Reliability analysis of geogrid material with random nonlinear viscoelastic characteristics

Cover Page

Abstract


Introduction. The behavior in the course of a time of geogrid material with random nonlinear viscoelastic characteristics under tension is analysed. Parameters of viscoelasticity are represented in form of Gaussian random vector. The components of this vector are taken from experimental data. Aim of the research. The objective of this research is the analysis of influence of different factors (value of applied load and the application of load in the form of random value instead of dead one, number of realizations, change of given level of strain) on providing of needed service life of geogrid material with given reliability level. Here reliability is interpreted as function of probability of non-failure. The first crossing of some given level by random strain is considered as a failure. The strain value corresponding to yield limit of geogrid material is accepted as the given level of longitudinal strain. Methods. The realizations of Gaussian random vector of viscoelastic parameters of material with given correlation matrix were imitated by means of linear transformation method. Results. It is demonstrated that longitudinal strain is Gaussian nonstationary random process which stochastic analysis can be made on base of 10 000 realizations. The dependencies on time of mathematical expectation and standard deviation of random longitudinal strain as well as function of probability of non-failure are found. Conclusion. It is shown that durability estimation found on base of the deterministic problem solution is overestimated in comparison with stochastic problem solution if the condition of given service life providing with some reliability level is set up.


About the authors

Alexander I Marasanov

Russian University of Transport

Author for correspondence.
Email: marasanovai@yandex.ru
9 Obrazcova St., bldg. 9, Moscow, 127994, Russian Federation

PhD in Technical Sciences, Associate Professor, Department of Structural Mechanics

References

  1. ODM 218.5.001-2009. Metodicheskie recomendacii po primeneniu geosetok i ploskih georeshetok dlia armirovania asfaltobetonnih sloev usovershenstvovannih vidod pokritiy pri kapitalnom remonte i remonte avtodorog [Guidelines for the use of geogrids and flat geogrids for reinforcing asphalt concrete layers of improved types of coatings for overhauling and repairing highways]. (In Russ.)
  2. Marasanov A.I., Fimkin A.I. (2014). Issledovanie vyazkouprugih svojstv materiala georeshetok razlichnyh tipov [The investigation of the viscoelastic properties of the material of geogrids of various types]. Mechanization of Construction, (6), 33–36. (In Russ.)
  3. Loginova I.I., Artamonova D.A., Stolyarov O.N., Melnikov B.E. (2015). Vliyanie struktury na vyazkouprugie svojstva geosinteticheskih materialov [Effect of structure on the viscoelastic properties of geosynthetic materials]. Magazine of Civil Engineering, 4(56), 11–18. (In Russ.)
  4. Srungeri S.G., Alekseev N.N., Kovalenko I.A., Stolyarov O.N. (2017). Creep behavior of geosynthetics by temperature accelerated testing. Magazine of Civil Engineering, 8(76), 255–265.
  5. Ponomarev A.B., Kleveko V.I., Tat'yannikov D.A. (2014). Analiz izmeneniya prochnostnyh harakteristik geosinteticheskih materialov v processe ehkspluatacii [Analysis of changes in the strength characteristics of geosynthetic materials during operation]. Nauchniy vestnik voronejskogo arkhitekturno-stroitelnogo universiteta. Stroitelstvo i arkhitectura, 3(35), 11–16. (In Russ.)
  6. De Bona Becker L., Lopes da Silva Nunes A.L. (2015). Influence of soil confinement on the creep behavior of geotextiles. Geotextiles and Geomembranes, 43(4), 351–358.
  7. Puliaevsky D.V., Tokarev P.M. (2006). Napriajennodeformirovannoe sostoianje elementov is sinteticheskih netkannih materialov s uchetom ih nelineynoy polsuchesti [Stress-strain state of the elements of systems made of synthetic non-woven materials, taking into account their nonlinear creep]. Structural Mechanics and Analysis of Constructions, (5), 52–57. (In Russ.)
  8. Fu-Lin Li, Fang-Le Peng, Yong Tan, W. Kongkitkul, M.S.A. Siddiquee. (2012). FE simulation of viscous behavior of geogrid-reinforced sand under laboratory-scale plane-strain-compression testing. Geotextiles and Geomembranes, (31), 72–80.
  9. Liu K.-W., Kerry Rowe R. (2015). Numerical study of the effects of geosynthetic reinforcement viscosity on behaviour of embankments supported by deep-mixing-method columns. Geotextiles and Geomembranes, 43(6), 567–578.
  10. Bikov V.V. (1971). Cifrovoe modelirovanie v statisticheskoy radiotehnike [Digital modeling in statistical radio engineering.]. Moscow: Sovetskoe radio Publ., 328. (In Russ.)

Statistics

Views

Abstract - 253

PDF (Russian) - 225

Cited-By


PlumX

Dimensions


Copyright (c) 2019 Marasanov A.I.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies