Results 31 to 40 of about 31,412 (196)

The Breakdown of Linear Elastic Fracture Mechanics near the Tip of a Rapid Crack

open access: yes, 2008
We present high resolution measurements of the displacement and strain fields near the tip of a dynamic (Mode I) crack. The experiments are performed on polyacrylamide gels, brittle elastomers whose fracture dynamics mirror those of typical brittle ...
Ariel Livne   +5 more
core   +1 more source

Measurement of Displacement Fields around Crack Tip in Brittle and Ductile Polymers.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1996
Moire interferometry was utilized to study fracture behavior of polymer specimens under mode I loading. Displacement fields around a crack tip were experimentally determined for two kind specimens of brittle and ductile polymers. The results were compared with the displacements given by linear fracture mechanics or HRR fields to study their ...
Junichi KUSUMOTO   +2 more
openaire   +2 more sources

Experimental evaluation of plasticity-induced crack shielding from crack tip displacements fields

open access: yesFrattura ed Integrità Strutturale, 2015
In this work it is proposed a methodology for the evaluation of plasticity-induced crack shielding from the analysis of the crack tip displacements fields measured by digital image correlation. This methodology is based on the evaluation of the stress intensity factors determined from the displacements fields measured at the vicinity of the tip of a ...
Vasco-Olmo, J.M., Díaz, F.A.
openaire   +4 more sources

On the experimental characterisation of crack tip displacement fields on nonplanar elements: Numerical and experimental analysis

open access: yesTheoretical and Applied Fracture Mechanics, 2023
T1, Q1 (Mechanics; IF 2023 = 5).
Camacho-Reyes, Alonso   +4 more
openaire   +4 more sources

Coarse-grained model of the J-integral of carbon nanotube reinforced polymer composites

open access: yes, 2016
The J-integral is recognized as a fundamental parameter in fracture mechanics that characterizes the inherent resistance of materials to crack growth.
Arash, Behrouz   +2 more
core   +1 more source

Predicting fatigue crack growth rate in a welded butt joint: The role of effective R ratio in accounting for residual stress effect [PDF]

open access: yes, 2009
A simple and efficient method is presented in this paper for predicting fatigue crack growth rate in welded butt joints. Three well-known empirical crack growth laws are employed using the material constants that were obtained from the base material ...
Servetti, Guido, Zhang, X.
core   +1 more source

A Fourth Order Formulation of DDM for Crack Analysis in Brittle Solids [PDF]

open access: yesAnalytical and Numerical Methods in Mining Engineering, 2017
A fourth order formulation of the displacement discontinuity method (DDM) is proposed for the crack analysis of brittle solids such as rocks, glasses, concretes and ceramics.
Abolfazl Abdollahipour   +3 more
doaj  

Experimental and numerical in-plane displacement fields for determine the J-integral on a PMMA cracked specimen

open access: yesEPJ Web of Conferences, 2010
Contrary to J-integral values calculated from the 2D numerical model, calculated J-integrals [1] in the 3D numerical and 3D experimental cases are not very close with J-integral used in the literature.
Cottron M., Hedan S., Valle V.
doaj   +1 more source

Quasicontinuum simulation of fracture at the atomic scale [PDF]

open access: yes, 1998
We study the problem of atomic scale fracture using the recently developed quasicontinuum method in which there is a systematic thinning of the atomic-level degrees of freedom in regions where they are not needed.
Miller, R.   +3 more
core   +1 more source

Frictional interface crack-tip singular stress field in anisotropic [PDF]

open access: yes, 2013
This study presents the asymptotic displacement and stress fields at the crack tip of frictional interface where slip can occur along the interface between two anisotropic composite laminates.
Chen, Hua-Peng
core  

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