Fatigue Cracking
In 2009 the D class tram fleet had to undergo structural strengthening to prevent the spread of metal fatigue in the trams aluminium frame, including removal of seats to make room for the required strengthening work, leaving D1 class trams with 32 seats and D2 class trams with 56.
Read more about this topic: D-class Melbourne Tram
Famous quotes containing the words fatigue and/or cracking:
“Croft had an instinctive knowledge of land, sensed the stresses and torsions that had first erupted it, the abrasions of wind and water. The platoon had long ceased to question any direction he took; they knew he would be right as infallibly as sun after darkness or fatigue after a long march.”
—Norman Mailer (b. 1923)
“All true histories contain instruction; though, in some, the treasure may be hard to find, and when found, so trivial in quantity that the dry, shrivelled kernel scarcely compensates for the trouble of cracking the nut.”
—Anne Brontë (1820–1849)