The frettingfatiguebehaviorof TC4 alloy was investigated using cylinder-plane configuration. Basedon the experimental results, the damagemechanism of fretting fatigue failure was discussed.
For the first time in the airline's history, business class saw higher percentages of seats filled than coach, said Singapore spokesman James Boyd, so the airline switched to a luxurious all-business-class configuration, with 100 lie-flat beds on a plane big enough to carry more than 300 passengers.