Ques: I have a question regarding solid mechanics and plate theory,is 2 layer plate means laminated plate or simply refers to as a plate?

  • $\begingroup$ The assumption is a perfect connection between the two plates so they behave as one ie no slip. $\endgroup$
    – Solar Mike
    Jun 10, 2018 at 4:33
  • $\begingroup$ Thankyou for your feedback. you mean it acts as one . But if we have 2 layers plate where the force is applied on the upper layer and deformation on the lower plate, then which category of plate theory this is in? $\endgroup$ Jun 10, 2018 at 20:42
  • $\begingroup$ I am sorry to inform you that the 2 layer plate are having each layer of different material. $\endgroup$ Jun 10, 2018 at 21:03
  • $\begingroup$ The assumption still stands... in theory... unless you are working a bi-metallic strip. $\endgroup$
    – Solar Mike
    Jun 10, 2018 at 21:06

1 Answer 1


A 2-layered plate of different materials would be best handled by means of laminated plate theory. This is due to the strange side affects of bending-stretching coupling - where bending the material can cause it to pull, and vice-versa. This is because the centroid is not in the geometric center, and as a result pulling on the two materials will cause vastly different strains that will result in bending-like behavior (as can be seen with a bimetalic strip).


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