Practices for Unbound Aggregate Pavement Layers (2013) / Chapter Skim
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Pages 172-175
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172 APPENDIX D Review of Current Resilient Modulus Models REvIEw of CuRRENt REsIlIENt MoDulus MoDEls Resilient models of granular materials increase with increasing stress states (stress-hardening) , especially with confining pressure and/or bulk stress, and slightly with deviator stress (Lekarp et al.
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173 where Ki is an initial value of bulk modulus, Gi is an initial value of shear modulus and n is a constant less than 1.0. Boyce (1980)
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174 Itani Model An improved correlation between the resilient modulus and various stress state variables, such as deviator stress, mean stress, confining stress, and axial strain, was obtained from multiple regression analyses. Itani (1990)
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From page 175... ...
175 Transportation Research Board, National Research Council, Washington D.C., 1981, pp.
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