What does the d'_{ijk}E_{k} term in the strain tensor represent?

[sol66]

There's this equation e$$_{ij}$$ = $$\alpha$$$$_{ij}$$$$\Delta$$T + d'$$_{ijk}$$E$$_{k}$$ + Q'$$_{ijk}$$H$$_{k}$$ + s$$_{ijkl}$$ Sigma$$_{kl}$$, which is the strain tensor I'm asking about. All I want to know is what the component d'$$_{ijk}$$E$$_{k}$$ is called and what its physical meaning is. Thanks in advance

 

[Mapes]

It would be nice if you could define your variable, if possible, but since $\bold{E}$ typically refers to an electric field, I'm guessing it's http://en.wikipedia.org/wiki/Electrostriction" ).

 

[sol66]

Thanks, I'm sorry but I would define the variables if I could. The variables weren't defined for me either.