A fracture behaviour evaluation of Glass/Elium150 thermoplastic laminate with the DCB test: Influence of loading rate and temperature

Cadieu, Lucien; Kopp, Jean-Benoît; Jumel, Julien; Béga, J.; Froustey, Catherine

doi:10.1016/j.compstruct.2020.112907

Cited by 6 publications

(6 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From Figure 7(A), the global set of results show that the initial specimen stiffness (the slope of the line in the linear portion of the curve) is not obviously affected in the range of temperatures tested, except for a very small decrease in stiffness for the DCB specimens that were tested at À20 C and 90 C. The slight difference in stiffness caused by temperature was also reported by Coronado et al [1] and Cadieu et al. [38] This may be due to the slight difference in initial crack length for the DCB specimens, or the integrated effect of composite components and the PTFE film. Further investigation is necessary to understand this and will be studied in future work.…”

Section: Load-displacement Curvessupporting

confidence: 76%

Temperature‐dependent interlaminar behavior of unidirectional composite laminates: Property determination and mechanism analysis

Cao

Meng

et al. 2021

Polymer Composites

View full text Add to dashboard Cite

Delamination damage is a critical concern for composites-especially for aircraft structures-considering their complex service conditions, which include extreme temperatures and impact threats. This study considers the effect of temperature (À20 C to 110 C) on the mode-I interlaminar failure behavior for unidirectional carbon/epoxy composite laminates, through a series of experiments.A simple double compliances method (DCM) without the measurement of crack length was employed to determine mode I interlaminar fracture toughness, and the accuracy of DCM at different temperatures was validated by comparing the results obtained from DCM with those calculated using ASTM methods. The comparison indicates that fracture toughness values determined from DCM

show abstract

Section: Load-displacement Curvessupporting

confidence: 76%

Temperature‐dependent interlaminar behavior of unidirectional composite laminates: Property determination and mechanism analysis

Cao

Meng

et al. 2021

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…The large instantaneous drop of load at lower temperatures could be attributed to brittleness in the composite that leads to a sudden release of the energy during crack propagation. However, for 110 °C, the higher temperatures increased the overall ductility of the adhesive, making crack propagation much smoother [ 19 ]. The effects of temperature on the increased ductility and gradual stress release during crack initiation are less well captured in cohesive models.…”

Section: Numerical Results and Analysismentioning

confidence: 99%

“…On the other hand, the ENF top roller moves downward at an increasing rate up to a maximum of 0.5 m/s. The loading rate at the time of crack initiation below 0.5 m/s ensures minimal effects on the cohesive properties [ 19 ]. To minimise computational time, the elements are reduced by using half models since both cases are symmetrical across the length.…”

Section: Finite Element Modellingmentioning

confidence: 99%

“…On the other hand, there are also plenty of authors who investigated temperature effects on pure composites. Cadieu et al [ 19 ] studied the effects of loading rate and temperature on composite thermoplastic laminates under Mode-I delamination, where they discovered that temperature below room temperature has almost no effect on fracture toughness. The effects of temperature ranging from –43 °C to 125 °C and moisture on delamination of carbon/epoxy composites were investigated by Davidson et al [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal Delamination Modelling and Evaluation of Aluminium–Glass Fibre-Reinforced Polymer Hybrid

et al. 2021

View full text Add to dashboard Cite

This paper aims to propose a temperature-dependent cohesive model to predict the delamination of dissimilar metal–composite material hybrid under Mode-I and Mode-II delamination. Commercial nonlinear finite element (FE) code LS-DYNA was used to simulate the material and cohesive model of hybrid aluminium–glass fibre-reinforced polymer (GFRP) laminate. For an accurate representation of the Mode-I and Mode-II delamination between aluminium and GFRP laminates, cohesive zone modelling with bilinear traction separation law was implemented. Cohesive zone properties at different temperatures were obtained by applying trends of experimental results from double cantilever beam and end notched flexural tests. Results from experimental tests were compared with simulation results at 30, 70 and 110 °C to verify the validity of the model. Mode-I and Mode-II FE models compared to experimental tests show a good correlation of 5.73% and 7.26% discrepancy, respectively. Crack front stress distribution at 30 °C is characterised by a smooth gradual decrease in Mode-I stress from the centre to the edge of the specimen. At 70 °C, the entire crack front reaches the maximum Mode-I stress with the exception of much lower stress build-up at the specimen’s edge. On the other hand, the Mode-II stress increases progressively from the centre to the edge at 30 °C. At 70 °C, uniform low stress is built up along the crack front with the exception of significantly higher stress concentrated only at the free edge. At 110 °C, the stress distribution for both modes transforms back to the similar profile, as observed in the 30 °C case.

show abstract

“…Moreover, δ f m and δ 0 m specify the effective displacement at complete failure and that relative to the effective displacement at the initiation of damage, respectively; G c is the energy dissipated due to failure; and η is a material parameter [35]. The adhesion strength between the cover and core layers decreased sharply wit increasing temperature, as the higher temperatures increased the overall ductility o adhesive, making crack propagation much smoother [36]. The properties of the coh elements in this study were defined based on the results presented in previous st [37,38], in which the peak traction stresses in the normal and shear modes were red by 83 % each when the temperature increased from RT to 110 °C for an epoxy-base hesive.…”

Section: Finite Element Modellingmentioning

confidence: 99%

Deep Drawing Behaviour of Steel–Glass Fibre-Reinforced and Non-Reinforced Polyamide–Steel Sandwich Materials

et al. 2023

View full text Add to dashboard Cite

Thermoplastic-based fibre metal laminates (FMLs) have gained increasing interest in the automotive industry due to their forming potential—especially at higher temperatures—into complex components compared to thermoset-based ones. However, several challenges arise while processing thermoplastic-based FMLs. One the one hand, forming at room temperature (RT) leads to early failure modes, e.g., fracture and delamination. On the other hand, warm forming can extend their forming limits, although further defects arise, such as severe thickness irregularities and wrinkling problems. Therefore, this study focuses on developing different approaches for deep drawing conditions to deliver a promising, feasible, and cost-effective method for deep-drawn FML parts. We also describe the defects experimentally and numerically via the finite element method (FEM). The FMLs based on steel/glass fibre-reinforced polyamide 6 (GF-PA6/steel) are studied under different deep drawing conditions (temperatures, punch, and die dimensions). In addition, mono-materials and sandwich materials without fibre reinforcement are investigated as benchmarks. The results showed that the best deep drawing condition was at a temperature of 200 °C and a die/punch radius ratio of 0.67, with a gap/thickness ratio of ≤2.0. The FEM simulation via Abaqus 6.14 was able to successfully replicate the anisotropic properties and wrinkling of the GF-PA6 core in an FML, resembling the experimental results.

show abstract

A fracture behaviour evaluation of Glass/Elium150 thermoplastic laminate with the DCB test: Influence of loading rate and temperature

Cited by 6 publications

References 37 publications

Temperature‐dependent interlaminar behavior of unidirectional composite laminates: Property determination and mechanism analysis

Temperature‐dependent interlaminar behavior of unidirectional composite laminates: Property determination and mechanism analysis

Thermal Delamination Modelling and Evaluation of Aluminium–Glass Fibre-Reinforced Polymer Hybrid

Deep Drawing Behaviour of Steel–Glass Fibre-Reinforced and Non-Reinforced Polyamide–Steel Sandwich Materials

Contact Info

Product

Resources

About