Proceedings of the Fourteenth International Conference on Computational Structures Technology最新文献_第7页

Relative probabilistic entropies in engineering reliability analysis 工程可靠性分析中的相对概率熵

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.6.1

M. Kaminski

引用次数: 0

Maximum length scale control in density-based multi-material topology optimization 基于密度的多材料拓扑优化中的最大长度尺度控制

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.5.4

L. Song, J. Zhao, T. Gao, J. Li, L. Tang, Y. Li, W. Zhang

{"title":"Maximum length scale control in density-based multi-material topology optimization","authors":"L. Song, J. Zhao, T. Gao, J. Li, L. Tang, Y. Li, W. Zhang","doi":"10.4203/ccc.3.5.4","DOIUrl":"https://doi.org/10.4203/ccc.3.5.4","url":null,"abstract":"In this work, the method of the maximum length scale control is proposed for density-based multi-material topology optimization. The three-field approach of multi-material topology optimization is presented, which includes the density filter, the projection with Heaviside function, and the uniform multiphase materials interpolation (UMMI) scheme. Then, the local constraints are built by introducing porosity and aggregated by p-mean function to achieve maximum length scale control for the solid phase. Besides, three control schemes are studied and compared. The maximum length scale constraint for single solid phase (MaxLSC-S) and for entire solid phases (MaxLSC-U) are proposed. Based on them, the maximum length scale constraint with hybrid control scheme (MaxLSC-H) are presented. The proposed schemes realize the independent maximum length scale control of a certain material, the simultaneous control of multiple materials, and the maximum length scale control of the joints between two candidate materials. The optimization formulations and the sensitivity analysis of the related optimization responses are subsequently given. Numerical tests demonstrate that the proposed method can contribute to improving the manufacturability of length scale constrained designs and provides possibilities to achieve the desired properties on the design.","PeriodicalId":143311,"journal":{"name":"Proceedings of the Fourteenth International Conference on Computational Structures Technology","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132672267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probabilistic analysis of structures equipped with FVDs accounting for their brittle failure 考虑脆性破坏的fvd结构的概率分析

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.11.2

F. Scozzese, L. Gioiella, E. Tubaldi, L. Ragni, A. Dall'asta

引用次数: 0

Particle Placement Strategies for Lattice Discrete Particle Models 点阵离散粒子模型的粒子放置策略

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.20.3

J. Vorel, J. Vozáb, M. Marcon, J. Podroužek, R. Wan‐Wendner

引用次数: 0

Rational Robustness Assessment and Design of Multi-storey Buildings 多层建筑的合理稳健性评估与设计

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.2.3

B. Izzuddin

引用次数: 0

Learning virtual sensors of structural stress from on-board instrumentation of a commercial aircraft 从商用飞机机载仪器中学习结构应力虚拟传感器

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.22.4

M. Ghienne, A. Limare, L. Platon, T. Barbagelata, P. Escamilla, S. Mzali, M. Liao, S. Lassonde, A. Braun

引用次数: 0

Discontinuous vs continuous approaches for the nonlinear dynamics of an historic masonry tower 历史砖石塔非线性动力学的不连续与连续方法

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.8.1

M. Schiavoni, N. Mendes, D. V. Oliveira, G. Milani, F. Clementi

引用次数: 0

Strengthening Effects of Steel Truss Bridge Members with Carbon Fibre Reinforced Plastics Sheets 碳纤维增强塑料薄板对钢桁架桥梁构件的加固效果

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.12.6

Y. Yamaguchi, H. Kawamura, S. Fujisawa, S. Yotsui, K. Nozaka, K. Izuno

引用次数: 0

Data-driven macro-micro-macro modelling of rubber-like materials 类橡胶材料的数据驱动宏观-微观-宏观建模

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.2.2

F. Montáns, V. Amores, I. Ben-Yelun, L. Moreno, J. M. Benítez

{"title":"Data-driven macro-micro-macro modelling of rubber-like materials","authors":"F. Montáns, V. Amores, I. Ben-Yelun, L. Moreno, J. M. Benítez","doi":"10.4203/ccc.3.2.2","DOIUrl":"https://doi.org/10.4203/ccc.3.2.2","url":null,"abstract":"The characterization of the multiaxial mechanical behaviour of polymers has been challenging, as the vast number of proposed models demonstrates. These models are based on analytical expressions of sate variables (invariants or principal stretches). Machine learning brings new tools to characterize polymers from macroscopic experiments. However, classical machine learning modelling as classical Neural Networks have several drawbacks, as the need for extensive data, the lack of robustness, and the lack of compliance with physical principles. In polymers, physics-based machine learning brings the best of both worlds by performing data-driven characterization considering physical principles and reducing the number of needed tests. In this work, using a simple procedure for crossing scales, we present a new data-driven procedure to characterize the entropic behaviour of a representative macromolecule directly from any single macroscopic test on the polymer by solving a linear system of equations. This single test may be homogeneous like a tensile test or a biaxial test, or it can also be a nonhomogeneous test where the deformation map is measured through digital image correlation and the cell load is recorded. The resulting macromolecule behaviour fully characterizes the reversible behaviour of the polymer and can be used in an efficient manner in finite elements to perform accurate simulations of polymers.","PeriodicalId":143311,"journal":{"name":"Proceedings of the Fourteenth International Conference on Computational Structures Technology","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115130732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An application of multiscale topology optimization with loading uncertainty 考虑载荷不确定性的多尺度拓扑优化应用

Proceedings of the Fourteenth International Conference on Computational Structures Technology Pub Date : 1900-01-01 DOI: 10.4203/ccc.3.5.6

M. Bruggi, H. Ismail, J. Lógó

引用次数: 0