Engineering, 24.08.2021 17:20, joslynndiggs
How does each of the following influence the tensile modulus of a semicrystalline polymer?
(a) Molecular weight decrease
(b) Degree of crystallinity increase
(c) Deformation by drawing
(d) Annealing of an undeformed material
(e) Annealing of a drawn material
(a) - non-direct influence, (b) increase, (c) increase, (d) increase, (e) - decrease
(a) non-direct influence, (b) increase, (c) - decrease, (d) decrease, (e) - decrease
(a) - increase, (b) decrease, (c) - decrease, (d) increase, (e) - decrease
(a) non-direct influence, (b) increase, (c) - decrease, (d) increase, (e) - decrease
Answers: 3
Engineering, 04.07.2019 18:10, oliviasoreo92
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
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Engineering, 04.07.2019 18:10, 0436500
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
How does each of the following influence the tensile modulus of a semicrystalline polymer?
(a) Mol...
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