Results 91 to 100 of about 4,851 (264)

Micromechanical investigation of soil plasticity using a discrete model of polygonal particles [PDF]

Theoretical and Applied Mechanics, 2008
The mechanical behavior of soils has been traditionally described using continuum-mechanics-based models. These are empirical relations based on laboratory tests of soil specimens.
Alonso-Marroquin Fernando, Muhlhaus Hans B., Herrmann Hans J.   +2 more
doaj   +1 more source

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

Investigations on Ratcheting and Post–ratcheting Tensile Behavior of a 7075-T6 Aluminum Alloy [PDF]

, 2015
In this work, it has been aimed to study the ratcheting and post–ratcheting tensile behavior of a 7075-T6 aluminum alloy at room temperature which is potentially used in aerospace, automobile components etc.
Amarnath, Lala
core  

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

Ratcheting Assessment of Medium Carbon and Austenitic Steel Alloys at Elevated Temperatures

Journal of Manufacturing and Materials Processing
The present study intends to evaluate the ratcheting of ER9 wheel medium carbon steel and austenitic steel samples at room and elevated temperatures subjected to uniaxial loading cycles through the use of the Ahmadzadeh–Varvani (A–V) kinematic hardening ...
Petar Jevtic, Ahmad Varvani-Farahani
doaj   +1 more source

Efficient Harvesting of Irregular and Low‐Frequency Mechanical Energy via Hybridized Electromagnetic‐Triboelectric Systems

Small, EarlyView.
ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han, Ju‐Hyuck Lee, Hong‐Joon Yoon   +2 more
wiley   +1 more source

Ratcheting Response of Heat-Treated Notched 1045 Steel Samples Undergoing Asymmetric Uniaxial Loading Cycles

Applied Mechanics
The present study evaluates the ratcheting response of notched cylindrical samples made of 1045 steel alloy subjected to asymmetric loading cycles using the kinematic hardening framework, coupled with Neuber’s rule.
Faezeh Hatami, Ahmad Varvani-Farahani
doaj   +1 more source

The Feasibility of Household Food Waste Reduction in Finland: Insights From Five Consumer Profiles

Australian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT We apply a household production framework to analyse how changes in cooking skills, waste‐abatement costs and wage rates influence the food waste behaviour of five consumer profiles in Finland. We find that achieving a given reduction in food waste through skill‐enhancing interventions induces larger behavioural adjustments than equivalent ...
Aino Friman, Dušan Drabik
wiley   +1 more source

Ratcheting of Stainless Steel 304 Under Multiaxial Nonproportional Loading

, 2018
Multiaxial ratcheting is often simulated by use of nonlinear kinematic hardening models, while in reality materials show cyclic hardening/softening and additional hardening under nonproportional loading.
Sakane, M, Jiao, R, Chen, X, Kim, KS
core   +1 more source

Success and failure in foreign policy: Comparing Bob Hawke and Kevin Rudd's regional order‐building initiatives

Australian Journal of Public Administration, EarlyView.
Abstract Remarkably little is known about what factors drive success or failure in foreign policy. In part, this is because there is little fundamental agreement on what constitutes success or failure in this domain in the first place. This article engages with these shortcomings by comparing two similar regional order‐building initiatives overseen by ...
Benjamin Day
wiley   +1 more source