Ders Bilgileri

#### Ders Tanımı

Ders Kodu Yarıyıl T+U Saat Kredi AKTS
FRACTURE MECHANICS MKM 604 0 3 + 0 3 6
 Dersin Dili Türkçe Dersin Seviyesi Doktora Dersin Türü SECMELI Dersin Koordinatörü Prof.Dr. ALİ OSMAN AYHAN Dersi Verenler Dersin Yardımcıları Dersin Kategorisi Dersin Amacı Many problems seen in engineering applications may contain cracks or fracture phenomenon. The purpose of this course is, by performing fracture mechanics analyses/calculations of structures with cracks, to determine fail/safe conditions and to be able to predict the life the structure or part, if there are fatigue loads acting. For this purpose, some modeling analyses activities are involved within the scope of the course. Dersin İçeriği Introduction, Historical development of Fracrure Mechanics.Linear Elastic Fracture Mechanics (LEFM). Stress concentration and singularity. Stress distributions for elastic cracks and Stress Intensity Factors (K). Crack growth and criteria for unstable fracture. Experimental methods for LEFM. Fatigue crack growth. Numerical Methods: singular elements, J-Integral, Modeling and analysis applications for fracture and crack growth.
 Dersin Öğrenme Çıktıları Öğretim Yöntemleri Ölçme Yöntemleri 1 - Defines Stress Intensity Factor and knows its applications 1 - 2 - 3 - 4 - 15 - A - C - 2 - Knows the stress distributions and plastic zone sizes near the crack tip 1 - 2 - 3 - 4 - A - C - 3 - Knows the necessary conditions for fracture and fatigue crack growth 1 - 2 - 3 - 4 - A - C - 4 - 1 - 2 - 3 - 4 - A - C - 4 - Knows basic tests and material properties used in Linear Elastic Fracture Mechanics 1 - 2 - 3 - A - C - 5 - 1 - 2 - 3 - 4 - 5 - A - C - 5 - Performs fracture analyses using singular finite elements 1 - 2 - 9 - A - C -
 Öğretim Yöntemleri: 1:Lecture 2:Question-Answer 3:Discussion 4:Drilland Practice 15:Problem Solving 5:Demonstration 9:Simulation Ölçme Yöntemleri: A:Testing C:Homework

#### Ders Akışı

Hafta Konular ÖnHazırlık
1 Introduction, Historical development of Fracture Mechanics
2 Linear Elastic Fracture Mechanics (LEFM)
3 Stress distributions for linear elastic cracks
4 Stress Intensity Factor, K Fields
6 Criteria for unstable fracture
7 Experimental methods used in Linear Elastic Fracture Mechanics
8 Fatigue crack growth
9 Numerical methods: singular elements, J-Integral, enriched elements
10 Mid-term exam
11 Modeling and analyses
12 Modeling and analyses
13 Modeling and analyses
14 Modeling and analyses

#### Kaynaklar

Ders Notu
Ders Kaynakları

1. Fracture Mechanics - An Introduction (E.E. Gdoutos), ISBN: 978-1-4020-2863-2 (Print) 978-1-4020-3153-3 (Online), 2005

#### Dersin Program Çıktılarına Katkısı

No Program Öğrenme Çıktıları KatkıDüzeyi
1 2 3 4 5
1 X
2 X
3 X
4 X
5 X
6 X
7 X

#### Değerlendirme Sistemi

YARIYIL İÇİ ÇALIŞMALARI SIRA KATKI YÜZDESİ
AraSinav 1 50
Odev 1 50
Toplam 100
Yıliçinin Başarıya Oranı 60
Finalin Başarıya Oranı 40
Toplam 100

#### AKTS - İş Yükü

Etkinlik Sayısı Süresi(Saat) Toplam İş yükü(Saat)
Course Duration (Including the exam week: 16x Total course hours) 16 3 48
Hours for off-the-classroom study (Pre-study, practice) 16 3 48
Mid-terms 1 15 15
Assignment 1 15 15
Performance Task (Laboratory) 1 15 15
Toplam İş Yükü 141
Toplam İş Yükü /25(s) 5.64
Dersin AKTS Kredisi 5.64
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