...Shu-Rong Yang The repeated load triaxial test has been commonly used to evaluate the resilient modulus of base, subbase, and subgrade soils. When conducting the resilient modulus test, if a load cell is placed outside the chamber to measure the axial load, the piston friction is included...

...S.-R. Yang; J.-R. Chang Accumulated plastic strain in subgrade soils under repeated loading is an important factor for the design and analysis of flexible pavement. Accurate prediction of the plastic strain is dependent on the constitution of a predictive model. This study discusses the plastic...