PhD Thesis

    Gajo A., "Instability phenomena in sand samples"., 2003, PhD thesis, University of Bristol.

    Articles Published in International Journals


  1. Gajo A., Bigoni D., "A model for stress and plastic strain induced nonlinear, hyperelastic anisotropy in soils". International Journal for Numerical and Analytical Methods in Geomechanics, 2008, v. 32, p. 833-861

  2. Gajo A., Maines M., "Mechanical effects of acqueous solutions of inorganic acids and bases on a natural active clay".Géotechnique, 2007, v. 57, p. 687-699

  3. Gajo A., Loret B., "The mechanics of active clays circulated by salts, acids and bases". Journal of the Mechanics and Physics of Solids, 2007, v. 55, p. 1762-1801

  4. Gajo A., Muir Wood D., Bigoni D., "On certain critical material and testing characteristics affecting shear band development in sand". Géotechnique, 2007, v. 57, p. 449-461

  5. Piccolroaz A., Bigoni D., Gajo A., "An elastoplastic framework for granular materials becoming cohesive through mechanical densification. Part II – large strain formulation". European journal of mechanics. A, Solids, 2005, v. 25, p. 358-369.

  6. Piccolroaz A., Bigoni D., Gajo A., "An elastoplastic framework for granular materials becoming cohesive through mechanical densification. Part I – small strain formulation". European journal of mechanics. A, Solids, 2005, v. 25, p. 334-357.

  7. Gajo A., "The influence of system compliance on collapse of triaxial sand samples". Canadian Geotechnical Journal, 2004, v. 41, p. 257-273.

  8. Gajo A., Bigoni D., Muir Wood D., "Multiple shear band development and related instabilities in granular materials". Journal of the Mechanics and Physics of Solids, 2004, v. 52, p. 2683-2724.

  9. Loret B., Gajo A., Simoes F. M., "A note on the dissipation due to generalized diffusion with electro-chemo-mechanical couplings in heteroionic clays". European Journal of Mechanics. A, Solids, 2004, v. 23, p. 763-782.

  10. Gajo A., Loret B., "Transient analysis of ionic replacements in elastic-plastic expansive clays". International Journal of Solids and Structures, 2004, v. 41, pp. 7493-7531.

  11. Gajo A., Loret B., "Finite element simulations of chemo-mechanical coupling in elastic-plastic homoionic expansive clays". Computer Methods in Applied Mechanics and Engineering, 2003, v. 192, p. 3489-3530.

  12. Piccolroaz A., Gajo A., Bigoni D., "Cold compaction of ceramic powders". Materials Engineering, 2003, v. 14, n. 2, p. 157-169.

  13. Gajo A., Loret B., Hueckel T., "Electro-chemio-mechanical couplings in saturated porous media: elastic-plastic behaviour of heteroionic expansive clays". International Journal of Solids and Structures, 2002, Vol. 39, pp. 4327-4362.

  14. Loret B., Hueckel T., Gajo A., "Chemio-mechanical coupling in saturated porous media: elastic-plastic behaviour of homoionic expansive clays". International Journal of Solids and Structures, 2002, Vol. 39, pp. 2773-2806.

  15. Callisto L., Gajo A., Muir Wood D., "Simulation of triaxial and true triaxial tests on natural and reconstituted Pisa clay". Géotechnique, 2002, v. 52, n. 9, p. 649-666.

  16. Gajo A., "A non-linear analysis of non-isothermal wave propagation in linear-elastic fluid-saturated porous media". International Journal of Plasticity, 2002, Vol. 18, pp. 313-344.

  17. Gajo A., Wood D. M., "A new approach to anisotropic, bounding surface plasticity: general formulation and simulations of natural and reconstituted clays". International Journal for Numerical and Analytical Methods in Geomechanics, 2001, Vol. 25, pp. 207-241.

  18. Gajo A., "Discussion on 'Observation of Biot compressional wave of the second kind in granular soils' by Nakagawa, Soga, Mitchell". Géotechnique, 2001, Vol. 51, n. 1, pp. 85-89.

  19. Gajo A., Piffer L., De Polo F., "Analysis of certain factors affecting the unstable behaviour of saturated loose sand". Mechanics of Cohesive and Frictional Materials, 2000, Vol. 5, pp. 215-237.

  20. Gajo A., Muir Wood D., "Severn-Trent sand: a kinematic hardening constitutive model for sands: the q-p formulation". Géotechnique, 1999, Vol. 49, n. 5, pp. 595-614.

  21. Gajo A., Muir Wood D., "A kinematic hardening constitutive model for sands: the multiaxial formulation". International Journal for Numerical and Analytical Methods in Geomechanics, 1999, Vol. 23, pp. 925-965.

  22. Gajo A., Piffer L., "The effects of preloading history on the undrained behaviour of saturated loose sand". Soils and Foundations, 1999, Vol. 39, n. 6, pp. 43-54.

  23. Gajo A., Fedel A., Mongiovi' L., "Experimental analysis of the effects of fluid-solid couplings on the velocity of elastic waves in saturated porous media". Géotechnique, 1997, Vol. 47, n. 5, pp. 993-1008.

  24. Gajo A., "The effects of inertial coupling in the interpretation of dynamic soil tests". Géotechnique, 1996, pp. 245-257.

  25. Gajo A., Vitaliani R., Saetta A., "Silent boundary conditions for wave propagation in saturated porous media". International Journal for Numerical and Analytical Methods in Geomechanics, 1996, pp. 253-273.

  26. Gajo A., Mongiovi' L., "An analytical solution for the transient response of saturated linear elastic porous media". International Journal for Numerical and Analytical Methods in Geomechanics, 1995, Vol. 19, pp. 399-413.

  27. Gajo A., "The influence of viscous coupling in the propagation of elastic waves in saturated soil". Journal of Geotechnical Engineering, 1995, Vol. 121, pp. 636-644.

  28. Gajo A., Saetta A., Vitaliani R., "Evaluation of three and two finite element methods for the dynamic response of saturated soils". International Journal for Numerical Methods in Engineering, 1994, Vol. 37, pp. 1231-1247.

    29. Articles published in Referred Books

  29. Muir Wood D., Gajo A., "Hierarchical critical state models". ASCE: Geotechnical Special Publication SP128 (eds. Yamamuro, Kaliakin), 2005, pp. 459-482.

  30. Loret B., Gajo A., Hueckel T., "Electro-Chemo-Mechanical Couplings in Soils". CISM Lecture Notes (eds. Gioda, Griffiths), Springer, 2002, pp. 1-20.

  31. Piccolroaz A., Gajo A., Bigoni D., "Forming of advanced cermaics". Selected mechanical problems in structural cermaics, Bigoni D. (a cura di), Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, 2002, AMAS Lecture notes Vol. 3, pp. 1-20.

  32. Hueckel T., Loret B., Gajo A., "Swelling clays as reactive deformable, two-phase materials: basic concepts and options". Chemo-mechanical coupling in clays, Di Maio C., Loret B., Hueckel T. (a cura di), Rotterdam: Balkema, 2002, Vol. 1, pp. 105-120.

  33. Gajo A., Loret B., Hueckel T., "Electro-chemo-mechanical couplings and the elastic-plastic behaviour of heteroionic expansive clays". Chemo-Mechanical coupling in clays, Di Maio C., Hueckel T., Loret B. (a cura di), Rotterdam: Balkema, 2002, Vol. 1, pp. 261-276.

  34. Gajo A., Bigoni D., Wood D. M., "Stress induced elastic anisotropy and strain localization in sand". Bifurcation and localization theory in geomechanics, Muehlhaus H. (a cura di), Swets & Zeitlinger, Lisse, 2001, pp. 37-44.

  35. Gajo A., Mongiovi' L., "Effetti dell'accoppiamento delle fasi solida e fluida nel comportamento dinamico dei terreni saturi". Il Ruolo dei Fluidi nei Problemi di Ingegneria Geotecnica, Roma: Consiglio Nazionale delle Ricerche, 1994, Vol. 2, pp. 151-166.

    36. Articles published in Italian Journals

  36. Venzo G. A., Bazzoli G., Gajo A., "Sedimontology of the matrices of tills and glaciofluvial deposits of some glaciers in the Adamello-Presanella mountain group (Trentino, Northern Italy)". Studi trentini di scienze naturali. Acta geologica. 2001, Vol. 76, n. 1999, pp. 33-41.

  37. Croce P., Gajo A., Mongiovi' L., Zaninetti A., "Una verifica sperimentale degli effetti della gettiniezione". Rivista Italiana di Geotecnica, 1994, Vol. 2, pp. 91-101.

    38. Conference Proceedings

  38. Loret B., Gajo A., Hueckel T., "Chemo-mechanical coupling in porous media: elastic-plastic behaviour of homoionic expansive clays". Atti del convegno "First Asian-Pacific Congress on Computational Mechanics, APCOM'01", Sidney (Australia), November, 2001, 2002, pp. 1-20.

  39. Muir Wood D., Lings M. L., Nash D., Gajo A., "Anisotropy of soils: laboratory measurements and constitutive implementation". Atti del convegno "Int. Conference of Soil Mechanics and Foundation Engineering, ICSMFE", Istambul, September, 2001, 2002, pp. 1-20.

  40. Gajo A., "Observed failures of laboratory sand samples and constitutive modelling". Atti del convegno "Constitutive and centrifuge geotechnical modelling: two extremes", Locarno (Svizzera), July, 2001, A cura di Springman S., Balkema:Rotterdam, 2002, Vol. 1, pp. 1-20.

  41. Gajo A., "The effects of convective terms on the dynamic thermo-hydro-mechanical coupling in fluid-saturated porous media". Atti del convegno "VII Int. Symp. on Plasticity and its Current Applications", Cancun (Messico), January, 1999, A cura di Khan A. S., Neat Press:2000, Vol. 1, pp. 1-20.

  42. Gajo A., Muir Wood D., "Numerical analysis of shear stack under dynamic loading". Atti del convegno "Proc 11th European Conf. on Earthquake Engineering", Paris, 1998, A cura di Bisch P., Labbé P., Pecker A., Balkema:Rotterdam, ISBN 90 5410 9823, Vol. 259.

  43. Muir Wood D., Crewe A., Taylor C., Gajo A., "Localisation in earthquake simulation experiments". Atti del convegno "International Conference on the Localisation in Geomaterials", Gifu (Japan), 1997, Balkema:Rotterdam, 1998, Vol. 1, pp. 117-126.

  44. Gajo A., Soranzo M., Vitaliani R., "Subsoil characteristics and foundation settlement analysis of St. Mark's Basilica in Venice". Atti del convegno "Geotechnical Engineering for the Preservation of Monuments and Historic Sites", Napoli, 3-4 October, 1996, A cura di Viggiani C., Balkema:Rotterdam, 1997, Vol. 1, pp. 637-647.

  45. Frasnelli A., Gajo A., Mongiovi' L., Cocco S., "Engineering evaluation of input parameters for two-dimensional analysis of rockfalls". Atti del convegno "II Int. Conf. on Mechanics of Jointed and Faulted Rock, MJFR-2", Vienna, 1995.

  46. Gajo A., Mongiovi' L., "The effects of measure accuracy in the interpretation of dynamic tests on saturated soils". Atti del convegno "Pre-failure Deformation Characteristics of Geomaterials", Sapporo (Japan), 12-14 september, 1994, A cura di Shibuya S., Mitachi T., Miura S., Balkema:Rotterdam, 1995, Vol. 1, pp. 163-168.

  47. Gajo A., Mongiovi' L., "Valutazione della massa aggiunta e dei suoi effetti nei fenomeni di propagazione di onde elastiche in mezzi porosi saturi". Atti del convegno "XI Convegno Nazionale AIMETA", Trento, 1992.