compared with the fibres, failure occurs by the fracture of
a
fibre which then
leads to fracture of further fibres and the consequential fracture of the
intervening matrix. If the matrix is brittle compared with the fibres, failure
occurs in the matrix and the result is a fractured surface with lengths of fibre
sticking out from it, rather like bristles sticking out from a brush.
Problems
1 Distinguish between the forms of ductile and brittle fractures.
2 Given a fractured specime ...
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