基于计算机断层扫描数据的聚合物高密度泡沫建模技术的发展和适用性研究

IF 1.3 4区 医学 Q4 MATERIALS SCIENCE, BIOMATERIALS Cellular Polymers Pub Date : 2021-12-23 DOI:10.1177/02624893211061631
Anna Hössinger-Kalteis, M. Reiter, M. Jerabek, Z. Major
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引用次数: 0

摘要

由于泡沫在几个领域变得非常重要,并且表征其性能是一项至关重要的任务,因此开发了一个基于计算机断层扫描(CT)测量的高密度闭孔泡沫的有限元模拟模型。由于利用了CT数据,该模型包括真实的微观结构特征,如细胞大小分布。此外,模型中还考虑了泡沫制造过程(注塑)产生的“皮芯皮”微观结构。基于微观结构模型表征了泡沫芯层在拉伸和压缩载荷下的力学行为,以开发泡沫的本构材料模型。这些本构模型能够以较少的计算工作量对泡沫进行进一步的机械表征。用相应的实验结果验证了三种不同密度注塑泡沫的压缩和弯曲试验模拟。因此,可以得出关于高密度泡沫模型的可靠性、适用性和可能的进一步扩展的结论。
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Development and investigation of the applicability of computed tomography data-based modelling technique for polymeric high-density foams
As foams have become very important in several areas and since characterizing their properties is a crucial task, a finite element simulation model for high-density closed cell foams based on computed tomography (CT) measurements is developed. The model includes realistic microstructural features like cell size distribution due to the utilization of CT data. Moreover, a ‘skin-core-skin’ microstructure resulting from the manufacturing process (injection moulding) of the foams is also considered in the model. The mechanical behaviour of the foam’s core layer under tension and compression load is characterized based on the microstructural model to develop constitutive material models of the foam. These constitutive models enable further mechanical characterization of the foam with less computational effort. Compression and bending test simulations of injection moulded foams with three different densities are validated with corresponding experimental results. Thus, conclusions can be drawn regarding the reliability, applicability and possible further extensions of the high-density foam model.
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来源期刊
Cellular Polymers
Cellular Polymers 工程技术-材料科学:生物材料
CiteScore
3.10
自引率
0.00%
发文量
9
审稿时长
3 months
期刊介绍: Cellular Polymers is concerned primarily with the science of foamed materials, the technology and state of the art for processing and fabricating, the engineering techniques and principles of the machines used to produce them economically, and their applications in varied and wide ranging uses where they are making an increasingly valuable contribution. Potential problems for the industry are also covered, including fire performance of materials, CFC-replacement technology, recycling and environmental legislation. Reviews of technical and commercial advances in the manufacturing and application technologies are also included. Cellular Polymers covers these and other related topics and also pays particular attention to the ways in which the science and technology of cellular polymers is being developed throughout the world.
期刊最新文献
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