Results 101 to 110 of about 15,910 (229)

Toward an idiographic understanding of the role of sleep‐mood dynamics in adolescents' internalizing symptoms

JCPP Advances, EarlyView.
Abstract Background Adolescence is marked by increased vulnerability to sleep disturbances and mood disorders. Understanding how day‐to‐day changes in sleep and mood are linked within the same individual is crucial for clarifying sleep's role in emerging internalizing disorders. However, the extent to which an adolescent's fluctuations in sleep predict
Konstantin Drexl, Setareh Ranjbar, Sébastien Urben, Kerstin Jessica Plessen, Jennifer Glaus   +4 more
wiley   +1 more source

A damage-plasticity model for the dynamic failure of concrete

, 2011
A constitutive model based on the combination of damage mechanics and plasticity is developed to analyse concrete structures subjected to dynamic loading. The aim is to obtain a model, which requires input parameters with clear physical meanings.
Grassl, Peter, Gylltoft, Kent, Nystrom, Ulrika, Rempling, Rasmus   +3 more
core  

Effects of grain size distribution on the initial strain shear modulus of calcareous sand [PDF]

, 2015
The soil’s small strain shear modulus, Gmax or G0, is applied in dynamic behavior analyses and is correlated to other soil properties (density and void ratio) for predicting soil dynamic behavior under seismic loadings such as earthquakes, machinery or ...
Haegeman, Wim, Mengé, P, Pham, Huu Ha Giang, Van Impe, PO, Van Impe, William   +4 more
core   +1 more source

CYCLIC STRENGTHS OF CLAY AND SAND BY STRAIN RATE CONTROLLED CYCLIC TRIAXIAL TEST

Doboku Gakkai Ronbunshu, 1995
本研究は, 土の載荷速度依存性に着目して, 飽和粘土を主対象に定ひずみ速度繰返し三軸圧縮試験を行い, 従来の応力制御式による繰返し三軸試験結果と比較検討を行ったものである. また, ゆるい飽和砂とまさ土についても同様の検討を行った. その結果, 定ひずみ速度繰返し三軸試験による実験結果は, 特に粘土やひずみ軟化挙動を起こすような緩い砂, あるいは破砕性土であるまさ土などにおいて応力制御試験によるよりも安定した挙動となることが明らかとなった. さらに, 定ひずみ速度繰返し試験により, 粘土の繰返し強度特性におよぼすひずみ速度の影響について調べた.
Masayuki Hyodo, Keizo Shinomiya, Noriyuki Yasufuku, Hidekazu Murata   +3 more
openaire   +2 more sources

A Peridynamic Framework for Modeling Progressive Failure in Porous Sandstone Indentation

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT A state‐based peridynamic model is proposed to simulate the failure mechanisms in porous rocks, using Bentheim sandstone as a specific example. Experimental observations reveal a transition from brittle to ductile failure under increasing triaxial compression. This behavior is attributed to pore compaction. The peridynamic model is enhanced to
Sahir N. Butt, Jörg Renner, Günther Meschke   +2 more
wiley   +1 more source

PRENOLIN project. Results of the validation phase at sendai site [PDF]

, 2017
One of the objectives of the PRENOLIN project is the assessment of uncertainties associated with non-linear simulation of 1D site effects. An international benchmark is underway to test several numerical codes, including various non-linear soil ...
Amorosi, Angelo, Arduino, Pedro, Assimaki, Dominiki, Atsushi, Nozu, Boldini, Daniela, Chen, Long, Chiaradonna, Anna, Deborah, Sicillia, Demartin, Florent, di Lernia, Annamaria, Diego Mercerat, E., Ebrille, Marco, Etienne, Bertrand, Fabrice, Hollender, Falcone, Gaetano, Foerster, Evelyne, Foti, Sebastiano, Garini, Evangelia, Gazetas, George, Ghofrani, Alborz, Gingery, Jim, Glinsky, Nathalie, Gélis, Céline, Harmon, Joseph, Hashash, Youssef, Hirosho, Kawase, Iai, Susumu, Jeremić, Boris, Julie, Régnier, Kontoe, Stavroula, Kramer, Steve, Kristek, Jozef, Lanzo, Giuseppe, Lopez-Caballero, Fernando, Luis-Fabian, Bonilla, Marot, Marianne, Mcallister, Graeme, Moczo, Peter, Montoya-Noguera, Silvana, Musgrove, Michael, Nieto-Ferro, Alex, Pagliaroli, Alessandro, Paola Santisi d'Avila, Maria, Pierre-Yves, Bard, Pisanò, Federico, Richterova, Aneta, Sajana, Suwal, Shi, Jian, Silvestri, Francesco, Taiebat, Mahdi, Tropeano, Giuseppe, Verrucci, Luca, Watanabe, Kohei   +52 more
core  

Capturing Complex Rate‐Dependent Behaviors of Saturated Clays: A Fractional Consistency Kinematic Hardening Viscoplastic Approach

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Saturated high plasticity clays show complex nonlinear, rate‐dependent, and hysteresis behaviors under non‐monotonic stress paths, requiring advanced mathematical constitutive equations for accurate description. Taking into account the inherent advantages of kinematic hardening mechanisms in simulating complex stress histories, this paper ...
Wei Cheng, Zhen‐Yu Yin
wiley   +1 more source

The Dynamic Response of Unsaturated Clean Sand at a Very Low Frequency

International Journal of Technology, 2016
A series of cyclic triaxial tests at very low frequency was carried out on unsaturated clean sand in order to quantitatively investigate the influence of the degree of saturation on dynamic response. The conventional triaxial testing apparatus, which
Rini Kusumawardani, Kabul Basah Suryolelono, Bambang Suhendro, Ahmad Rifa’i   +3 more
doaj   +1 more source

Elastoplasticity Informed Kolmogorov–Arnold Networks Using Chebyshev Polynomials

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Multilayer perceptron (MLP) networks are predominantly used to develop data‐driven constitutive models for granular materials. They offer a compelling alternative to traditional physics‐based constitutive models in predicting non‐linear responses of these materials, for example, elastoplasticity, under various loading conditions. To attain the
Farinaz Mostajeran, Salah A. Faroughi
wiley   +1 more source

Micro‐Texturized and Ultra‐Soft Dry Electrode for Motion‐Artifact Tolerant and Long‐Term Stable Wearable Electrophysiological Monitoring

Small, EarlyView.
A highly conformal and adhesive dry electrode is developed using a micro‐textured carbon black/PDMS composite. By leveraging spontaneous surface roughness for enhanced mechanical interlocking and integrating a stretchable serpentine interconnector, the device achieves robust skin contact and low impedance.
Sang‐Min Kim, Hee Jeong Jang, Ki‐Hoon Kim, Yeon‐Jeong Hwang, Yu Bin Lee, Joonsoo Jeong, Sunghoon Jung, Eubin Jeong, Dong‐Wook Han, Eui‐Suk Sung, Min‐Ho Seo   +10 more
wiley   +1 more source