Results 41 to 50 of about 1,008 (195)

Parameters’ Identification of Perzyna and Chaboche Viscoplastic Models for Aluminum Alloy at Temperature of 120ºC

Engineering Transactions, 2015
The main purpose of this paper is the parameters identification of the Perzyna and the Chaboche models for the aluminum alloy at elevated temperature. The additional purpose is comparison of the results for these viscoplastic models.
Paweł KŁOSOWSKI, Anna MLECZEK
doaj   +1 more source

Crystal Plasticity Finite Element Modeling on High Temperature Low Cycle Fatigue of Ti2AlNb Alloy

Applied Sciences, 2023
Ti2AlNb alloy is a three-phase alloy, which consists of O phase, β phase and α2 phase. Because of the difference in the mechanical characteristics between phases, Ti2AlNb alloy often exhibits deformation heterogeneity. Based on EBSD images of the Ti2AlNb
Yanju Wang, Zhao Zhang, Xinhao Wang, Yanfeng Yang, Xiang Lan, Heng Li   +5 more
doaj   +1 more source

Assessment of Soil Erosion Over Six Decades in a Long‐Term Experiment Using Fallout 137Cs and RUSLE: A South American Case Study

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major global concern affecting agricultural productivity and land sustainability. This study investigates the magnitude and variability of soil erosion in a long‐term experiment (LTE) established in 1963 in Colonia, Uruguay, aiming to compare the performance of the 137Cs tracer technique and the RUSLE model across ...
Marcos Tassano, Mirel Cabrera, Joan Gonzalez, Mario Perez‐Bidegain, Olivier Evrard, Kathrin Grahmann, J. Andrés Quincke   +6 more
wiley   +1 more source

Parameter identification of chaboche material model using indantation test data and inverse approach [PDF]

, 2015
In this paper genetic algorithm and sensitivity analysis are used to identify 6 parameters of Chaboche kinematic hardening model using repeated Finite element (FE) simulations of indentation test.
Cermak, Martin, Karasek, Tomas, Rojicek, Jaroslav, Halama, Radim   +3 more
core   +1 more source

Porosity‐Permeability Evolution of Carbonate Rocks Under Cyclic Hydrostatic Loading: Creep‐Fatigue Interaction and Implications for Hydrogen Storage

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Underground hydrogen storage in porous formations (UHSP) subjects reservoir rocks to long‐term cyclic effective stress variations, potentially altering storage capacity and injectivity. In this study, we conduct hydrostatic loading tests on 18 Saint‐Maximin limestone (SML) samples (connected porosity 31.9%–37.2%) under various loading paths ...
Zhaochen Xu, Jean Sulem, Philipp Braun
wiley   +1 more source

Simulation of Large-Strain Tensile Necking in Single-Crystal Copper Specimens

Metals
The mechanical behavior, the necking process and the geometry of the neck in rectangular cross-section single-crystal copper specimens under macroscopic uniaxial large-strain tensile conditions were numerically simulated and analyzed using the classical ...
Lili Jin, Hai Wu, Keshi Zhang
doaj   +1 more source

Physics‐Guided Transfer Learning for Predicting Stress–Strain Curves With Limited Experimental Data

cScience, Volume 2, Issue 1, March 2026.
ABSTRACT Many measurements in materials science are expressed as full response curves rather than single scalar values. Nevertheless, predicting entire curves reliably from limited experimental data remains challenging. Here, we address this problem for hot‐deformation stress–strain curves using a physics‐guided transfer learning (PGTL) framework that ...
Jiaxuan Ma, Jie Xiong, Sheng Xu, Tianyi Zhou, Shuai Chen   +4 more
wiley   +1 more source

Dynamic Models of Magma Storage Within a Damaging, Strain‐Softening Crust and Their Application to Sierra‐Negra's Pre‐Eruptive Inflation Pattern

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Prior to its 2005 and 2018 eruptions Sierra Negra's caldera displayed decades‐long inflation characterized by successive transient uplifts culminating in accelerating uplifts in the 1–2 years prior to each eruption. These observations motivated the question: can these transient uplifts be explained by internal dynamics of the magma system ...
D. Walwer, P. Lundgren
wiley   +1 more source

Experimental and Numerical Study of Mild Steel Behaviour under Cyclic Loading with Variable Strain Ranges

Advances in Materials Science and Engineering, 2016
To simulate the effect of variable strains on steel grades S275 and S355, an experimental displacement control test of plate specimens was performed. Specimens were tested under monotonic and cyclic loading according to the standard loading protocol of ...
Paulina Krolo, Davor Grandić, Željko Smolčić   +2 more
doaj   +1 more source

A Note on the Numerical Modelling of Viscoplastic Damage

Engineering Transactions, 2015
In this paper, a numerical model of the viscoplastic behaviour of metals including damage effects is proposed. The Chaboche model of constitutive equations accounting for viscoplasticity coupled to damage is applied.
P. Kłosowski, R. Schmidt, D. Weichert
doaj   +1 more source