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Shape Memory Composite Deformable Mirrors

机译:形状内存复合可变形镜

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摘要

This paper deals with some of the critical aspects regarding Shape Memory Composite (SMC) design: firstlysome technological aspects concerning embedding technique and their efficiency secondarily the lack of usefulnumerical tools for this peculiar design. It has been taken into account as a possible application a deformablepanel which is devoted to act as a substrate for a deformable mirror.The activity has been mainly focused to the study of embedding technologies, activation and authority. Indetail it will be presented the "how to" manufacturing of some smart panels with embedded NiTiNol wires inorder to show the technology developed for SMC structures. The first part of the work compares non conventionalpull-out tests on wires embedded in composites laminates (real condition of application), with standard pull-outin pure epoxy resin blocks.Considering the numerical approach some different modeling techniques to be implemented in commercialcodes (ABAQUS) have been investigated. The Turner's thermo-mechanical model has been adopted for themodeling of the benchmark: A spherical panel devoted to work as an active substrate for a Carbon FiberReinforced Plastic (CFRP) deformable mirror has been considered as a significant technological demonstratorand possible future application (f=240mm, r.o.c.=1996mm).
机译:本文涉及形状记忆复合材料(SMC)设计的一些关键方面:关于嵌入技术的第一个技术方面及其效率,其缺乏这种特殊设计的有用工具。它被考虑为可能的应用,该涂抹致力于充当可变形镜的基材。该活动主要集中于嵌入技术,激活和权威的研究。托管将显示“如何”制造一些智能面板,其中一些智能面板与嵌入式Nitinol Wirs InOrder以显示为SMC结构开发的技术。工作的第一部分比较了嵌入复合材料层压板(施用实际条件)的导线上的非传统纸屑测试,标准拉出纯环氧树脂块。数值方法在商业基础中实施了一些不同的建模技术(ABAQUS )已经被调查过。已经采用了基准的主题的特纳的热机械模型:致力于作为碳纤维纤维塑料(CFRP)可变形镜子的活性基板的球形面板被认为是一个重要的技术证明和可能的未来应用(F = 240mm ,roc = 1996mm)。

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