of responsible equipment with allowance for kinetics of local processes of fracture along a contour of surface inclined semi-elliptical cracks considering local 3D character of the stress state and their relative depth.
Keywords
относительный коэффициент интенсивности деформаций,
наклонные полуэллиптические малоцикловые трещины,
упругие и упругопластические деформации,
объемность напряженно-деформированного состояния,
живучесть и прочность элементов конструкций,
relative strain intensity factor,
inclined semi-elliptical low-cycle cracks,
elastic and elastoplastic deformation,
3D character ofthe stress-strain state,
durability and strength of the structural elements
About the Authors
N. A. Makhutov
Институт машиноведения им. А. А. Благонравова РАН
Russian Federation
Russian Federation
I. V. Makarenko
Институт машиноведения им. А. А. Благонравова РАН
Russian Federation
Russian Federation
L. V. Makarenko
Институт машиноведения им. А. А. Благонравова РАН
Russian Federation
Russian Federation
References
1. Hayashi K., Abe H. Stress intensity factors for a semi-elliptical crack in the surface of a semi-infinite solid / Int. J. Fract. 1980. Vol. 16. N 3. P. 275 - 285.
2. Isida M., Noguchi H. A circular inclusion and an arbitrary array of cracks in infinite body under in-planes loads / Trans, Jap. Mech. Eng. 1983. Vol. A49. N 438. P. 147 - 155.
3. Makhutov N. A., Makarenko I. V., Makarenko L. V. Studies on the fracture mechanism and kinetics of randomly oriented surface semielliptic cracks at the multiaxial stress-strain state with deformation criteria of nonlinear fracture mechanics / Strength ofMaterials. 2013. Vol. 45. N 4. July. P. 454 - 458.
4. Makhutov N. A., Makarenko I. V., Makarenko L. V. Studies on the fracture mechanism and kinetics of randomly oriented surface semi-elliptic cracks at the multiaxial stress-strain state with deformation criteria of nonlinear fracture mechanics / Strength of Materials. 2013. Vol. 45. N 4. July. P. 454 - 458.
5. Махутов H. А., Макаренко И. В., Макаренко Л. В. Расчетно-экспериментальное исследование развития поверхностных полуэллиптических наклонных малоцикловых трещин / Заводская лаборатория. Диагностика материалов. 2013. Т. 79. № 11. С. 39 - 44.
6. Makhutov N. A., Makarenko I. V., Makarenko L. V. Tenselydeformed conditions in conditions of complex circuits loading and non-uniform properties at top of the crack / Abstracts of the 5th International Conference «Problems of dynamics and strength in gas-turbine construction» / Ed. A. P. Zinkovskyy. - Kyiv. 27-31 May, 2014) G. S. Pisarenko Institute for Problems of Strength of the National Acad. Sci. of Ukraine, 2014. - 314 p.
7. ANSYS, 2010. Structural Analysis Guide. 660578.
8. Newman J. C. Fracture analysis of surface and through-cracked sheets and plates / Eng. Fract. Mech. 1973. Vol. 4. P. 667 - 689.
9. Rice J. R., Levy N. Part-through surface in an elastic plate / J. of Appl. Mech. 1972.Vol.39.N1. P. 185 -200.
10. Махутов H. А. Конструкционная прочность, ресурс и техногенная безопасность. В двух частях. - Новосибирск: Наука, 2005. - 1110 с.
11. Shlyannikov V. N., Tumanov A. V. An inclined surface crack subject to biaxial loading / Int. J. Solids Struct. 2011. Vol. 48. P. 1778 - 1790.
Review
For citations:
Makhutov N.A., Makarenko I.V., Makarenko L.V. Numerical and Experimental Analysis of a Stress-Strain State of the Inclined Semi-Elliptical Surface Cracks. Industrial laboratory. Diagnostics of materials. 2016;82(3):49-53. (In Russ.)
Views:
302
Email this article 