A modelling framework for composites containing 3D reinforcement

Stig, Fredrik; Hallström, Stefan

doi:10.1016/j.compstruct.2012.03.009

Cited by 89 publications

(50 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The 'initial metric method' in FE code PAM-CRASH was then used to deform the initial mesh towards the reference mesh whilst being bounded by moulding plates and preventing any yarn interpenetration. Stig and Hallström proposed a fundamentally similar technique involving the expansion of yarns, while utilising a slightly different modelling approach [20,21]. Here, the initial geometry was similar to that used by Pickett et al …”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of 3D woven preform deformations

Green¹,

Long²,

Said³

et al. 2014

Composite Structures

139

View full text Add to dashboard Cite

In order to accurately predict the performance of 3D woven composites, it is necessary that realistic textile geometry is considered, since failure typically initiates at regions of high deformation or resin pockets. This paper presents the development of a finite element model based on the multi-chain digital element technique, as applied to simulate weaving and compaction of an orthogonal 3D woven composite. The model was reduced to the scale of the unit cell facilitating high fidelity results combined with relatively fast analysis times. The results of these simulations are compared with micro computed tomography (CT) scans of a dry specimen of fabric subjected to in-situ compaction. The model accurately depicted all of the key features of the fabric including yarn waviness and cross-sectional shapes as well as their development with compaction. A parametric study is presented to characterise the effect of the model inputs on the analysis speed and accuracy.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical modelling of 3D woven preform deformations

Green¹,

Long²,

Said³

et al. 2014

Composite Structures

139

View full text Add to dashboard Cite

show abstract

“…Another virtual testing scheme for textile composites developed in 2012, with a emphasis on geometric modelling, was developed by Stig and Hallström [10,69]. The virtual testing framework developed by the authors was designed to determine the elastic response of three-dimensionally (3D) reinforced woven composites.…”

Section: Figurementioning

confidence: 99%

“…Over the last two decades, virtual testing of heterogeneous materials has been generally accomplished by numerical modelling tools after the finite element method (FEM) [10,12,13].…”

Section: Virtual Testing: An Overviewmentioning

confidence: 99%

“…The virtual testing framework developed by the authors was designed to determine the elastic response of three-dimensionally (3D) reinforced woven composites. [10,70]. Homogenized elastic properties of the textile composites were derived using the virtual framework.…”

Section: Figurementioning

confidence: 99%

“…Therefore such developments have resulted in various forms of virtual laboratories that could eventually become substitutes to physical experiments under certain conditions [7]. Typical examples of virtual experiments [2,5,6] are described by the originating authors using various keywords as: computational experiments [8], virtual laboratories [9], numerical testing machines [7], virtual frameworks [10,11], immersive virtual environments [12], in-silico experiments [13], etc. In the context of this work, the authors will make interchangeable use of any of the following terms to refer to a virtual testing framework: virtual laboratory, virtual testbed, and virtual framework.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Virtual testing of advanced composites, cellular materials and biomaterials: A review

Okereke

Akpoyomare

Bingley

2014

Composites Part B: Engineering

View full text Add to dashboard Cite

Please cite this article as: Okereke, M.I., Akpoyomare, A.I., Bingley, M.S., Virtual testing of advanced composites, cellular materials and biomaterials: a review, Composites: Part B (2014), doi: http://dx.doi.org/10. 1016/ j.compositesb.2014.01.007 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractThis paper documents the emergence of virtual testing frameworks for prediction of the constitutive responses of engineering materials. A detailed study is presented, of the philosophy underpinning virtual testing schemes: highlighting the structure, challenges and opportunities posed by a virtual testing strategy compared with traditional laboratory experiments. The virtual testing process has been discussed from atomistic to macrostructural lengthscales of analyses. Several implementations of virtual testing frameworks for diverse categories of materials are also presented, with particular emphasis on composites, cellular materials and biomaterials (collectively described as heterogeneous systems, in this context). The robustness of virtual frameworks for prediction of the constitutive behaviour of these materials is discussed. The paper also considers the current thinking on developing virtual laboratories in relation to availability of computational resources as well as the development of multi-scale material model algorithms. In conclusion, the paper highlights the challenges facing developments of future virtual testing frameworks. This review represents a comprehensive documentation of the state of knowledge on virtual testing from microscale to macroscale length scales for heterogeneous materials across constitutive responses from elastic to damage regimes.

show abstract