Results 41 to 50 of about 6,057 (299)

Crack tip fields in a fiber-reinforced hyperelastic sheet: Competing roles of fiber and matrix stiffening [PDF]

, 2021
Fiber-reinforced materials are widely observed in biological tissue such as human arteries and tendons. Characterizing the influence of fibers on crack-tip fields in such nonlinear materials undergoing large deformation is an important precursor to ...
Moran, Brian, Liu, Yin
core   +1 more source

Identification of the plastic zone using digital image correlation [PDF]

Fracture and Structural Integrity, 2014
In this paper Digital Image Correlation (DIC) is used to study the evolution of the plastic zone close to a crack tip. A modified CT-specimen was used in order to fulfill the plane stress condition.
M. Rossi, M. Sasso, G. Chiappini, E. Mancini, D. Amodio   +4 more
doaj   +3 more sources

Mode I and Mode II Crack Tip Asymptotic Fields with Strain Gradient Effects [PDF]

, 2001
The strain gradient effect becomes significant when the size of fracture process zone around a crack tip is comparable to the intrinsic material length l, typically of the order of microns.
Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China., 陈少华, 王自强   +2 more
core   +2 more sources

Research on hydrogen induced cracking behavior and service performance of metal pipeline material

Frontiers in Materials
This study systematically investigates the fracture behavior of X80 pipeline steel welded joints under hydrogen-induced cracking (HIC) conditions through combined experimental characterization and numerical simulation.
Yongjun Jia, Yongjun Jia, He Xue, Zheng Wang   +3 more
doaj   +1 more source

Characterisation of crack tip fields under non-uniform fatigue loading [PDF]

Fracture and Structural Integrity, 2013
The paper analyses previously reported work, which uses digital image correlation to measure fatigue crack closure. As well as determining crack opening loads, the information on crack shape may be used to estimate the stress intensity factor, as well as
D. Nowell, M.E. Kartal, P.F.P. de Matos
doaj   +2 more sources

Effect of T‐Stress on Crack‐Tip Stress Field and Crack Propagation of Concrete

Mathematical Problems in Engineering, 2023
In order to predict the fracture toughness and propagation of the mixed mode fracture of concrete, the modified MTS (maximum tangential stress) criterion combined with T‐stress was presented. The modified MTS criterion uses a two‐parameter model (stress intensity factor K and T‐stress) to describe the concrete’s fracture.
Shaoqing Zhou, Limin Li
openaire   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source

Multiparametric presentation of the crack-tip fields in the vicinity of longitudinal shear crack

Вестник Самарского университета: Естественнонаучная серия
The article is devoted to the study of the stress field at the tip of a longitudinal shear crack based on a multiparametric asymptotic representation of the stress field at the crack tip in a linearly elastic isotropic material.
Yulia N. Bakhareva
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source