Results 51 to 60 of about 4,749 (165)

Comparative modelling of crack propagation in elastic–plastic materials using the meshfree local radial basis point interpolation method and eXtended finite-element method [PDF]

Royal Society Open Science, 2019
The modelling and understanding of crack propagation for elastic–plastic materials is critical in various engineering applications, such as safety analysis of concrete structures and stability analysis of rock slopes.
Yazhe Li, Nengxiong Xu, Jinzhi Tu, Gang Mei   +3 more
doaj   +1 more source

Macroscopic material degradation model of Norway spruce clear wood for XFEM

Results in Materials, 2023
The study aims at investigating the failure behavior of Norway spruce clear wood specimens using XFEM by modeling earlywood and latewood growth rings.
Tamás Király, Zsolt Karácsonyi, Rudolf Polgár   +2 more
doaj   +1 more source

Numerical Generation of Mode I Stress Intensity Factors for Narrow Elliptical Cracks in Round Bars

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
Summary The finite element model can replicate solutions found in the literature. The numerical crack tip singularity is analyzed in detail. Geometric correction factors decrease as the surface crack narrows. The polynomial fitting enables precise reproduction of SIF solutions.
Unai Eibar, Aritz Dorronsoro, José Manuel Martínez‐Esnaola   +2 more
wiley   +1 more source

Estimation of Fracture path in the Structures and the Influences of Non-singular term on crack propagation [PDF]

Journal of Hydraulic Structures, 2017
In the present research, a fully Automatic crack propagation as one of the most complicated issues in fracture mechanics is studied whether there is an inclusion or no inclusion in the structures.
AbdolGhafoor Khademalrasoul, R. Maghsoudi   +1 more
doaj   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, Volume 28, Issue 17, 9 September 2026.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Reliable Structural Stability and Damage Control of Concrete Gravity Dams During Earthquakes

Journal of Studies in Civil Engineering
In this work, meta models considering the non-linearity of the problem are dedicated to determining the displacements of the crest and the foundation of the Koyna dam model.
Nazim Abdul Nariman, Ayad Mohammed Ramadan, Rawshan Ali, Raja Rizwan Hussain, Shallaw Abdullah Saleh   +4 more
doaj   +1 more source

Convergence Investigation of XFEM Enrichment Schemes for Modeling Cohesive Cracks

Mathematics, 2022
When simulating cohesive cracks in the XFEM framework, specific enrichment schemes are designed for the non-singular near-tip field and an iteration procedure is used to solve the nonlinearity problem.
Guangzhong Liu, Jiamin Guo, Yan Bao
doaj   +1 more source

Qualitative Analysis of the Influence of Cooling Time Δt8/5 on Paris Equation for HSLA Steel S960QL

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 9, Page 3909-3918, September 2026.
ABSTRACT This paper examines the influence of cooling time in the temperature interval from 800°C to 500°C (Δt8/5) on the Paris law parameters C and m for HSLA steel. Fatigue crack growth tests were performed on specimens machined from S960QL steel plates subjected to different cooling times.
I. Dunđer, P. Konjatić, M. Dunđer, I. Gelo   +3 more
wiley   +1 more source

Adaptive Matrix‐Free Simulations of Fluid‐Filled Phase‐Field Fractures With Fixed‐Stress Coupling and Fracture‐Width Computation

International Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT Fluid‐filled phase‐field fracture simulations require robust, scalable solvers that can handle strongly nonlinear, non‐smooth mechanics and tightly coupled flow on locally refined meshes. In this work, we develop an adaptive finite element framework for quasi‐static, fluid‐filled phase‐field fractures that combines semi‐smooth Newton methods ...
Leon M. Kolditz, Viktor Kosin, Sanghyun Lee, Thomas Wick   +3 more
wiley   +1 more source

Hydraulic fracturing simulation of soils based on XFEM

Yantu gongcheng xuebao, 2020
Hydraulic fracture will have a serious negative impact on the safety of core rockfill dams. Macroscopically, the hydraulic fracture of soils can be regarded as the failure process of further development of local cracks (weak surfaces) under the action of
WANG Xiang-nan 1, LI Quan-ming 1, 2, YU Yu-zhen 1, LÜ He 1
doaj   +1 more source