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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pellegrino, Antonio
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Strain rate and temperature dependence of short/unidirectional carbon fibre PEEK hybrid compositescitations
- 2024Strain rate and temperature dependence of short/unidirectional carbon fibre PEEK hybrid compositescitations
- 2024A data-driven rate and temperature dependent constitutive model of the compression response of a syntactic foamcitations
- 2024A comprehensive investigation on the temperature and strain rate dependent mechanical response of three polymeric syntactic foams for thermoforming and energy absorption applicationscitations
- 2024A Novel Specimen Design for Multiaxial Loading Experiments at High Strain Ratescitations
- 2023Dynamic response of Advanced Placed Ply compositescitations
- 2023Influence of Strain History on Dynamic Strain Localization and Stress State During High-Rate Tensile Loading of Titanium Alloys:Experiments, Modeling, and Analytical Methodscitations
- 2023A data-driven model of the yield and strain hardening response of commercially pure titanium in uniaxial stresscitations
- 2023Influence of Strain History on Dynamic Strain Localization and Stress State During High-Rate Tensile Loading of Titanium Alloyscitations
- 2022The dependency of compressive response of epoxy syntactic foam on the strain rate and temperature under rigid confinementcitations
- 2022Loading mode and lateral confinement dependent dynamic fracture of a glass ceramic Macorcitations
- 2022Pure shear plastic flow and failure of titanium alloys under quasi-static and dynamic torsional loadingcitations
- 2022Temperature dependent dynamic compressive response of PA66-GF30 composite under constant strain rate multiaxial loadingcitations
- 2022Experimental analysis of the multiaxial failure stress locus of commercially pure titanium at low and high rates of straincitations
- 2021Temperature dependent dynamic strain localization and failure of ductile polymeric rods under large deformationcitations
- 2021Thermomechanical constitutive behaviour of a near α titanium alloy over a wide range of strain ratescitations
- 2021Dynamic necking of a near α titanium alloy at high strain ratescitations
- 2021Measurement of pure shear constitutive relationship from torsion tests under quasi-static, medium, and high strain rate conditionscitations
- 2020Strain rate and temperature dependent strain localization of a near α titanium alloycitations
- 2020Dynamic tensile testing of needle-punched nonwoven fabricscitations
- 2020Rate dependent behaviour and dynamic strain localisation of three novel impact resilient titanium alloyscitations
- 2019A new technique for tensile testing of engineering materials and composites at high strain ratescitations
- 2018Measurements of the effects of pure and salt water absorption on the rate-dependent response of an epoxy matrixcitations
- 2018Effect of particle morphology, compaction, and confinement on the high strain rate behavior of sandcitations
- 2017Bayesian calibration of microCT-based DEM simulations for predicting the effective elastic response of granular materials
- 2017Strain rate dependence of mode II delamination resistance in through thickness reinforced laminated compositescitations
- 2016Effect of strain rate and fibre rotation on the in-plane shear response of ±45° laminates in tension and compression testscitations
- 2016The Dynamic Response of Etnean Sand and the Effect of Its Impingement on Ti-6Al-4 V Alloycitations
- 2015The mechanical response of a syntactic polyurethane foam at low and high rates of straincitations
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article
Temperature dependent dynamic compressive response of PA66-GF30 composite under constant strain rate multiaxial loading
Abstract
<p>This paper studies the uniaxial and multiaxial dynamic compressive behaviour and failure of PA66-GF30 (30 wt % glass fibre reinforced polyamide 66), a typical light weight and high strength composite increasingly used in automobiles including the electric cars in applications from ambient temperature to elevated temperatures up to 90 °C. Likewise, the constitutive relation of PA66-GF30 is characterized from quasi-static to high strain rates. Constant high strain rate loading is achieved by pulse shaping technique on a bespoke split Hopkinson bar. The stress-strain relations are pressure, strain rate and temperature dependent. Effects of strain rate and temperature are found to be decoupled on the pressure sensitivity of PA66-GF30. Beyond maximum stress, micro crack has already formed in dynamically deformed PA66-GF30, which corresponds to macro strain localization monitored by high speed photography and digital image correlation techniques. The PA66-GF30 with confinement shows adiabatic shear failure, with fibres coated by severe shear matrix facets and evenly distributed filaments. This is different from the unconfined PA66-GF30 which shows fibres pull out in the fractured matrix. A modified Drucker-Prager model is proposed to describe the pressure dependent compressive strength of PA66-GF30 over various strain rates and temperatures.</p>