Anda belum login :: 27 Nov 2024 03:50 WIB
Home
|
Logon
Hidden
»
Administration
»
Collection Detail
Detail
Kaji Eksperimental Pengaruh Beban Lebih Terhadap Perambatan Retak Material Stainless Steel 304
Bibliografi
Author:
HARTANTO, ANDREAS
;
Sutanto, Hadi
(Advisor);
Himawan, Roziq
(Advisor)
Topik:
Crack Growth
;
Overload
;
Stainless Steel 304
;
OVR
Bahasa:
(ID )
Penerbit:
Program Studi Teknik Mesin Fakultas Teknik Unika Atma Jaya
Tempat Terbit:
Jakarta
Tahun Terbit:
2018
Jenis:
Theses - Undergraduate Thesis
Fulltext:
Andreas Hartanto’s Undergraduate Theses.pdf
(6.04MB;
5 download
)
Abstract
Fatigue mechanism begins with cracks occuring in a material caused by repeated loading factors. Under such conditions as natural disasters such as earthquakes, nuclear reactor components such as pipes that initially receive normal operating loads will be overloaded cause by earthquakes. The purpose of this research is to know the change of crack propagation of a material after receiving overload. Experiment used stainless steel 304 material and the shape of specimens used ASTM E647standard refrence. The crack propagation test with axial dynamic testing on 9 specimens uses a loading ratio of 0.1 with smax = 145 MPa, and there are three overloading ratios of each OVR value using 3 specimens, the test OVR value is 1.5; 1.75; and 2. After overload cycle testing on material, at the crack tip is observed with a microscope and at the tip of the crack becomes branched. To know the crack propagation changes of a material that occurs after receiving the overload load is made a graph of 2a vs N and the graph da / dN vs ?K. In the 2a vs. N specimen with OVR 1.5; 1.75; and 2 after the overload cycle of crack growth that occurs slowing down. Graphics da / dN vs. ?K is made to see the crack growth rates occurring in the specimen and the stress intensity near the crack tip. The OVR 2 value causes a higher crack retardated when compared to OVR 1.5 and OVR 1.75.
Opini Anda
Klik untuk menuliskan opini Anda tentang koleksi ini!
Lihat Sejarah Pengadaan
Konversi Metadata
Kembali
Process time: 0.171875 second(s)
