Theoretical and experimental investigation of effects of failures on the tensile endurance of elevator ropes [Theoretische und experimentelle Untersuchung der Effekte von Fehlern auf die Dauerzugfestigkeit von Aufzugseilen]

Onur Y.A. | Aycan O.

Elevators have an important place in human life just after uprising demands in high rise buildings, skyscraper and luxury residence concepts have surged. Steel wire ropes provide permanent working safety and reliability in the elevator installations. Due to this reason steel wire ropes are one of the vital components of elevators. In this study, effects of discard criteria such as wire breaks, abrasive wear and corrosion where extents of those failures are defined by ISO 4344 standard on the tensile endurance of 6×19 Seale and 8×19 Warrington elevator ropes have been investigated theoretically ...Daha fazlası

Makale 2019 Materialwissenschaft und Werkstofftechnik50 ( 6 ) , pp. 7 - 717 191 Görüntülenme

Vibro-acoustic analysis of post-impacted sandwich panels

Yetmez M. | Kocer L. | Erdogan H. | Demirci I.

In this study, the vibro-acoustic behaviour of centrally damaged honeycomb cored sandwich panels is investigated experimentally. For this purpose, experimental evaluations are completed by the followings: (I) honeycomb sandwich panels with two different core materials and the same skin materials are considered, (II) low-velocity impact measurements with three different projectiles are obtained, (III) vibration and vibro-acoustic tests are performed to present the vibration characteristics of the post-impacted sandwich panels with two different boundary conditions. Effect of core material and p ...Daha fazlası

Konferans Nesnesi 2015 Materialwissenschaft und Werkstofftechnik46 ( 04.May ) , pp. 4 - 445 334 Görüntülenme

Experimental dynamic analysis on naturally curved honeycomb sandwich beams with different damage patterns

Erdogan H. | Yetmez M.

In this study, dynamic analysis of naturally curved honeycomb sandwich beam including two surface cracks and an impact region at the facing skin is presented. Laminates of facing skin and backing skin are known as carbon fiber-plain weave composite laminates with 1.6 mm in thickness. In the first part, in order to determine mechanical properties of both the skin with no-crack/crack(s) and the honeycomb core of the composite beam, static tensile tests are conducted with respect to straingage measurement technique. In the second part, drop weight impact tests and vibration tests are performed to ...Daha fazlası