Overcoming the cohesive zone limit in composites delamination: modeling with slender structural elements and higher‐order adaptive integration
Sign Up to like & getrecommendations! Published in 2020 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.6497
Abstract: Cohesive element (CE) is a well‐established finite element for fracture, widely used for the modeling of delamination in composites. However, an extremely fine mesh is usually needed to resolve the cohesive zone, making CE‐based delamination… read more here.
Keywords: zone limit; delamination; cohesive zone; structural elements ... See more keywords
Observation of the Effect of Various Operating Factors on the Cohesive Zone Using the Blast Furnace Irregularity Simulator
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DOI: 10.1002/srin.202000315
Abstract: The blast furnace (BF) process is highly complex, involving multiple phases (gases, granular solids, liquids, and powders) undergoing various chemical and physical phenomena. Any improvement in BF productivity under a given set of operating conditions… read more here.
Keywords: cohesive zone; zone; blast furnace; irregularity simulator ... See more keywords
Determination of crack opening displacement and critical load parameter within a cohesive zone model
Sign Up to like & getrecommendations! Published in 2019 at "Continuum Mechanics and Thermodynamics"
DOI: 10.1007/s00161-018-0712-0
Abstract: A semi-analytical approach for investigation of the stress and strain state of a cracked body is presented. A cohesive zone model is used to take into account the failure zones which are formed in front… read more here.
Keywords: cohesive zone; determination crack; zone model; crack ... See more keywords
A semi-analytical solution method for problems of cohesive fracture and some of its applications
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DOI: 10.1007/s10704-018-0295-6
Abstract: Cohesive zone models are extensively used for the failure load estimates for structure elements with cracks. This paper focuses on some features of the models associated with the failure load and size of the cohesive… read more here.
Keywords: methodology; fracture; cohesive zone; solution ... See more keywords
A cohesive zone model for self-similar fractal crack propagation
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-017-0923-5
Abstract: Cracks in the nature have been proven to be fractal by many experiments. Despite the fractal fracture mechanics has been developed by many researchers, fractal geometry still has few applications in analysis of engineering structures.… read more here.
Keywords: propagation; cohesive zone; crack propagation; fractal crack ... See more keywords
Mixed mode cohesive zone modelling and analysis of adhesively bonded composite T-joint under pull-out load
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-018-1056-1
Abstract: The failure behaviour of three different configurations of adhesively bonded carbon fibre composite T-joints subjected to pull-out load is investigated. Finite element analysis is carried out on the carbon fibre composite T-joint models. A non-linear,… read more here.
Keywords: pull load; composite joint; adhesively bonded; cohesive zone ... See more keywords
Parameters prediction of cohesive zone model for simulating composite/adhesive delamination in hygrothermal environments
Sign Up to like & getrecommendations! Published in 2019 at "Composites Part B: Engineering"
DOI: 10.1016/j.compositesb.2019.03.002
Abstract: Abstract In this paper, moisture parameters of adhesive SY-14M-III and composite T800/AC531 were firstly measured, which were used for the following moisture diffusion investigations. Then, double cantilever beam (DCB) tests and end notched flexure (ENF)… read more here.
Keywords: cohesive zone; zone model; composite adhesive; model simulating ... See more keywords
Failure load analysis of C-shaped composite beams using a cohesive zone model
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DOI: 10.1016/j.compstruct.2017.10.035
Abstract: Abstract Delamination-based failure is commonly observed in curved composite structures owing to the significant curvature-induced through-thickness stresses present therein. To gain further insights on this failure mode, we investigated the initiation/propagation of delamination in C-shaped… read more here.
Keywords: shaped composite; cohesive zone; load; composite beams ... See more keywords
Numerical investigation of the impact fracture performance of a composite laminated windshield considering the Park-Paulinho-Roesler cohesive zone model
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DOI: 10.1016/j.compstruct.2020.112568
Abstract: Abstract The fracturing performance of the windshield glazing, as a simple sandwiched composite structure manufactured by bonding glass layers with polyvinyl butyral (PVB) interlayers, is indispensable to investigate the vehicle–pedestrian accidents. This paper presents an… read more here.
Keywords: fracture; cohesive zone; impact; model ... See more keywords
A string-based cohesive zone model for interlaminar delamination
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2017.05.010
Abstract: Abstract The objective of this paper is to develop a string-based cohesive zone model (CZM) for interlaminar delamination, whose associated cohesive elements behave reliably and consistently when deformed along complex separation paths and can display… read more here.
Keywords: interlaminar delamination; cohesive zone; model; string based ... See more keywords
Coupling damage and cohesive zone models with the Thick Level Set approach to fracture
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DOI: 10.1016/j.engfracmech.2017.12.036
Abstract: Abstract This paper couples bulk damage modeling and cohesive zone modeling to get the benefits of both. Damage brings the directionality for the crack propagation as well as the possibility of crack branching while cohesive… read more here.
Keywords: zone; cohesive zone; thick level; set approach ... See more keywords