Burgers material
A Burgers material is a viscoelastic material which consists of a Maxwell material and a Kelvin material in series. It is named after the Dutch physicist Johannes Martinus Burgers.
Given four rheological constants ![a_1](/Images/godic/202501/02/8e6ba967645c302e1f2a60ec9c341e5c3114.png")
, ![a_2](/Images/godic/202501/02/0f768ac5d5dea8d93716a27da05871de3114.png")
, ![a_3](/Images/godic/202501/02/a7913eeb6dcd09b24f125da9086005853114.png")
, and ![a_4](/Images/godic/202501/02/3245e1e5ae22ab11774bb424bcc68e533114.png")
, the Burgers model has the constitutive equation