Results 71 to 80 of about 45,600 (297)

Effects of surface roughness of particles on small-strain dynamic properties of granular materials

open access: yesYantu gongcheng xuebao
The small-strain shear modulus and damping ratio are the important dynamic properties of granular soils, which are influenced by the packing density and stress states of the soil element as well as the particle characteristics including gradation, shape ...
ZHANG Tao 1, 3, WU Jian 2, WEI Xiao 1, 3, YANG Zhongxuan 1
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Constrained modulus of fine-grained soils from in situ-based correlations and comparison with laboratory tests [PDF]

open access: yesE3S Web of Conferences
The Constrained Modulus of soil is an important parameter to quantify compressibility of soils and calculate consolidation settlements, especially for clays. It is often expressed in terms of 1D constrained modulus, M or its inverse coefficient of volume
Dhimitri Luisa, Powell John J.M.
doaj   +1 more source

Resonant column tests on maximum shear modulus and damping ratio of coral sand

open access: yesYantu gongcheng xuebao, 2020
The resonant column tests on the effects of relative density and confining pressure on the maximum modulus and damping ratio of coral sand in South China Sea under small strain are performed.
LI Xiao-mei 1, WANG Fang 1, HAN Lin 2, GUAN Yun-fei 1, ZHAN Xin-jie 1
doaj   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

The influence of suction changes on the stiffness of railway formation

open access: yes, 2011
Despite compacted soils being unsaturated, geotechnical design is predominantly based on saturated soils,despite it being known that differences exist between the behaviour of saturated and unsaturated soils.Suction in soils has been shown to increase ...
Otter, Louise
core  

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim   +3 more
wiley   +1 more source

Experimental and Numerical Modal Analysis of Composite Sandwich Structures Using Surfboards as Model Systems

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan   +4 more
wiley   +1 more source

Effects of principal stress rotation and drainage on the resilient stiffness of railway foundations

open access: yes, 2013
Railway foundations play an integral role in controlling the stability of the overlying track structure and the maintenance of the overall track geometry.
Mamou, A.
core  

Dynamic shear modulus ratio and damping ratio with the dynamic shear strain of the soil.

open access: yes, 2023
Dynamic shear modulus ratio and damping ratio with the dynamic shear strain of the soil.
Yan-Jia Qiu (15194864)   +3 more
core   +1 more source

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