Development of benchmark for simulation of Mode I time based fracture

International Conference on Recent Advancements and Effectual Researches in Engineering Science and Technology

Gopal, A.V.^1 ; Jamil, A.^1

Department of Mechanical Engineering, ZHCET, Aligarh Muslim University, Aligarh, (U.P.)

202002, India^1

关键词: Bench-mark problems;    Commercial codes;    Fracture parameter;    Industrial components;    Material failures;    P92 steels;    Test specimens;    Viscoelastic analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/396/1/012063/pdf
DOI  :  10.1088/1757-899X/396/1/012063

来源: IOP

【 摘 要 】

Time based fracture is a material failure phenomenon in industrial components which are under stress over a long period of time. In this work an attempt is made to numerically model this time based fracture corresponding to industrial components made of P92 steel thereby providing solutions to structural integrity using the commercial code of ABAQUS®. As such benchmark problems in pure Mode I, viz. a compact test Specimen C(T) was modelled using static and viscoelastic analysis and fracture parameter J & C∗ were evaluated respectively. The results were compared with experimental results from literature revealing a good agreement between them, thereby validating the FE model. The knowledge gained from this quest is proposed to be further extended to industrial components prone to time based fracture like pressure vessels and pipes.