Results 21 to 30 of about 654 (174)

A non-local continuum poro-damage mechanics model for hydrofracturing of surface crevasses in grounded glaciers

open access: yesJournal of Glaciology, 2020
Hydrofracturing can enhance the depth to which crevasses propagate and, in some cases, allow full depth crevasse penetration and iceberg detachment.
Ravindra Duddu   +2 more
doaj   +1 more source

Residual strength evaluation by DBEM for a cracked lap joint [PDF]

open access: yesFracture and Structural Integrity, 2016
The present work summarizes a numerical procedure aimed at the evaluation of the residual strength of a cracked lap joint, based on the competing failure mechanisms regulated by the R-curve analysis and plastic collapse.
R. Citarella
doaj   +1 more source

Navigated Transcranial Magnetic Stimulation: A Biologically Based Assay of Lower Extremity Impairment and Gait Velocity

open access: yesNeural Plasticity, 2017
Objectives. (a) To determine associations among motor evoked potential (MEP) amplitude, MEP latency, lower extremity (LE) impairment, and gait velocity and (b) determine the association between the presence of a detectable MEP signal with LE impairment ...
Heather T. Peters   +6 more
doaj   +1 more source

Experimental and Theoretical Fatigue Crack Propagation in Vitro of the Bovine and Human cortical Bone in Linear Elastic and Elastic-Plastic Fracture Mechanics [PDF]

open access: yesEngineering and Technology Journal, 2017
This study involved studying fatigue crack propagation in elastic-plastic and linear elastic fracture mechanics LEFM fracture mechanics EPFM for each bovine and cadaveric human cortical bone.
B.O. Bdaiwi, A.F. Abdul-kareem
doaj   +1 more source

Fracture Toughness Determination on an SCB Specimen by Meshless Methods

open access: yesApplied Sciences, 2022
This work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition.
Farid Mehri Sofiani   +2 more
doaj   +1 more source

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

open access: yesFatigue &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

Fatigue Crack Modeling of Railheads Using a Nonlinear Cohesive Zone Model

open access: yesFatigue &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   +3 more
wiley   +1 more source

Over-deterministic method: The influence of rounding numbers on the accuracy of the values of Williams’ expansion terms [PDF]

open access: yesFracture and Structural Integrity, 2017
A study on the accuracy of the values of Williams’ expansion terms influenced by rounding numbers is presented. The results are presented taking into account a three-point bend single edge notched beam.
Vladimir Ruzicka   +2 more
doaj   +2 more sources

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

open access: yesInternational 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

open access: yesFatigue &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   +3 more
wiley   +1 more source

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