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11 Nov 2019
A threepoint bending test is performed on a spinel(MgAl2O4) ceramic specimen having arectangular cross section of height of 3.8 mm and widthof 9 mm; the distance between supportpoints is 25 mm.
(a) Computethe flexural strength if the load at fracture is 350 N (80lb).
(b) If you wereto scratch the ceramic material, how could this affect the testresults? At what location on the sample (relative to where thecenter force is applied) would a scratch have the greatestimpact?
A threepoint bending test is performed on a spinel(MgAl2O4) ceramic specimen having arectangular cross section of height of 3.8 mm and widthof 9 mm; the distance between supportpoints is 25 mm.
(a) Computethe flexural strength if the load at fracture is 350 N (80lb).
(b) If you wereto scratch the ceramic material, how could this affect the testresults? At what location on the sample (relative to where thecenter force is applied) would a scratch have the greatestimpact?
Casey DurganLv2
20 Jun 2019
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