Q1. An experiment was conducted in order to find the fracture toughness of a composite material. The resulting force values for different crack lengths are given in the table. a (crack length, mm) F (Force, N) 0.1 400 0.2 455 0.3 483 0.4 510 0.5 535 Find a linear expression for the force versus crack length using the best line as F(a)= c1 a + c2

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Q1. An experiment was conducted in
order to find the fracture toughness of a
composite material. The resulting force
values for different crack lengths are
given in the table.
a (crack length, mm)
F (Force, N)
0.1
400
0.2
455
0.3
483
0.4
510
0.5
535
Find a linear expression for the force versus crack length using the best line as
F(a)— с1 а + с2
Transcribed Image Text:Q1. An experiment was conducted in order to find the fracture toughness of a composite material. The resulting force values for different crack lengths are given in the table. a (crack length, mm) F (Force, N) 0.1 400 0.2 455 0.3 483 0.4 510 0.5 535 Find a linear expression for the force versus crack length using the best line as F(a)— с1 а + с2
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