Results 51 to 60 of about 4,438,483 (347)

Crack tip solution for Mode III cracks in spring interfaces

open access: yesEngineering Fracture Mechanics, 2023
Considering an infinite linear elastic isotropic solid in antiplane shear, the Mode III crack-tip solution for a semi-infinite crack located in a straight spring interface is systematically studied for the first time. A new analytic expression for this crack-tip solution is given in the form of a double asymptotic series of the main and the so-called ...
Sara Jiménez-Alfaro, Vladislav Mantič
openaire   +3 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Crack Mode in High Temperature Multiaxial Low Cycle Fatigue

open access: yes, 1989
This paper describes the correlation of high temperature multiaxial low cycle fatigue life with different fracture mode. Crack opening displacement(COD) was analyzed by FEM for mode I, II and III cracks.
M. Sakane, M. Ohnami
semanticscholar   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

FREE VIBRATION ANALYSIS OF A SIMPLY SUPPORTED BEAM WITH A VERTICAL EMBEDDED CRACK

open access: yesJixie qiangdu, 2016
Local stiffness and performances of a beam structure will be changed by a crack,which causes changes in mode parameters. Focused on this problem,a simply supported beam is studied based on finite element method.
SONG XiaoHua, LIU Jing
doaj  

A unique fracture in fatigue of age-hardened Al alloys and its macro and microscopic aspects

open access: yesNihon Kikai Gakkai ronbunshu, 2017
There are many studies reported that a fatigue crack propagated in a tensile mode macroscopically and the fracture surface was mainly occupied by striations in many metals.
Norio KAWAGOISHI   +4 more
doaj   +1 more source

Crack propagation in fracture mechanical graded structures [PDF]

open access: yesFracture and Structural Integrity, 2015
The focus of manufacturing is more and more on innovative and application-oriented products considering lightweight construction. Hence, especially functional graded materials come to the fore.
B. Schramm, H.A. Richard
doaj   +1 more source

Vertical Transient Response Analysis of a Cracked Jeffcott Rotor Based on Improved Empirical Mode Decomposition

open access: yesVibration, 2022
The crack-induced changes in the vertical transient response of a rotating shaft–disc system, Jeffcott rotor, are investigated for transverse crack detection. The crack is considered as a breathing crack.
Hamid Khorrami   +2 more
doaj   +1 more source

Application of local and non-local approaches to multiple fatigue crack initiation and propagation [PDF]

open access: yes, 2003
Fatigue strength conditions presented in terms of normalized equivalent stress functionals defined on loading processes are used to unite the stages of material damage with fatigue crack initiation and multiple crack propagation under arbitrary loading ...
Mikhailov, SE, Namestnikova, IV
core  

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