Results 41 to 50 of about 5,109 (222)

Multi‐level fatigue reliability assessment of reinforced concrete railway bridges

Structural Concrete, EarlyView.
Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento, Jaime Gonzalez‐Libreros, Chao Wang, Lennart Elfgren, Ola Enoksson, Tommy Höjsten, Lars‐Olof Andersson, Gabriel Sas   +7 more
wiley   +1 more source

Viscoplastic behavior of diamond die attach subjected to high temperature conditions [PDF]

, 2012
In power electronic applications, diamond based semi-conductors appears to be a new way to widely increase the capabilities of power electronic converters. The main prospective expected is an increasing in system integration and power capabilities.
Alexis, Joël, Baazaoui, Ahlem, Dalverny, Olivier, Karama, Moussa, Msolli, Sabeur   +4 more
core   +1 more source

Hybrid Data‐Driven and Physics‐Informed Learning of Cyclic Plasticity For Pipe Steel

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT An efficient and explainable machine learning (ML) approach is presented, replacing conventional material models based on the radial return mapping (RRM) algorithm for the constitutive modeling of cyclic plasticity in 3D. The application of transfer learning, based on an existing model for a separate class of steel, leads to a significant ...
Stefan Hildebrand, Sandra Klinge
wiley   +1 more source

Dynamic strength differential and Bauschinger effects in an extruded AZ80 magnesium alloy

Journal of Materials Research and Technology
Quasi-static and high-rate tension and compression properties of an extruded AZ80 Mg alloy rod were investigated at loading rates of 0.001 and 500 s−1.
Zijian Fang, Tao Guo, Yang Wang, Ziran Li   +3 more
doaj   +1 more source

An Investigation into the Different Hardening Models in Reverse Forming of Thin Sheets

Advances in Mechanical Engineering, 2009
This paper discusses a finite element analysis of the Bauschinger effect in the reverse cup drawing process, taken from the NUMISHEET′99 (Gelin and Picart, 1999) benchmark. In order to study the Bauschinger effect, several hardening models are considered
M. Kadkhodayan, J. Mosayebi
doaj   +1 more source

Seismic performance evaluation of a century‐old RC columns for railway's structural concrete

Structural Concrete, Volume 27, Issue 2, Page 2101-2125, April 2026.
Abstract Since the Great Kanto Earthquake of 1923 in Japan, reinforced concrete (RC) has been adopted for railway bridge piers, and some of these structures, now over 100 years old, continue to support transportation in the capital city of Tokyo. Evaluating the seismic performance of these few remaining RC structures has become an urgent issue. Because
Kousuke Kuwakino, Chikako Fujiyama, Koichi Maekawa   +2 more
wiley   +1 more source

Molecular dynamics simulation of reinforcement mechanism of graphene/aluminum composites and microstructure evolution

Journal of Materials Research and Technology, 2023
Graphene/Aluminum (Gr/Al) composites with different graphene chirality and distribution patterns were established. The contribution of graphene interfaces to the mechanical properties of composites was investigated by using molecular dynamics methods ...
Jinjie Zhou, Jinchuan Shen, Wenying Yue, Yao Liu, Zemei Chen   +4 more
doaj   +1 more source

Constitutive model for plasticity in an amorphous polycarbonate [PDF]

, 2007
A constitutive model for describing the mechanical response of an amorphous glassy polycarbonate is proposed. The model is based on an isotropic elastic phase surrounded by an SO(3) continuum of plastic phases onto which the elastic phase can collapse ...
Fortunelli, A., Ortiz, M.
core   +1 more source

Simulation‐Based Assessment of Second‐Order Residual Stress Fields on the Fatigue Performance of Silicon‐Strengthened Ferritic Ductile Irons

Advanced Engineering Materials, Volume 28, Issue 6, 18 March 2026.
This work presents a simulation‐based framework based on representative volume elements (RVEs) that explicitly incorporates process‐induced second‐order residual stresses into the fatigue strength assessment of ductile cast iron (DCI). For the first time, this approach enables a direct evaluation of the influence of second‐order residual stress fields ...
Lutz Horbach, Xuemei Lyu, Jiali Zhang, Felix Weber, Christoph Broeckmann   +4 more
wiley   +1 more source

Back stress quantification in heterostructured metals: a comparative study of tension-compression and loading-unloading-reloading tests

Materials Research Letters
The Bauschinger effect, characterized by a reduction in yield stress upon load reversal, plays a critical role in both springback prediction and the understanding of back stress-mediated strengthening in emerging heterostructured materials. In this study,
Gang Hee Gu, Yongju Kim, Hyoung Seop Kim
doaj   +1 more source