Dr Afshin Anssari-Benam
Biography
I am an associate professor in continuum mechanics, and by courtesy biomechanics. I specialise in constitutive modelling of soft materials, including soft biological tissues, via mathematical and computational methods. My current focus is on developing modelling tools that improve the predictive accuracy of constitutive/computational models, and unify the existing constitutive theories into more generalised and comprehensive modelling frameworks.
I obtained my PhD in Biomechanical Engineering from Queen Mary, University of London, in 2012, looking at and formulating the structure-function relationships in the aortic heart valve. I am currently the course leader for MSc Biomedical Engineering, and lead the Cardiovascular Engineering Research Laboratory (CERL). I am involved in delivering various modules on topics of Solid Mechanics, Biomechanics Modelling and Fracture Mechanics, from L4 to L7.
Further afield, when I am not modelling, I enjoy playing (well, mostly watching) snooker and I am fascinated by (modern) classic cars – I have owned a couple!
Research interests
As my research quest, I am in search of finding/developing a universal law to capture all deformations of soft solids across the board. However, failing that, my less ambitious research interests fall within two broad areas:
1- Continuum mechanics and constitutive modelling
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Developing hyperelastic strain energy functions as unified constitutive laws for modelling the nonlinear finite deformation of soft solids.
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Modelling the inelastic mechanical behaviour of soft materials including softening/damage, rate-dependency and viscoelasticity.
2- Soft tissue biomechanics
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Multiscale characterisation and mathematical modelling of the mechanical behaviour of soft tissues.
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Developing new modelling frameworks to capture the hyperelastic/viscoelastic behaviours of soft tissues.
Research outputs
2026
A unified generalised invariants-based constitutive model for incompressible isotropic soft solids
Anssari-Benam, A.
1 Sep 2026, In: European Journal of Mechanics, A/Solids. 119, 21p., 106122
Research output: Article
2025
Modelling the finite deformation of thermoplastic polymers via hyperinelasticity, Part II: An amorphous polymer with varying rubber content-, rate- and temperature-dependency
Anssari-Benam, A., Zaïri, F.
1 Nov 2025, In: International Journal of Non-Linear Mechanics. 178, 14p., 105182
Research output: Article
Further developments in the constitutive theory of the family of models with higher order rational approximant response functions for application to isotropic compressible soft solids
Anssari-Benam, A.
1 Nov 2025, In: International Journal of Engineering Science. 216, 24p., 104336
Research output: Article
Modelling the finite deformation of thermoplastic polymers via hyperinelasticity. Part I: A semi-crystalline polymer under varying crystallinity ratios and deformation rates
Anssari-Benam, A., Zaïri, F.
25 Mar 2025, In: International Journal of Non-Linear Mechanics, 16p., 105091
Research output: Article
Large isotropic elastic deformations: on a comprehensive model to correlate the theory and experiments for compressible rubber-like materials
Anssari-Benam, A., Saccomandi, G.
26 Feb 2025, In: Journal of Elasticity. 157, 25p., 31
Research output: Article
2024
Generalised invariants and pseudo-universal relationships for hyperelastic materials: A new approach to constitutive modelling
Anssari-Benam, A., Goriely, A., Saccomandi, G.
1 Dec 2024, In: Journal of the Mechanics and Physics of Solids. 193, 15p., 105883
Research output: Article
A model for capturing the rate-dependent mechanical behaviour of liquid crystal elastomers
Anssari-Benam, A., Saccomandi, G.
1 Nov 2024, In: Mechanics of Materials. 198, 13p., 105108
Research output: Article
Hyperinelasticity. Part II: A stretch-based formulation
Anssari-Benam, A.
1 Nov 2024, In: Journal of the Mechanics and Physics of Solids. 192, 24p., 105825
Research output: Article
Hyperinelasticity: An energy-based constitutive modelling approach to isothermal large inelastic deformation of polymers. Part I
Anssari-Benam, A.
1 Nov 2024, In: Journal of the Mechanics and Physics of Solids. 192, 28p., 105790
Research output: Article
Modelling the rate-dependent mechanical behaviour of the brain tissue
Anssari-Benam, A., Saccomandi, G.
1 May 2024, In: Journal of the Mechanical Behavior of Biomedical Materials. 153, 12p., 106502
Research output: Article