Modern references for continuum mechanics I'm wondering what some standard, modern references might be for continuum mechanics.  I imagine most references are probably more used by mechanical engineers than physicists but it's still a classical mechanics question. 
This came up in a conversation with my father (who is a mechanical engineer).  I was curious to see the types of mathematics they use in stress analysis.  Complex analysis gets used to study 2-dimensional isotropic material here:

N.I. Muskhelishvili. Some basic problems of the mathematical theory of elasticity. 
  3rd edition, Moscow-Leningrad. 1949. (Translated by J. R. M. Radok. Noordhoff. 1953.) 

but that's quite an old reference and my library does not have it.  Any favourite more modern and easy-to-find references? 
I'm fine with mathematical sophistication (I'm a mathematician) but I'm not particularly seeking it out.  I'm looking for the kind of references that would be valued by physicists and engineers.  References "for math types" are fine too but that's not really what I'm after. 
 A: Mathematical foundations of elasticity by Marsden and Hughes. Published 1983 and then republished by Dover 1994, so while not exactly recent it's very modern compared to the one by Muskhelishvili. It uses differential forms, lie groups, and bifurcation theory and all that. 
A: I walked into my local Mech. E. department and had a chat with a continuum mechanist.  Two books he showed me that looked like pretty good answers were:
Marcelo Epstein and Marek Elzanowski.  Material inhomogeneities and their evolution: a geometric approach. 
Marcelo Epstein.   The geometrical language of continuum mechanics. 
One thing I like about these references is they're fairly explicit about the kinds of mathematics they're using.  I haven't read them in much detail but a possible downside is there appears to be relatively few detailed families of applications. 
A: This answer contains some additional resources that may be useful. Please note that answers which simply list resources but provide no details are strongly discouraged by the site's policy on resource recommendation questions. This answer is left here to contain additional links that do not yet have commentary.


*

*I don't know about very modern references, but it's hard to get better than Landau & Lifschitz: Theory of Elasticity, as far as I imagine most physicists are concerned.


*Truedell and Noll's Non-linear field theories of mechanics, published in 1965 and republished (in several languages) 4 or 5 times since.


*Mort Gurtin (1981, 2010).


*R. Bowen (available on his Texas A&M website).


*L. Malvern (1969 or so, old but good).


*A good one is J. H. Heinbockel's Introduction to Tensor Calculus and Continuum Mechanics. I guess that's the kind of mathematics an engineer would use, but I don't know for sure. You can download it here.


*J. P. Den Hartog's Mechanical Vibrations. I find it interesting because it gives the tensor notation for small vibrations. It's very practical oriented and it's cheap (Dover published).


*"Physics for Mathematicians" by Michael Spivak,
with Vol 1. being on Mechanics. You can see the first few chapters here  — it looks pretty wonderful and you might particularly like it since it is aimed at teaching Mechanics to Mathematicians.


*Contact Mechanics.


*Contact Mechanics III.
