Results 101 to 110 of about 6,742 (247)

Modeling Biocemented Sands: Hypoplastic Model for MICP‐Based Ground Improvement

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Bio‐cementation offers a sustainable and low‐carbon alternative to conventional ground improvement methods, aligning with the growing demand for green geotechnical solutions. To enable reliable numerical simulation of bio‐cemented soil behavior in engineering applications, advanced constitutive models are required to account for the effects of
Merita Tafili, Hossam Abdellatif, Nazanin Irani, Torsten Wichtmann   +3 more
wiley   +1 more source

Anisotropic creep model for soft soils

, 2008
In this paper a new anisotropic model for time-dependent behaviour of soft soils is presented. The formulation is based on a previously developed isotropic creep model, assuming rotated Modified Cam Clay ellipses as contours of volumetric creep strain ...
Leoni, Martino, EC MRTN-CT-2004–512120 (Funder), , EC MRTN-CT-2004–512120 (Funder), , Academy of Finland Grant 210744 (Funder), Academy of Finland Grant 210744 (Funder), , University of Stuttgart, Vermeer, Pieter, University of Stuttgart, University of Strathclyde, , University of Strathclyde, Karstunen, Minna   +10 more
core   +1 more source

Shear hyperbolic-type equivalent-time rheological model

Yantu gongcheng xuebao, 2018
In order to predict the rheological deformation under variable shear loadings, the Yin-Graham's equivalent-time method is used to derive a shear rheological model in the framework of continuum mechanics with thermodynamic internal variables. Firstly, the
HU Ya-yuan
doaj   +1 more source

Overshooting of Hypoplastic Models With Intergranular Strain: Manifestation, Implications and Remedy

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Intergranular strain extensions of hypoplasticity (IGS, ISA, GIS) are widely used to model small‐strain and cyclic soil behaviour. However, recent studies and our own simulations reveal that these models can exhibit stress overshooting not only under repeated small loading cycles but also during monotonic loading.
Jan Machaček, Merita Tafili, Carlos Grandas Tavera   +2 more
wiley   +1 more source

Evaluation of Fiber‐Matrix Debonding in Glass, Carbon, and Hybrid Fiber Composites Under Transverse Loading by Full‐Field Measurements

Polymer Composites, EarlyView.
An experimental multiscale approach to investigate how fiber spacing, orientation, and material hybridization influence fiber‐matrix debonding and transverse cracking. ABSTRACT This study aims to experimentally quantify fiber‐matrix debonding and transverse crack evolution in single‐fiber and double‐fiber composite specimens, with particular emphasis ...
Zaynab Hazaveh, Behrad Koohbor
wiley   +1 more source

Mechanical Properties and Fracture Surface Morphology of Quartz Sandstone Under Triaxial Shear

工程科学与技术
To study the shear damage deformation characteristics of intact rock in rock slopes under three-dimensional compressive–shear stress conditions, 16 sets of triaxial shear tests were conducted on saturated intact fine-grained quartz sandstone with simple ...
Zhinan LIN, Shihong FENG, Jiaquan WANG, Qiang ZHANG, Haifeng LONG   +4 more
doaj  

Undrained Cyclic Shear Strength and Residual Shear Strain of Saturated Sand by Cyclic Triaxial Tests

Soils and Foundations, 1991
ABSTRACT The undrained cyclic triaxial behaviour of saturated sand was studied using isotropically and anisotropically consolidated specimens. The strength and deformation under various combinations of initial static and cyclic shear stresses were considered. The cyclic strength was first discussed, and the residual shear strain was then investigated
HYODO, MASAYUKI, MURATA, HIDEKAZU, YASUFUKU, NORIYUKI, FUJII, TERUHISA   +3 more
openaire   +2 more sources

Exploring the Use and Impact of Composite Materials in Robotics: A Systematic Review

Journal of Field Robotics, EarlyView.
ABSTRACT Lightweight and high‐strength materials are important in robotics, as structural design impacts efficiency, payload capacity, and energy consumption. Composite materials, with their superior stiffness‐to‐weight ratios and multifunctional properties, offer clear advantages over conventional metals and polymers.
Doglas Negri, Gabriela Wessling Oening, Felipe Augusto Carvalho de Faria, Sarah Maria Schroeder, Ricardo De Medeiros   +4 more
wiley   +1 more source

The Progressive Development and Post-failure Behaviour of Deep-seated Landslide Complexes [PDF]

, 2011
The concept of progressive shear surface development remains to be fully understood. This study aims to investigate the mechanisms of progressive shear surface development to failure, and the subsequent post-failure behaviour, of deep-seated landslide ...
CAREY, JONATHAN,MARTIN, Carey, Jonathan Martin   +1 more
core  

Resin recovery and the use of computed tomography for quantitative image analysis of railway ballast

, 2014
Over its life cycle, railway ballast undergoes changes to its fabric structure due to train loading and maintenance (e.g. tamping). Understanding these changes and linking them quantitatively to the loading regime has the potential to inform improved ...
Powrie, W., Ahmed, S., Le Pen, L., Harkness, J., Zervos, A.   +4 more
core   +1 more source