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Mechanistic Model for Contact between Rough Surfaces
Publisher: American Society of Civil Engineers
Abstract: Interactions at interfaces play a pivotal role in the mechanics of particulate and fractured material. This paper focusses on the mathematical modeling of force-deformation behavior of interface between two rough surfaces. ...
Elastic Behavior of 2D Grain Packing Modeled as Micromorphic Media Based on Granular Micromechanics
Publisher: American Society of Civil Engineers
Abstract: Discrete simulation and continuum modeling are two competing methods for analyzing the behavior of complex material systems and granular assemblies. In this paper, a two-dimensional (2D) granular micromechanics model for ...
Rock-Joint Micromechanics: Relationship of Roughness to Closure and Wave Propagation
Publisher: American Society of Civil Engineers
Abstract: The closure behavior of rock joints is intimately related to joint roughness. Here we utilize a micromechanical approach that explicitly considers asperity interactions on joint surfaces to study the rock-joint closure and ...
Elastic Behavior of 2D Grain Packing Modeled as Micromorphic Media Based on Granular Micromechanics
Publisher: American Society of Civil Engineers
Abstract: Discrete simulation and continuum modeling are two competing methods for analyzing the behavior of complex material systems and granular assemblies. In this paper, a two-dimensional (2D) granular micromechanics model for ...
Packing Structure and Mechanical Properties of Granulates
Publisher: American Society of Civil Engineers
Abstract: The stiffness tensor relating the stress and strain in the generalized Hooke's law can take various forms depending upon the symmetry of the mechanical properties of the granular material. This material symmetry is expected ...
Theoretical and Experimental Study of Regular Packings of Granules
Publisher: American Society of Civil Engineers
Abstract: The mechanical behavior of granular material is greatly influenced by packing geometry. A stress‐strain theory for small deformations of granular media made of equal‐sized particles arranged systematically is developed ...
Application of Uniform Strain Theory to Heterogeneous Granular Solids
Publisher: American Society of Civil Engineers
Abstract: The micro‐ and the macro‐mechanical measures of heterogeneous granular solids are investigated using two methods, namely a computer simulation method, and a micro‐structural continuum method. The micro‐structural continuum ...
Higher-Order Continuum Theory Applied to Fracture Simulation of Nanoscale Intergranular Glassy Film
Publisher: American Society of Civil Engineers
Abstract: Complex grain-boundary structures such as the 1–2 nm thick intergranular glassy films (IGF) play a prominent role in the failure behavior of nanophased ceramics. The IGF plays the role of an imperfection and serves as the ...
Performance-Based Design of Drilled Shaft Bridge Foundations
Publisher: American Society of Civil Engineers
Abstract: The design of deep foundations for bridge structures should ideally consider the interaction between the soil and the foundation element to properly model the side and tip resistance components. A soil-structure interaction ...
Elastoplastic Deformation for Particulates with Frictional Contacts
Publisher: American Society of Civil Engineers
Abstract: Perceiving granular material as a collection of particles, a constitutive law for granular material is derived based on a micromechanics approach, taking into account the mechanisms of sliding and separation of particles ...