Effective numerical approach with complete damage transfer under multi-step loading

• Published in: Applied mathematics and mechanics Vol. 35; no. 3; pp. 391 - 402
• Main Author: 赵士洋 薛璞 彭雄奇 王琰
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai University 01.03.2014; School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P.R.China%School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P.R.China; State Key Laboratory of Explosion Science and Technology, Beijing 100081, P.R.China%School of Materials Science and Engineering, Shanghai Jiao Tong University,Shanghai 200030, P.R.China
• Subjects: analysis; Applications of Mathematics; Classical Mechanics; Composite structures; composite;degradation;failure;finite; Computer simulation; Damage; element; Finite element method; Fluid- and Aerodynamics; Mathematical analysis; Mathematical Modeling and Industrial Mathematics; Mathematical models; Mathematics; Mathematics and Statistics; Partial Differential Equations; Plates (structural members); Structural damage; 74S05; composite; failure; degradation; TB332; 74R99; finite element analysis
• ISSN: 0253-4827; 1573-2754
• DOI: 10.1007/s10483-014-1799-8

An effective numerical approach is proposed for structural damage analysis, especially for structures which may be damaged at multiple locations to different extents. The structural damage state is represented by defining a set of field-variable functions, and the degradation of material properties is described. Then, through customization of the commercial finite element software ABAQUS/Standard, the damage state is directly assigned to the integration points of elements, thereby avoiding modification of the finite element model. Afterwards, the damaged structures by ABAQUS/Standard is conducted numerically. Finally, this approach is verified by simulating the growth of delamination for a pre-delaminated composite plate and a composite plate under impact loading, respectively.