Experimental and Numerical Analysis of Damage in Woven GFRP Composites Under Large-deflection Bending

Ullah, Himayat; Harland, Andy R.; Silberschmidt, Vadim V.

doi:10.1007/s10443-011-9242-7

Cited by 49 publications

(23 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 1 lists 45 references published between 2008 and 2015 in which this element is used. ABAQUS also offers the 6 node, three dimensional cohesive element COH3D6 to be used with tetrahedral solid elements [204][205][206][207][208] and the 4 node, two-dimensional cohesive element COH2D4 [209][210][211]. Cohesive elements are also available in many commercial finite element programs including LS-DYNA, MSC.Marc and ANSYS [212].…”

Section: Applications Of Cohesive Elementsmentioning

confidence: 99%

Cohesive zone models and impact damage predictions for composite structures

2015

View full text Add to dashboard Cite

This article surveys existing cohesive zone models (CZM) and their use in numerical simulations for analysis impacts on composite structures and predicting the damage induced. These models are used for matrix cracks and delamination. The first part of article gives the required background on failure criteria for predicting the onset of delaminations, on fracture mechanics and the various types of CZM. The second part discusses applications of CZM to several types of impact problems with composite structures. Applications for these models to other problems are briefly mentioned at the end. CZM are now part of state of the art numerical simulations with progressive damage analysis.

show abstract

Section: Applications Of Cohesive Elementsmentioning

confidence: 99%

Cohesive zone models and impact damage predictions for composite structures

2015

View full text Add to dashboard Cite

show abstract

“…These settings resulted in tomograms with resolution of 11 mm. Specifications of the system employed for CT scanning can be found elsewhere [9,10].…”

Section: Micro Computed Tomography Analysis Of Damagementioning

confidence: 99%

Characterisation of mechanical behaviour and damage analysis of 2D woven composites under bending

Ullah

Harland

Silberschmidt

2015

Composites Part B: Engineering

Self Cite

View full text Add to dashboard Cite

Additional Information:• NOTICE: this is the author's version of a work that was accepted for publication in Composites Part B: Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document.Changes In this paper, flexural loading of woven carbon fabric-reinforced polymer laminates is studied using a combination of experimental material characterisation, microscopic damage analysis and numerical simulations. Mechanical behaviour of these materials was quantified by carrying out tensile and largedeflection bending tests. A substantial difference was found between the materials' tensile and flexural properties due to a size effect and stress stiffening of thin laminates. A digital image-correlation technique capable of full-field strain-measurement was used to determine in-plane shear properties of the studied materials. Optical microscopy and micro-computed tomography were employed to investigate deformation and damage mechanisms in the specimens fractured in bending. Various damage modes such as matrix cracking, delaminations, tow debonding and fibre fracture were observed in these microstructural studies. A two-dimensional finite-element (FE) model was developed to analyse the onset and propagation of inter-ply delamination and intra-ply fabric fracture as well as their coupling in the fractured specimen. The developed FE model provided a correct prediction of the material's flexural response and successfully simulated the sequence and interaction of damage modes observed experimentally.

show abstract

“…CZEs have the ability to capture the onset and propagation of delamination [10,15,16]. The cohesive behaviour assumes that failure of elements is characterized by progressive degradation of the material stiffness, which is driven by a damage process.…”

Section: Interlaminar Damage Modellingmentioning

confidence: 99%