Title :
A Finite Element Modeling and Analysis of CTS Specimen for Three-Dimensional I-II Mixed Mode Fracture
Author :
Liu, Quanliang ; Qiu, Jianzhong ; Ge, Sen ; Guo, Wanlin
Author_Institution :
Sch. of Aerosp., Xi´´an Jiaotong Univ., Xi´´an, China
Abstract :
A finite element model of compact tear specimen (CTS) is built for the study of three-dimensional I-II mixed mode fracture. Since the three dimensional effects of load combination and the thickness are concerned, the model of the specimen is built in 5 thickness, and the numerical analysis is taken at seven different angles which is span from 00 to 900 with a step of 150. The paper focuses on computer-based techniques used for modeling and optimizing the CTS specimen. The geometry and FEM model of CTS test system are created; the stress analysis of the system is performed by MSC. Patran/Nastran. Some of the stress contour is given to show the typical elastic-plastic analysis results at seven angles; the influence of the thickness and loading angles to the stress is illustrated. The result shows that the model is efficient in numerical analysis with a lot of calculating time save.
Keywords :
elastoplasticity; finite element analysis; fracture; stress analysis; structural engineering computing; 3D I-II mixed mode fracture; FEM model; MSC. Patran/Nastran; compact tear specimen; computer-based techniques; elastic-plastic analysis; engineering structures; finite element modeling; numerical analysis; stress analysis; Aerospace industry; Aircraft; Computer industry; Finite element methods; Numerical analysis; Numerical models; Numerical simulation; Pins; Stress; Testing; CTS specimen; PATRAN/Nastran; element Modeling; mixed mode fracture; thickness effect;
Conference_Titel :
Information and Computing Science, 2009. ICIC '09. Second International Conference on
Conference_Location :
Manchester
Print_ISBN :
978-0-7695-3634-7
DOI :
10.1109/ICIC.2009.402
