Fracture toughness-based models for damage simulation of pultruded GFRP materials

Almeida-Fernandes, Lourenço; Silvestre, Nuno; Correia, João R.; Arruda, M.R.T.

doi:10.1016/j.compositesb.2020.107818

Cited by 19 publications

(17 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Four different GFRP materials (I152-CP, U150-ST, I200-FC and PL300-AP) will be considered to find suitable damage properties and to thoroughly investigate capabilities and limitations of CDMbased FE models containing linear softening in CODAM2. Almeida-Fernandes et al (2019, 2020a, 2020b conducted various experimental progressive fracture tests which will serve as reference for the numerical studies presented here. Note that the naming of the pultruded GFRP materials refers to the type of cross section (I, U or PLate), its height and manufacturer (Almeida-Fernandes et al, 2020a).…”

Section: Methodsmentioning

confidence: 99%

“…For example, Nunes et al (2017) and Li et al (2017) used solid finite elements to simulate buckling/crushing and transverse impact behavior of pultruded GFRPs, respectively. Almeida-Fernandes et al (2020a) used shell elements to simulate the evolution of damage in pultruded GFRPs subjected to progressive tensile fracture tests. To highlight the challenge and uncertainty around finding suitable input damage parameters, these three studies apply vastly different fiber fracture energies of 2.38 N/mm (Nunes et al, 2017), 55 N/ mm (Li et al, 2017) and 100 N/mm (Almeida-Fernandes et al, 2020a) for similar pultruded GFRPs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Deviation-based calibration for progressive damage analysis in pultruded glass fiber reinforced composites

Reiner

2022

International Journal of Damage Mechanics

View full text Add to dashboard Cite

This paper presents a systemic calibration methodology to efficiently simulate progressive damage evolution in four different pultruded glass fiber reinforced polymer (GFRP) composites using the strain-based COMposite DAMage Model (CODAM2) in the commercial finite element software LS-DYNA. In particular, Compact Tension (CT), scaled-up CT, and wide CT tests are simulated to find the best set of input parameters by considering four distinct indicators obtained from experimental and numerical load vs displacement data. By combining these indicators into a physically meaningful equivalent deviation value via a linear weighted-sum method, the results show that the most suited input damage variables yield physically accurate crack length predictions which underlines the robustness and accuracy of the proposed method. Furthermore, it is shown that the incorporation of bi-linear softening laws improves CODAM2 simulation results by up to 90%, however it also increases the number of parameters to be calibrated.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Deviation-based calibration for progressive damage analysis in pultruded glass fiber reinforced composites

Reiner

2022

International Journal of Damage Mechanics

View full text Add to dashboard Cite

show abstract

“…11 More precisely, many factors such as fibre 23 and matrix 24 type, fibre volume fraction, 25 fibre length, 11,26 fibre orientation, 27 dispersion state, 28 and interfacial bonding strength between fibres and plastic matrix 29 are of great importance for the overall performance of GFRP composites. 30 According to the technical literature, 31 two different failure mechanisms can be classified in unidirectional GFRP composites ( Figure 1):…”

Section: Fracture Behaviour Of Gfrp Composites: a Brief Reviewmentioning

confidence: 99%

“…This is probably due to the fact that fracture mechanisms significantly depend on both matrix and fibre material properties and their interfacial bonding properties 11 . More precisely, many factors such as fibre 23 and matrix 24 type, fibre volume fraction, 25 fibre length, 11,26 fibre orientation, 27 dispersion state, 28 and interfacial bonding strength between fibres and plastic matrix 29 are of great importance for the overall performance of GFRP composites 30 …”

Section: Fracture Behaviour Of Gfrp Composites: a Brief Reviewmentioning

confidence: 99%

Fracture toughness characterisation of a glass fibre‐reinforced plastic composite

Vantadori

Głowacka

Greco

et al. 2020

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

By examining the state of the art, it can be realised that few research works have been done on the fracture behaviour of plastic composites reinforced with continuous glass fibres. Therefore, the present paper deals with the fracture toughness of a unidirectional glass fibre-reinforced plastic (GFRP), such a parameter being analytically determined by means of the modified twoparameter model (MTPM). The input data of the MTPM are obtained from an experimental campaign related to three-point bending tests on single edgenotched specimens characterised by different sizes. The novelty of this research work is that the MTPM, originally proposed for isotropic materials, is here employed to estimate the fracture toughness of GFRPs characterised by orthotropic mechanical properties.

show abstract

“…In this regard, Almeida-Fernandes et al [5] developed numerical damage models calibrated with experimentally based fracture toughness parameters on the pultruded glass fiber reinforced polymers. Taylor et al [6] studied the fracture strength of brittle materials by the effect of stress concentrations through SIF calculation.…”

Section: Introductionmentioning

confidence: 99%

Fracture Toughness Determination on an SCB Specimen by Meshless Methods

2022

View full text Add to dashboard Cite

This work investigates fracture characteristics of a marble semi-circular bend (SCB) specimen with a pre-defined crack under a compressive loading condition. It aims at evaluating how the fracture toughness can be affected by the crack and span length variation. Numerically, the model is solved using meshless methods, extended to the linear elastic fracture mechanics (LEFM), resorting to radial point interpolation method (RPIM) and its natural neighbor versions (NNRPIMv1 and NNRPIMv2). Alternatively, to validate the meshless method results, the problem is resolved following the finite element method (FEM) model based on the standard 2D constant strain triangle elements. As a result, fracture toughness and the critical strain energy release rate are characterized following the testing method on the cracked straight through semi-circular bend specimen (CSTSCB). A comparison is drawn amongst the theoretical, meshless methods and FEM results to evaluate the capability of advanced numerical methods. Encouraging results have been accomplished leading to validate the supporting numerical methodologies.

show abstract

Fracture toughness-based models for damage simulation of pultruded GFRP materials

Cited by 19 publications

References 19 publications

Deviation-based calibration for progressive damage analysis in pultruded glass fiber reinforced composites

Deviation-based calibration for progressive damage analysis in pultruded glass fiber reinforced composites

Fracture toughness characterisation of a glass fibre‐reinforced plastic composite

Fracture Toughness Determination on an SCB Specimen by Meshless Methods

Contact Info

Product

Resources

About