Imperial College London


Faculty of EngineeringDepartment of Mechanical Engineering

Professor of the Mechanics of Materials



+44 (0)20 7594 7246m.charalambides Website




516City and Guilds BuildingSouth Kensington Campus






BibTex format

author = {Hagan, EWS and Charalambides, MN and Young, CRT and Learner, TJS},
doi = {10.1007/s00339-015-9423-6},
journal = {Applied Physics A - Materials Science & Processing},
pages = {823--835},
title = {The effects of strain rate and temperature on commercial acrylic artist paints aged one year to decades},
url = {},
volume = {121},
year = {2015}

RIS format (EndNote, RefMan)

AB - Acrylic artist paints are viscoelastic composites containing a high molecular weight copolymer, pigment and a variety of additives. The glass transition temperature of the latex binder is typically slightly below ambient conditions, giving mechanical properties that are strongly dependent on strain rate and temperature. In previous work, the viscoelastic behaviour of custom-formulated latex artist paints was reported for films with known volume fractions of pigment using data from uniaxial tensile tests at different strain rates and temperatures. Secant Young’s modulus and failure strain master curves were constructed for each film through time-temperature superposition, allowing predictions beyond the experimental timescale at a selected reference temperature. A similar analysis is now presented for a small set of commercial artist paints tested at ages of 1 and 27 years. Experimental shift factor values are reported with fits to the Arrhenius, WLF and Vogel Fulcher equations, along with a comparison with published data for acrylic polymers. The tensile results highlight a spectrum of properties that acrylic paints may exhibit—brittle glass to hyperelastic—depending on the conditions during deformation. Strong similarities are shown between products from different manufacturers, and the findings suggest a high degree of stability with age. A method for predicting failure as a function of strain rate and temperature is also presented, and the methodology gives a framework for investigating other artist materials and the factors influencing their mechanical properties.
AU - Hagan,EWS
AU - Charalambides,MN
AU - Young,CRT
AU - Learner,TJS
DO - 10.1007/s00339-015-9423-6
EP - 835
PY - 2015///
SN - 1432-0630
SP - 823
TI - The effects of strain rate and temperature on commercial acrylic artist paints aged one year to decades
T2 - Applied Physics A - Materials Science & Processing
UR -
UR -
VL - 121
ER -