Page 70 - Ship Construction.DJ Eyres 6Ed

Ch07-H8070.fm Page 59 Wednesday, October 18, 2006 6:53 AM
Testing of Materials 59
energy for the specimens tested must be obtained at the specified test
temperature, fracture energy being dependent on temperature as will be
illustrated in Chapter 8.

ALUMINIUM ALLOY TESTS Aluminium alloy plate and section mate-
rial is subject to specified tensile tests. Bar material for aluminium alloy rivets
is subject to a tensile test and also a dump test. The latter test requires com-
--- ใช้เพื่อการศึกษาเท่านั้น---
pression of the bar until its diameter is increased to 1.6 times the original
diameter without cracking occurring. Selected manufactured rivets are also
subjected to the same dump test.
งานห้องสมุด ศูนย์ฝกพาณิชย์นาวี

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