Imperial College London


Faculty of EngineeringDepartment of Mechanical Engineering

Head/Professor in Mechanics of Materials Division



+44 (0)20 7594 7082jianguo.lin




Miss Valerie Crawford +44 (0)20 7594 7083




522City and Guilds BuildingSouth Kensington Campus





Professor Lin''s research experience is in Materials and process modelling, Solid/Computational mechanics, which includes micro-mechanics modelling, and its application in creep-damage, cyclic-plasticity-damage, viscoplasticity and advanced metal forming technologies.

At the University of Sheffield and UMIST, He worked on the development of unified creep-damage, viscoplasticity-damage, coupled creep and cyclic-plasticity damage constitutive equations. These equations were implemented in FE solvers to predict the damage and failure of engineering materials, such as copper, Al-alloys and nickel-based super-alloys, under different working conditions.

At the University of Birmingham, He worked on the development of unified viscoplastic constitutive equations to model micro-structure and damage evolution in hot/warm metal forming processes. Some examples include: (i) phase transformation in hot-stamping with cold-die quenching, (ii) grain growth in superplastic forming, (iii) age precipitation hardening in creep-age-forming, (iv) recrystallisation, grain size and damage evolution in hot rolling, etc.. He is one of the originators for the development of Evolutionary Algorithms (EA)-based optimization techniques for the determination of physically-based unified constitutive equations from experimental data.

He has also developed an integrated facility for micro-mechanics modelling. Particular applications include the forming of micro components, such as extrusion of micro pins, hydroforming of micro-tubes, etc.



Tong C, Rong Q, Yardley VA, et al., 2022, Investigation of deformation behaviour with yield point phenomenon in cold-rolled medium-Mn steel under hot stamping conditions, Journal of Materials Processing Technology, Vol:306, ISSN:0924-0136, Pages:1-15

Zhang R, Shi Z, Yardley VA, et al., 2022, A CDM-based unified viscoplastic constitutive model of FLCs and FFLCs for boron steel under hot stamping conditions, International Journal of Damage Mechanics, ISSN:1056-7895

Liu S, Xia Y, Liu Y, et al., 2022, Tool path planning of consecutive free-form sheet metal stamping with deep learning, Journal of Materials Processing Technology, Vol:303, ISSN:0924-0136, Pages:117530-117530

Zhou W, Shi Z, Lin J, et al., 2022, An upper bound solution for deformation field analysis in differential velocity sideways extrusion using a unified stream function, International Journal of Mechanical Sciences, Vol:224, ISSN:0020-7403, Pages:107323-107323

Zhang R, Shi Z, Yardley VA, et al., 2022, Experimental studies of necking and fracture limits of boron steel sheet under hot stamping conditions, Journal of Materials Processing Technology, Vol:302, ISSN:0924-0136

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