Results 21 to 30 of about 515 (146)

On the evaluation of the stress intensity factor in calving models using linear elastic fracture mechanics

Journal of Glaciology, 2018
We investigate the appropriateness of calving or crevasse models from the literature using linear elastic fracture mechanics (LEFM). To this end, we compare LEFM model-predicted stress intensity factors (SIFs) against numerically computed SIFs using the ...
STEPHEN JIMÉNEZ, RAVINDRA DUDDU
doaj   +1 more source

Investigating Fracture Behavior of Lattice Structures Using the XFEM and Equivalent Solid Material Model Techniques

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study aims to numerically investigate the mode I, II, and III fracture behaviors of additively manufactured degradable, bioplastic polylactic acid (PLA) lattice specimens. Numerical simulations were performed using the eXtended Finite Element Method (XFEM) based on the extracted PLA's mechanical and fracture material properties.
Bahman Paygozar, Recep M. Gorguluarslan
wiley   +1 more source

Crack Driving Force Calculation for a Railway Wheel Considering Thermoplastic Properties of the Wheel Material [PDF]

International Journal of Railway Research, 2020
In this paper, the driving force calculation of a cracked railway wheel is studied, and the effects of thermal loads due to braking, train speed, and elastic-plastic material model are considered.
Azade Haidari, Parisa Hosseini Tehrani
doaj  

Fatigue Crack Modeling of Railheads Using a Nonlinear Cohesive Zone Model

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 9, Page 3738-3750, September 2026.
ABSTRACT Subsurface fatigue crack growth within railheads can be deleterious leading to catastrophic failures in rails. This study aims to model the fatigue crack growth originating at the subsurface level within railheads. Towards that end, a finite element modeling approach is utilized wherein complex crack growth is explicitly modeled using a ...
Santosh Reddy Kommidi, Hesam Mortazavi, Yong‐Rak Kim, David H. Allen   +3 more
wiley   +1 more source

In Situ Mechanical Characterization of the Mixed-Mode Fracture Strength of the Cu/Si Interface for TSV Structures

Micromachines, 2019
In situ nanoindentation experiments have been widely adopted to characterize material behaviors of microelectronic devices. This work introduces the latest developments of nanoindentation experiments in the characterization of nonlinear material ...
Chenglin Wu, Congjie Wei, Yanxiao Li
doaj   +1 more source

Inductive Differential Constraint Method: Symbolic Regression‐Based Partial Differential Equation Regularization for Fatigue Crack Growth Prediction

International Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT This study introduces the inductive differential constraint method (IDCM), a data‐informed structural regularization framework that enhances neural network predictions under data‐scarce regimes by enforcing invariant differential structures extracted from simulation data.
Rekisei Ozawa, Yoshitaka Wada
wiley   +1 more source

Investigating Crack Resistance Behavior of Polypropylene Using J integral, J‐R Curve and Fractographic Analysis

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 8, Page 3404-3419, August 2026.
ABSTRACT In this study, the fracture response of polypropylene (PP) was assessed using J‐integral evaluation, J‐R curve construction, and fractography examination. J‐R and load–displacement curves were analyzed to determine critical loads and estimate J‐integral values based on standards established for polymer fracture testing, which led to the ...
N. Choupani, M. Shameli, E. Haddadi, P. Aydiner   +3 more
wiley   +1 more source

Simulation of Quasi-Static Crack Propagation by Adaptive Finite Element Method

Metals, 2021
The finite element method (FEM) is a widely used technique in research, including but not restricted to the growth of cracks in engineering applications.
Abdulnaser M. Alshoaibi, Yahya Ali Fageehi   +1 more
doaj   +1 more source

Numerical Investigation of Stress Intensity and Geometry Correction Factors in Welded Longitudinal Stiffener Details

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 7, Page 2654-2669, July 2026.
ABSTRACT The safe operation of aging steel railway bridges requires reliable fatigue assessment of welded structural details. Welded longitudinal stiffeners, while not directly loaded, influence structural stiffness and are susceptible to fatigue cracking at weld transitions.
Dorina Siebert, Philipp Stangl, Christina Radlbeck, Martin Mensinger   +3 more
wiley   +1 more source

Stress singularities in CLT with holes and notches: A unified FE–LEFM framework validated on extensive experimental evidence

Results in Engineering
Cross-laminated timber (CLT) members with geometric discontinuities such as holes and notches exhibit pronounced stress concentrations, which lead to stress singularities in linear elastic finite element (FE) analyses and complicate structural ...
Markus Detter, Georg Hochreiner, Markus Lukacevic, Josef Füssl   +3 more
doaj   +1 more source