Results 71 to 80 of about 968,727 (292)

Remote stress fracture criterion in peridynamics

Engineering with Computers
Abstract In this study, we propose a remote stress criterion for brittle fracture within the framework of peridynamics. The concept of bond stress is linked to the classical notion of local stress. An analytical and numerical investigation of bond stress near the crack tip is conducted using Sneddon-Williams asymptotic solutions for ...
Maksim Ignatev, Erkan Oterkus
openaire   +2 more sources

Rheumatoid arthritis, frailty, and outcomes of surgical hospitalizations: A national population‐based analysis

Arthritis Care &Research, Accepted Article.
OBJECTIVE Hospitalization, particularly for surgery, represents a period of heightened stress. We evaluated how frailty attenuates the association of rheumatoid arthritis (RA) with negative health outcomes after elective non‐cardiac surgery. METHODS We conducted a cross‐sectional study using the National Inpatient Sample (2018 to 2020), including ...
Ali Yazdanyar, Joshua Baker, Katherine D Wysham, Mohammed Yousufuddin, Farah Acher Kaiksow, Michael M. Ward   +5 more
wiley   +1 more source

Ductile crack propagation with the strain-energy density criterion

, 1985
The strain energy density criterion is used to characterize subcritical crack growth in a thin aluminum alloy sheet undergoing general yielding. A finite element analysis which incorporates both material and geometrical nonlinear behaviors of the cracked
Chow CL, Xu JL(徐纪林)
core   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane, Salama Makni, Mourad Kchaou, Ahmed El Hajjaji   +3 more
wiley   +1 more source

Microscopic fracture characterization and permeability evolutionary patterns of granites under cyclic thermal shock

Meitian dizhi yu kantan
ObjectiveThis study aims to reveal the microscopic damage characteristics and permeability evolutionary patterns of high-temperature granite reservoirs fractured under cyclic thermal shock produced by low-temperature fluids like drilling fluids and ...
Jiangfu HE, Chengcheng REN, Kun HE, Qihang YU, Xinru LI, Xu DENG   +5 more
doaj   +1 more source

Compression-shear fracture criteria for mixed mode I-II of open crack of rock-like brittle materials

Yantu gongcheng xuebao, 2017
In practical projects, structural fracture often undergoes complex stresses. The studies on the fracture mechanism of mixed mode cracks are of important theoretical significance and practical implication.
LI Bu , HUANG Run-qiu , WU Li-zhou
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Fracture mechanisms and failure criteria of adhesive joints and toughened epoxy adhesives [PDF]

, 2010
PhDAdhesive bonded applications are used widely in industry because of significant advantages such as uniform stress distribution, and the ability to join different materials.
Xu, Botao
core   +4 more sources

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Fracture Mechanics Investigation of Structures with Defects [PDF]

, 2013
Fracture mechanics plays an important role in the material science, structure design and industrial production due to the failure of materials and structures are paid high attention in human activities.
Li, Yong <1985>
core   +1 more source