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RISModeling Interparticle Size Effect on Deformation Behavior of Metal Matrix Composites by a Gradient Enhanced Plasticity Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental tests show that particle (inclusion or precipitate) size and interparticle spacing, besides volume fraction, have a considerable effect on the macroscopic mechanical response of metal ...
Coupled Interfacial Energy and Temperature Effects on Size-Dependent Yield Strength and Strain Hardening of Small Metallic Volumes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Plasticity in heterogeneous metallic materials with small volumes is governed by the interactions of dislocations at interfaces. In particular, interfaces of a material confined in a small volume ...
Mesomechanical Modeling of Polymer/Clay Nanocomposites Using a Viscoelastic-Viscoplastic-Viscodamage Constitutive Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, damage evolution in a nanocomposite containing the polymethyl methacrylate polymer (PMMA) embedded with silicate nanoclay particles is simulated by using a nonlinear viscoelastic, ...
Quantification of Plasticity and Damage in Berea Sandstone through Monotonic and Cyclic Triaxial Loading under High-Confinement Pressures
Publisher: ASCE
Abstract: This work presents indirect tensile tests and uniaxial and triaxial monotonic and cyclic compression tests of Berea sandstone (BST) under different levels of confining pressure (CP) where the axial and lateral strains are ...
Mechanical Behavior and Energy Absorption of TPMS Diamond Structures and Hybrid SC-FCC-BCC Plate-Lattices
Publisher: American Society of Civil Engineers
Abstract: Architected cellular materials and structures provide the ability to tailor mechanical and functional properties based on design topological aspects. With the progressive advancement of additive manufacturing techniques, ...
Mechanical Properties of Nanocomposite Cement Incorporating Surface-Treated and Untreated Carbon Nanotubes and Carbon Nanofibers
Publisher: American Society of Civil Engineers
Abstract: To study the effects of functionalized carbon nanotubes (CNTs) and carbon nanofibers (CNFs) on the mechanical properties of cement composites, both untreated and treated CNFs and CNTs were added to cement paste in ...
Three-Dimensional Simulations of Asphalt Pavement Permanent Deformation Using a Nonlinear Viscoelastic and Viscoplastic Model
Publisher: American Society of Civil Engineers
Abstract: The writers recently developed a nonlinear viscoelastic-viscoplastic constitutive model, in order to represent the response of asphalt mixtures under different temperatures and rates of loading. This model has been implemented ...
Carbon Nanotubes and Carbon Nanofibers for Enhancing the Mechanical Properties of Nanocomposite Cementitious Materials
Publisher: American Society of Civil Engineers
Abstract: Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are quickly becoming two of the most promising nanomaterials because of their unique mechanical properties. The size and aspect ratio of CNFs and CNTs mean that they can ...
Three-Dimensional Microstructural Modeling Framework for Dense-Graded Asphalt Concrete Using a Coupled Viscoelastic, Viscoplastic, and Viscodamage Model
Publisher: American Society of Civil Engineers
Abstract: This paper presents a three-dimensional (3D) image-based microstructural computational modeling framework to predict the thermoviscoelastic, thermoviscoplastic, and thermoviscodamage response of asphalt concrete. X-ray ...
Effective Anisotropic Elastic and Plastic Yield Properties of Periodic Foams Derived from Triply Periodic Schoen’s I-WP Minimal Surface
Publisher: ASCE
Abstract: Recently, there has been a growing interest in studying cellular materials made of unit cells that take the topology of the mathematically known triply periodic minimal surfaces (TPMS). Architected foams based on the ...