任意切口层合复合材料板特征值分析的自适应等几何方法

IF 3.6 3区材料科学 Q2 ENGINEERING, MECHANICAL

International Journal of Mechanics and Materials in Design Pub Date : 2024-12-31 DOI:10.1007/s10999-024-09740-6

Haoqing Ding, Bingwen Qian, Yutao Hu, Changli Wang, Xin Zhang, Ruqi Sun, Teng Pan, Jincheng Yang

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引用次数: 0

摘要

等几何分析（IGA）在分析复杂几何形状时遇到困难，因为它需要特定的知识来确定控制点的位置和权重。提出了一种自适应积分IGA方法，用于复杂切口层合Reissner-Mindlin板的特征值分析。将自适应积分方法与水平集方法相结合来描述复杂的切割。为缓解严重的剪切锁紧，引入了人为剪切校正因子。为了避免特征模态的局域化，提出了一种分段密度插值方法。通过数值算例验证了该方法的有效性。

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An adaptive isogeometric approach for eigenvalue analysis of laminated composite plates with arbitrary cutouts

The isogeometric analysis (IGA) suffers from difficulties in analyzing complex geometries since it requires specific knowledge to determine the positions and weights of the control points. Here, an adaptive integration IGA approach is proposed for the eigenvalue analysis of the laminate Reissner–Mindlin plates with complex cutouts. An adaptive integration scheme and a level set method are combined to describe the complex cutouts. An artificial shearing correction factor is introduced to alleviate the serious shear locking. A segmented density interpolation scheme is developed to avoid the localized eigenmodes. Numerical examples are conducted to verify the performance of the proposed approach.

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来源期刊

International Journal of Mechanics and Materials in Design ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

6.00

自引率

5.40%

发文量

审稿时长

>12 weeks

期刊介绍： It is the objective of this journal to provide an effective medium for the dissemination of recent advances and original works in mechanics and materials'' engineering and their impact on the design process in an integrated, highly focused and coherent format. The goal is to enable mechanical, aeronautical, civil, automotive, biomedical, chemical and nuclear engineers, researchers and scientists to keep abreast of recent developments and exchange ideas on a number of topics relating to the use of mechanics and materials in design. Analytical synopsis of contents: The following non-exhaustive list is considered to be within the scope of the International Journal of Mechanics and Materials in Design: Intelligent Design: Nano-engineering and Nano-science in Design; Smart Materials and Adaptive Structures in Design; Mechanism(s) Design; Design against Failure; Design for Manufacturing; Design of Ultralight Structures; Design for a Clean Environment; Impact and Crashworthiness; Microelectronic Packaging Systems. Advanced Materials in Design: Newly Engineered Materials; Smart Materials and Adaptive Structures; Micromechanical Modelling of Composites; Damage Characterisation of Advanced/Traditional Materials; Alternative Use of Traditional Materials in Design; Functionally Graded Materials; Failure Analysis: Fatigue and Fracture; Multiscale Modelling Concepts and Methodology; Interfaces, interfacial properties and characterisation. Design Analysis and Optimisation: Shape and Topology Optimisation; Structural Optimisation; Optimisation Algorithms in Design; Nonlinear Mechanics in Design; Novel Numerical Tools in Design; Geometric Modelling and CAD Tools in Design; FEM, BEM and Hybrid Methods; Integrated Computer Aided Design; Computational Failure Analysis; Coupled Thermo-Electro-Mechanical Designs.