A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anisotropic mechanical response of AA7475-T7351 alloy at different loading rates and temperatures
https://orcid.org/0000-0002-8856-5449
Abstract The mechanical behaviour of aluminium alloy 7475-T7351 along the three principal directions (i.e rolling, transverse and normal) are compared here at different rates and temperatures under tensile and compressive loading. The aluminium alloy is examined in quasi-static circumstances using the Zwick/Roell Z-50 UTM, while the SHPB (for compression and tension) technique is utilised to investigate the high strain rate behaviour of the material under tensile (up to 2950 s−1) and compressive (up to -4438 s−1) loading. Both the quasi-static and dynamic experiments are performed at five different temperatures (25 °C, 100 °C, 150 °C, 200 °C, 250 °C). JC, KHL and m-KL constitutive models are calibrated along different directions. Quadratic and non-quadratic anisotropy model was further modified to incorporate tension–compression asymmetry and constants were also evaluated to predict the yield surface of AA7475-T7351 for temperatures and strain rates. The loading direction (tension/compression), strain rate and temperature are observed to affect the ductility and strength of AA7475-T7351 immensely. The KL phenomenological model is modified to incorporate the tension–compression asymmetry, strain hardening, strain rate hardening and thermal softening of AA7475-T7351. The efficiency of the modified KL model is compared with Johnson–Cook and KHL constitutive models along the principal material directions.
Graphical abstract Display Omitted
Highlights AA7475-T7351 is characterised at different temperatures and strain rates along RD, TD and ND under tension and compression loading. Constitutive parameters of the JC and KHL model are evaluated for 3 different directions under tension and compression loading. A coupled more efficient modified KL model is developed for better prediction of flow behaviour. Hill’s 48, Hill’s 93 and Barlat 1989 anisotropy model is further calibrated to evaluate the yield surface.
Anisotropic mechanical response of AA7475-T7351 alloy at different loading rates and temperatures
https://orcid.org/0000-0002-8856-5449
Abstract The mechanical behaviour of aluminium alloy 7475-T7351 along the three principal directions (i.e rolling, transverse and normal) are compared here at different rates and temperatures under tensile and compressive loading. The aluminium alloy is examined in quasi-static circumstances using the Zwick/Roell Z-50 UTM, while the SHPB (for compression and tension) technique is utilised to investigate the high strain rate behaviour of the material under tensile (up to 2950 s−1) and compressive (up to -4438 s−1) loading. Both the quasi-static and dynamic experiments are performed at five different temperatures (25 °C, 100 °C, 150 °C, 200 °C, 250 °C). JC, KHL and m-KL constitutive models are calibrated along different directions. Quadratic and non-quadratic anisotropy model was further modified to incorporate tension–compression asymmetry and constants were also evaluated to predict the yield surface of AA7475-T7351 for temperatures and strain rates. The loading direction (tension/compression), strain rate and temperature are observed to affect the ductility and strength of AA7475-T7351 immensely. The KL phenomenological model is modified to incorporate the tension–compression asymmetry, strain hardening, strain rate hardening and thermal softening of AA7475-T7351. The efficiency of the modified KL model is compared with Johnson–Cook and KHL constitutive models along the principal material directions.
Graphical abstract Display Omitted
Highlights AA7475-T7351 is characterised at different temperatures and strain rates along RD, TD and ND under tension and compression loading. Constitutive parameters of the JC and KHL model are evaluated for 3 different directions under tension and compression loading. A coupled more efficient modified KL model is developed for better prediction of flow behaviour. Hill’s 48, Hill’s 93 and Barlat 1989 anisotropy model is further calibrated to evaluate the yield surface.
Anisotropic mechanical response of AA7475-T7351 alloy at different loading rates and temperatures
https://orcid.org/0000-0002-8856-5449
Abstract The mechanical behaviour of aluminium alloy 7475-T7351 along the three principal directions (i.e rolling, transverse and normal) are compared here at different rates and temperatures under tensile and compressive loading. The aluminium alloy is examined in quasi-static circumstances using the Zwick/Roell Z-50 UTM, while the SHPB (for compression and tension) technique is utilised to investigate the high strain rate behaviour of the material under tensile (up to 2950 s−1) and compressive (up to -4438 s−1) loading. Both the quasi-static and dynamic experiments are performed at five different temperatures (25 °C, 100 °C, 150 °C, 200 °C, 250 °C). JC, KHL and m-KL constitutive models are calibrated along different directions. Quadratic and non-quadratic anisotropy model was further modified to incorporate tension–compression asymmetry and constants were also evaluated to predict the yield surface of AA7475-T7351 for temperatures and strain rates. The loading direction (tension/compression), strain rate and temperature are observed to affect the ductility and strength of AA7475-T7351 immensely. The KL phenomenological model is modified to incorporate the tension–compression asymmetry, strain hardening, strain rate hardening and thermal softening of AA7475-T7351. The efficiency of the modified KL model is compared with Johnson–Cook and KHL constitutive models along the principal material directions.
Graphical abstract Display Omitted
Highlights AA7475-T7351 is characterised at different temperatures and strain rates along RD, TD and ND under tension and compression loading. Constitutive parameters of the JC and KHL model are evaluated for 3 different directions under tension and compression loading. A coupled more efficient modified KL model is developed for better prediction of flow behaviour. Hill’s 48, Hill’s 93 and Barlat 1989 anisotropy model is further calibrated to evaluate the yield surface.
Anisotropic mechanical response of AA7475-T7351 alloy at different loading rates and temperatures
Chakraborty, Purnashis (author) / Singha, M.K. (author) / Tiwari, Vikrant (author)
Thin-Walled Structures ; 188
2023-05-09
Article (Journal)
Electronic Resource
English
JC , Johnson-Cook , KHL , Khan-Huang-Liang , SHPB , Split Hopkinson Pressure Bar , SHTB , Split Hopkinson Tensile Bar , DIC , Digital Image Correlation , RD , Rolling Direction , TD , Transverse Directions , ND , Normal Directions , UTS , Ultimate Tensile Strength , TRF , Temperature Reduction Factor , DIF , Dynamic Increase Factor , SRS , Strain Rate Sensitivity , AA7475-T7351 , Anisotropy , m-KL , Barlat 1989 , Hill’s 93
Superplastic Behavior of AA7475 Al Alloy
| British Library Online Contents | 1997
Topographic study of superplastically formed AA7475 hemispherical domes
| British Library Online Contents | 1996
Re-examination of "missing strain" during superplastic deformation of AA7475
| British Library Online Contents | 2004
| British Library Online Contents | 2006
Fatigue crack growth analysis of pre-strained 7475-T7351 aluminum alloy
| British Library Online Contents | 2006