Results 51 to 60 of about 334 (172)

Tangent modulus in numerical integration of constitutive relations and its influence on convergence of N-R method [PDF]

Applied and Computational Mechanics, 2009
For the numerical solution of elasto-plastic problems with use of Newton-Raphson method in global equilibrium equation it is necessary to determine the tangent modulus in each integration point. To reach the parabolic convergence of Newton-Raphson method
Poruba Z., Halama R.
doaj  

Elasto-plastic material model with damage parameter in metal fatigue [PDF]

Computer Methods in Materials Science, 2009
In this paper the numerical method for prediction of fatigue life of structure is presented. The finite element modelling and damage parameter calculation are based on the algorithm described originally by Chaboche (1987), Luccioni et al.
Tomasz Bednarek, Włodzimierz Sosnowski, Tomasz Szolc   +2 more
doaj   +1 more source

Improvement of the Nonlinear Damage Mathematical Model for Steel Components in Bridge Under Complex Stress

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To investigate the relationship between load, damage, and fatigue life of complex engineering components under stress, this paper modifies the existing continuous nonlinear damage model based on the distortion energy density theory to reflect the usage and stress characteristics of Q345 steel components in bridges.
Yonzhi Lin, Mingxian Yuan, Ping Liao, Wenchang He, Miaona You, Weifeng Chen, Lichuang Liu, Pengjiao Jia   +7 more
wiley   +1 more source

IMPLEMENTATION OF CONTINUUM DAMAGE IN ELASTO-VISCOPLASTIC CONSTITUTIVE EQUATIONS

TASK Quarterly, 2006
Modelling of the continuum damage framework is developed for application in the elasto-viscoplastic Chaboche constitutive model. A brief description of the basic variant of the Chaboche model equations is given, followed by a discussion of the most ...
ANDRZEJ AMBROZIAK, PAWEŁ KŁOSOWSKI, MICHAŁ NOWICKI, RUDIGER SCHMIDT   +3 more
doaj  

Mechanical Characterization and Damage Modeling of Adobe Blocks Stabilized With Natural Plant Fibers

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study evaluates the mechanical performance of adobe blocks stabilized with natural plant fibers derived from Hyparrhenia hirta (HH) and Stipa offneri (SO). To this end, adobe specimens were fabricated by incorporating plant fibers into the soil matrix at contents ranging from 0% to 1% by weight of soil, with increments of 0.2%.
Barthelemy Zra Mha, Roger Pierre Lemanle Sanga, Maxime Dawoua Kaoutoing, Claude Armand Moubeke, Guy Edgar Ntamack, Manoj Khandelwal   +5 more
wiley   +1 more source

Seismic Design Gaps and Link Innovations: Evaluating Gusset Connected Box and I‐Shaped Links in Multi‐Tiered EBFs

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study addresses a critical gap in seismic design codes by evaluating the nonlinear performance of multi‐tiered eccentrically braced frames (MT‐EBFs) and offering practical recommendations for future provisions. MT‐EBFs, an advanced variation of conventional EBFs, incorporate multiple tiers of links and braces within a single story, making them ...
Mohammad Rezaee, Abazar Asghari, Arnab Biswas   +2 more
wiley   +1 more source

Cyclic Elasto-Plastic Behaviour of 51CrV4 Steel for Railway Parabolic Leaf Spring Design

Applied Sciences
Parabolic leaf springs are components typically found in suspensions of freight railway rolling stock. These components are produced in high-strength alloyed steel, DIN 51CrV4, to resist severe loading and environmental conditions. Despite the material’s
Vítor M. G. Gomes, Rita Dantas, José A. F. O. Correia, Abílio M. P. de Jesus   +3 more
doaj   +1 more source

Micromechanical Modelling of the Cyclic Deformation Behavior of Martensitic SAE 4150—A Comparison of Different Kinematic Hardening Models

Metals, 2019
A fundamental prerequisite for the micromechanical simulation of fatigue is the appropriate modelling of the effective cyclic properties of the considered material.
Benjamin J. Schäfer, Xiaochen Song, Petra Sonnweber-Ribic, Hamad ul Hassan, Alexander Hartmaier   +4 more
doaj   +1 more source

Physics‐Informed Deep Learning Constitutive Model for Anisotropic and Pressure‐Dependent Behavior of Short Fiber‐Reinforced Polymers

International Journal for Numerical Methods in Engineering, Volume 126, Issue 19, 15 October 2025.
ABSTRACT Short fiber‐reinforced polymers (SFRPs) exhibit complex anisotropic, nonlinear, and pressure‐dependent behavior due to their heterogeneous microstructures. Conventional constitutive models, while accurate, require extensive parameter calibration and may lack generalization capability under varied loading conditions.
Aamir Dean, Vinayak B. Naik, Betim Bahtiri, Elsadig Mahdi, Pavan K. A. V. Kumar   +4 more
wiley   +1 more source

Modeling of Crack Propagation in Ductile Materials Under Cyclic, Proportional and Non‐Proportional Loading Conditions

Fatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 10, Page 4505-4516, October 2025.
ABSTRACT The paper addresses the numerical calculation of multi‐axial fatigue crack propagation in ductile materials under proportional and non‐proportional cyclic loading conditions. The analysis is based on a phase field fracture theory proposed in earlier work, which describes crack propagation on the basis of the evolution of plastic strain.
Aris Tsakmakis, Alwin Gibb, Michael Vormwald   +2 more
wiley   +1 more source