Two-Scale Elastic Shape Optimization for Additive Manufacturing

نویسندگان

چکیده

In this paper, a two-scale approach for elastic shape optimization of fine-scale structures in additive manufacturing is investigated. To end, free material performed on the macro-scale using elasticity tensors set microscopically realizable tensors. A database these and their cost values obtained with topology microscopic cells, working within fixed samples. This takes into account manufacturability constraints via predefined bridges to neighboring cells at faces fundamental cell. For actual chosen fine-scale, piecewise constant tensor ansatz grid macroscopic mesh applied. The an efficient online phase, whereas associated cellwise optimal patterns are retrieved from that was computed offline. that, admissible parametrized product cubic B-splines over unit square matching precomputed representation then efficiently used interior point method macro-scale.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Topology Optimization for Additive Manufacturing

This paper gives an overview of the issues and opportunities for the application of topology optimization methods for additive manufacturing (AM). The main analysis issues discussed are: how to achieve the maximum geometric resolution to allow the fine features easily manufacturable by AM to be represented in the optimization model; the manufacturing constraints to be considered, and the workfl...

متن کامل

Self-supporting Topology Optimization for Additive Manufacturing

The paper presents a topology optimization approach that designs an optimal structure, called a self-supporting structure, which is ready to be fabricated via additive manufacturing without the usage of additional support structures. Such supports in general have to be created during the fabricating process so that the primary object can be manufactured layer by layer without collapse, which is...

متن کامل

New-emerging approach for fabrication of near net shape aluminum matrix composites/nanocomposites: Ultrasonic additive manufacturing

Recently, high-performance lightweight materials with outstanding mechanical properties have opened up their way to some sophisticated industrial applications. As one of these systems, aluminum matrix composites/nanocomposites (AMCs) offer an outstanding combination of relative density, hardness, wear resistance, and mechanical strength. Until now, several additive manufacturing methods have be...

متن کامل

Risk averse elastic shape optimization with parametrized fine scale geometry

Shape optimization of the fine scale geometry of elastic objects is investigated under stochastic loading. Thus, the object geometry is described via parametrized geometric details placed on a regular lattice. Here, in a two dimensional set up we focus on ellipsoidal holes as the fine scale geometric details described by the semiaxes and their orientation. Optimization of a deterministic cost f...

متن کامل

Shape Optimization for Additive Manufacturing of Removable Partial Dentures - A New Paradigm for Prosthetic CAD/CAM

With ever-growing aging population and demand for denture treatments, pressure-induced mucosa lesion and residual ridge resorption remain main sources of clinical complications. Conventional denture design and fabrication are challenged for its labor and experience intensity, urgently necessitating an automatic procedure. This study aims to develop a fully automatic procedure enabling shape opt...

متن کامل

ذخیره 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: Multiscale Modeling & Simulation

سال: 2023

ISSN: ['1540-3459', '1540-3467']

DOI: https://doi.org/10.1137/21m1450859