Journal ArticleDOI
Damage propagation in CFRP laminates subjected to low velocity impact and static indentation
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In this paper, a damage accumulation mechanism in cross-ply CFRP laminates was described for out-of-plane loading drop-weight impact and static indentation tests.Abstract:
This paper describes a damage accumulation mechanism in cross-ply CFRP laminates [02/902]2S subjected to out-of-plane loading Drop-weight impact and static indentation tests were carried out, and read more
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Journal ArticleDOI
Finite element modelling of damage induced by low-velocity impact on composite laminates
D Feng,Francesco Aymerich +1 more
TL;DR: Progressive damage models based on continuum damage mechanics were used in combination with cohesive interface elements to predict the structural response and the failure mechanisms of composite laminates subjected to low-velocity impact.
Journal ArticleDOI
Modelling discrete failures in composites with interface elements
TL;DR: In this paper, the application of cohesive zone interface elements to modeling discrete matrix dominated failures in polymer composites is reviewed, and it is shown that because they can accurately represent the physical mechanisms controlling damage development and failure, they are able to give excellent simulations of a wide variety of phenomena including delamination, laminate in-plane failure, behaviour at notches, impact damage and structural failure due to debonding.
Journal ArticleDOI
Failure mechanisms and damage evolution of laminated composites under compression after impact (CAI): Experimental and numerical study
X.C. Sun,Stephen R. Hallett +1 more
TL;DR: In this paper, the authors investigated the key driving mechanisms and damage evolution of the compressive failure of laminated composites containing BVID using compression after impact and indentation (CAI) tests.
Journal ArticleDOI
Simulation of multiple delaminations in impacted cross-ply laminates using a finite element model based on cohesive interface elements
TL;DR: In this article, the capability of a finite element model based on cohesive interface elements to simulate complex three-dimensional damage patterns in composite laminates subjected to low-velocity impact was investigated.
Journal ArticleDOI
Damage characterization in thin-ply composite laminates under out-of-plane transverse loadings
TL;DR: In this paper, the damage characteristics of carbon fiber/toughened epoxy thin-ply laminates subjected to transverse loadings were investigated, and it was clarified that accumulated delamination position has a significant effect on the fiber fractures during the indentation.
References
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Journal ArticleDOI
Yielding of steel sheets containing slits
TL;DR: In this article, a relation between extent of plastic yielding and external load applied was investigated, and panels containing internal and edge slits were loaded in tension and lengths of plastic zones were measured.
Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Journal ArticleDOI
Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements
TL;DR: In this article, fracture mechanics is introduced into finite element analysis by means of a model where stresses are assumed to act across a crack as long as it is narrowly opened, which may be regarded as a way of expressing the energy adsorption in the energy balance approach.
Book ChapterDOI
The mathematical theory of equilibrium cracks in brittle fracture
TL;DR: In this paper, the authors present a unified view of the way basic problems in the theory of equilibrium cracks are formulated and discuss the results obtained thereby, and the object of the theory is the study of the equilibrium of solids in the presence of cracks.
Journal ArticleDOI
A Continuum Model for Void Nucleation by Inclusion Debonding
TL;DR: In this paper, a boundary value problem simulating a periodic array of rigid spherical inclusions in an isotropically hardening elastic-viscoplastic matrix is analyzed and the effect of the triaxiality of the imposed stress state on nucleation is studied and the numerical results are related to the description of void nucleation within a phenomenological constitutive framework.
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