Homogenized couple stress model of optimal auxetic microstructures computed by topology optimization
نویسندگان
چکیده
منابع مشابه
Simultaneous shape, topology and homogenized properties optimization
In this brief note, we present an approach that combines the three classical techniques in structural optimization, i.e. the boundary variation, the topological and the homogenization methods. As a first test of this method, we apply it to the compliance optimization in R .
متن کاملTwo-Scale Topology Optimization with Microstructures: Supplemental Material
1 DISCRETE SAMPLING OF MICROSTRUCTURES Given a set of microstructures, a new population of microstructures is generated using the Stochastically-Ordered Sequential Monte Carlo (SOSMC) method introduced by Ritchie et al. (2015). In our implementation, the samples (or particles) are our microstructures, i.e. binary assignments of the base materials, and the desired distribution is the one that ma...
متن کاملSTRUCTURAL DAMAGE DETECTION BY USING TOPOLOGY OPTIMIZATION FOR PLANE STRESS PROBLEMS
This paper aims to introduce topology optimization as a robust tool for damage detection in plane stress structures. Two objective functions based on natural frequencies and shape modes of the structure are defined to minimize discrepancy between dynamic specifications of the real damaged structure and the updating model. Damage area is assumed as a porous material where amount of porosity sign...
متن کاملTopology Optimization of 3d Auxetic Metamaterials Using Reconciled Level-set Method
Panagiotis Vogiatzis Computational Modeling, Analysis and Design Optimization Research Laboratory Department of Mechanical Engineering State University of New York at Stony Brook Stony Brook, NY, 11794 Email: [email protected] Shikui Chen Computational Modeling, Analysis and Design Optimization Research Laboratory Department of Mechanical Engineering State University of New Yo...
متن کاملISOGEOMETRIC TOPOLOGY OPTIMIZATION OF STRUCTURES BY USING MMA
The Isogeometric Analysis (IA) method is applied for structural topology optimization instead of the finite element method. For this purpose, the material density is considered as a continuous function throughout the design domain and approximated by the Non-Uniform Rational B-Spline (NURBS) basis functions. The coordinates of control points which are also used for constructing the density func...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
سال: 2017
ISSN: 0044-2267
DOI: 10.1002/zamm.201700154