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Full-Text Articles in Engineering
Numerical Modelling Of Soft Soil Stabilized By Vertical Drains, Combining Surcharge And Vacuum Preloading For A Storage Yard, Cholachat Rujikiatkamjorn, Buddhima Indraratna, C. Jian
Numerical Modelling Of Soft Soil Stabilized By Vertical Drains, Combining Surcharge And Vacuum Preloading For A Storage Yard, Cholachat Rujikiatkamjorn, Buddhima Indraratna, C. Jian
Faculty of Engineering - Papers (Archive)
This paper presents a finite element analysis of a case study of a combined vacuum and surcharge load through prefabricated vertical drains (PVD) at a storage yard at Tianjin Port, China. The top 15 m of soil at this site was very soft to soft, and needed to be improved using preloading surcharges of more than 140 kPa. To avoid any stability problems associated with a high surcharge embankment, 80 kPa vacuum pressure combined with fill surcharge was applied (40 and 58 kPa for Sections I and II, respectively). A plane strain analysis was performed using equivalent permeability and transformed …
Determining Equi-Biaxial Residual Stress And Mechanical Properties From The Force-Displacement Curves Of Conical Microindentation, J. Yan, X. Chen, Anette M. Karlsson
Determining Equi-Biaxial Residual Stress And Mechanical Properties From The Force-Displacement Curves Of Conical Microindentation, J. Yan, X. Chen, Anette M. Karlsson
Mechanical Engineering Faculty Publications
An alternative, improved method to determine mechanical properties from indentation testing is presented. This method can determine the elastic modulus, yield strength and equi-biaxial residual stress from one simple test. Furthermore,the technique does not require the knowledge of the contact area during indentation, a parameter that is hard to determine for highly elastic material. The evaluation technique is based on finite element analyses, where explicit formulations are established to correlate the parameter groups governing indentation on stressed specimens.