Global sensitivity analysis of 3D printed material with binder jet technology by using surrogate modeling and polynomial chaos expansion

IF 4.4 Q2 ENGINEERING, MANUFACTURING

Progress in Additive Manufacturing Pub Date : 2023-05-30 DOI:10.1007/s40964-023-00459-y

Lorenzo Del Giudice, Stefano Marelli, Bruno Sudret, Michalis F. Vassiliou

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Abstract

Abstract The mechanical properties of 3D printed materials produced with additive manufacturing depend on the printing process, which is controlled by several tuning parameters. This paper focuses on Binder Jet technology and studies the influence of printing resolution, activator percentage, droplet mass, and printing speed on the compressive and flexural strength, as well as on the Young’s modulus of the bulk printed material. As the number of tests required using a one factor at a time approach is not time efficient, a Design of Experiments approach was applied and optimal points in the 4-dimensional parameter space were selected. Then Sobol’ sensitivity indices were calculated for each mechanical property through polynomial chaos expansion. We found that the mechanical properties are primarily controlled by the binder content of the bulk material, namely printing resolution and droplet mass. A smaller dependence on the activator percentage was also found. The printing speed does not affect the mechanical properties studied. In parallel, curing of the specimens at 80–115 °C for 30–120 min increases their strength.

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基于代理建模和多项式混沌展开的3D打印材料全局敏感性分析

摘要增材制造3D打印材料的力学性能取决于打印工艺，而打印工艺是由几个可调参数控制的。本文以粘结剂喷射技术为研究对象，研究了打印分辨率、活化剂含量、液滴质量、打印速度等因素对大块打印材料抗压强度、抗弯强度以及杨氏模量的影响。由于每次使用一个因素的方法所需的测试数量不具有时间效率，因此采用实验设计方法并在四维参数空间中选择最优点。然后通过多项式混沌展开计算各力学性能的Sobol敏感性指数。我们发现，机械性能主要由散装材料的粘结剂含量控制，即打印分辨率和液滴质量。还发现对活化剂百分比的依赖性较小。印刷速度不影响所研究的机械性能。同时，在80-115°C下固化30-120分钟可提高试件的强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress in Additive Manufacturing Engineering-Industrial and Manufacturing Engineering

CiteScore

7.20

自引率

0.00%

发文量

113

期刊介绍： Progress in Additive Manufacturing promotes highly scored scientific investigations from academia, government and industry R&D activities. The journal publishes the advances in the processing of different kinds of materials by well-established and new Additive Manufacturing (AM) technologies. Manuscripts showing the progress in the processing and development of multi-materials by hybrid additive manufacturing or by the combination of additive and subtractive manufacturing technologies are also welcome. Progress in Additive Manufacturing serves as a platform for scientists to contribute full papers as well as review articles and short communications analyzing aspects ranging from data processing (new design tools, data formats), simulation, materials (ceramic, metals, polymers, composites, biomaterials and multi-materials), microstructure development, new AM processes or combination of processes (e.g. additive and subtractive, hybrid, multi-steps), parameter and process optimization, new testing methods for AM parts and process monitoring. The journal welcomes manuscripts in several AM topics, including: • Design tools and data format • Material aspects and new developments • Multi-material and composites • Microstructure evolution of AM parts • Optimization of existing processes • Development of new techniques and processing strategies (combination subtractive and additive methods, hybrid processes) • Integration with conventional manufacturing techniques • Innovative applications of AM parts (for tooling, high temperature or high performance applications) • Process monitoring and non-destructive testing of AM parts • Speed-up strategies for AM processes • New test methods and special features of AM parts