Results 31 to 40 of about 31,906 (280)
The post-yield fracture of a ductile polymer film: Notch quality, essential work of fracture, crack tip opening displacement, and J-integral [PDF]
, 2017 Double edge notched tension (DENT) specimens of a polyethylene terephthalate (PET) film were tested in an universal testing machine, measuring the displacements and the ligament lengths with a digital image correlation (DIC) system.
Arencón Osuna, David +3 more
core +2 more sources
Incremental displacement collocation method for the evaluation of tension softening curve of mortar [PDF]
, 2012 The tension softening curve (TSC), showing the relationship between the cohesive tensile stress and crack opening displacement, is the constitutive law of the cohesive crack model.
Chen, HHN, Kwan, AKH, Su, RKL
core +1 more source
MATEC Web of Conferences, 2018 The influence of plate thickness on the fatigue crack propagation behavior was studied by using center-notched specimens which were cut from injection-molded plates of short carbon-fiber reinforced polyphenylene sulfide (PPS) at two fiber angles relative
Shimizu Kenichi +2 more
doaj +1 more source
Materials Research Express, 2023 The cryogenic fracture toughness of the SA645/304L dissimilar weld, produced using continuous wave IPG fiber laser welding with a 0.3 mm beam offset towards the 304L side, and the microstructural effects on the fracture behavior were systematically ...
Fei Zhou +6 more
doaj +1 more source
Latin American Journal of Solids and StructuresThe purpose of this work is to investigate experimentally the effects of mixed-mode I/II loading on the fracture behavior of polymer mortars. Three point bend beam specimens with offcenter notch were used in plane-strain fracture toughness tests.
L.C.S. Nunes, J.M.L. Reis
doaj +1 more source
International Journal of Applied Mechanics and Engineering, 2020 The paper presents a comprehensive analysis of the stress field and selected triaxiality parameters near the crack tip for C(T) specimen dominated by the plane strain state using the finite element method.
M. Graba
doaj +1 more source
Fatigue life prediction of z-fibre pinned composite laminate under mode I loading [PDF]
, 2019 A hybrid method is presented combining linear elastic fracture mechanics with nonlinear damage mechanics that can predict the fatigue crack growth rate in z-fibre pinned composites under mode I loading.
Ayre, David +3 more
core +2 more sources
Journal of Materials Research and TechnologyThe evolution of residual stresses (RS) at a crack tip and associated changes in crack shielding effects during fatigue crack growth (FCG) has a first order effect on the fatigue life of welded joints.
Zhe Zhang +3 more
doaj +1 more source
Integral equations of a cohesive zone model for history-dependent materials and their numerical solution [PDF]
, 2014 A nonlinear history-dependent cohesive zone (CZ) model of quasi-static crack propagation in linear elastic and viscoelastic materials is presented. The viscoelasticity is described by a linear Volterra integral operator in time.
Atkinson +12 more
core +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source