TAILIEUCHUNG - Wide range brittle fracture curves for U-notched components based on UMTS model

Extensive brittle fracture curves are presented in the present paper for engineering components weakened by a U-shaped notch under different in-plane loading conditions from pure mode I to pure mode II. | Wide range brittle fracture curves for U-notched components based on UMTS model Engineering Solid Mechanics 1 2013 57-68 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Wide range brittle fracture curves for U-notched components based on UMTS model A. R. Torabi Fracture Research Laboratory Faculty of New Science and Technologies University of Tehran . Box 13741-4395 Tehran Iran ARTICLE INFO ABSTRACT Article history Extensive brittle fracture curves are presented in the present paper for engineering components Received January 20 2013 weakened by a U-shaped notch under different in-plane loading conditions from pure mode I to Received in Revised form pure mode II. The curves were obtained in a computational manner on the basis of an July 2 2013 appropriate brittle fracture model namely the U-notched maximum tangential stress UMTS Accepted 6 August 2013 Available online criterion suggested and employed several times in the past by the author and his co-researchers 7 August 2013 to assess mixed mode fracture in numerous U-notched samples. Eight different notch tip radii Keywords were considered in the computations. Extensive brittle materials were also taken into Brittle fracture consideration by using different values of the material critical distance in the calculations. By Fracture curve estimating theoretically the load-carrying capacity and the fracture initiation angle using solely U-notch the two basic material properties namely the ultimate tensile strength and the plane-strain Load-carrying capacity fracture toughness engineers can design conveniently the U-notched brittle components and Mixed mode loading structures aiming to avoid abrupt fracture. 2013 Growing Science Ltd. All rights reserved. 1. Introduction Despite general targets exist in all kinds of mechanical design a main goal is certainly to prevent failure in components with a desirable safety factor. For this purpose several failure .

• Cơ khí - Chế tạo máy
• Load carrying capacity
• Mixed mode loading
• Wide range brittle fracture curve
• U notched component
• U shaped notch