Strain in ceramic glued to a brick
Strain in ceramic glued to a brick
(OP)
Hi Experts,
I posted this elsewhere and got no answer. May be somebody here can help.
I have a piece of ceramic(E=270000 N/mm2) glued with a two component epoxy to another much softer material like brick ( E=14000 N/mm2). The brick is much bigger than ceramic as in the attached diagram.
compressive force is applied on the brick which will deform following to Hook's law.
How much of this strain will be on the ceramic piece? or what is the strain in the ceramic.
What role has the epoxy modulus of elasticity?
thank you for any help
Jabir





RE: Strain in ceramic glued to a brick
As you indicate, the elastic modulus of the epoxy is crucial - and its failure strain if there is such a thing.
Taking the extreme of a very low modulus epoxy, lower than the brick, the mis-match between brick and ceramic will be accommodated by the epoxy; provided the latter can accommodate the large strains experienced near the joint edge.
If the epoxy has a modulus nearer that of the brick then there isn't the means of accommodating the strain mis-match between brick and ceramic.
I've had a little exposure to such problems in the past in the context of lap joints in composite materials. Try doing a relevant search.
RE: Strain in ceramic glued to a brick
blakmax
RE: Strain in ceramic glued to a brick
If it does not deform then the epoxy characteristice are not important since no strain will ever occur at the ceramic.
RE: Strain in ceramic glued to a brick
RE: Strain in ceramic glued to a brick
Rob Stupplebeen
RE: Strain in ceramic glued to a brick
RE: Strain in ceramic glued to a brick
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