HyTop: Development of a coupled topology optimization method for injection-molded, short fiber-reinforced polymer-metal hybrid composites to support the product engineer in design synthesis
HyTop:开发用于注塑、短纤维增强聚合物-金属混合复合材料的耦合拓扑优化方法,以支持产品工程师进行设计综合
基本信息
- 批准号:442072701
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2020
- 资助国家:德国
- 起止时间:2019-12-31 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The aim of this research project is the development of a topology optimization method for the optimization of short-fiber reinforced thermoplastic (SFT) -metal hybrid structures under consideration of thermally induced shrinkage, resulting residual stresses and local anisotropic material properties from the injection molding process. Since the maximum force in the event of failure is decisive for the design of the hybrid structure, it should be maximized in the optimization. As could be shown in previous studies, the shape of the metal insert is decisive for the force-displacement behavior of the polymer-metal hybrid composite for a given polymer matrix and assumed adhesion behavior. Therefore, the topology optimization method to be investigated should optimize the geometry of the metal insert and consider the following aspects: 1) the resulting geometry of the insert and 2) the filling of the resulting cavities in the insert with the SFT-component iteratively. Furthermore, the topology optimization method should consider the material properties of the metal as well as the SFT-matrix in the iterations. For this purpose, models described in the literature for simulating the thermal and mechanical behavior are to be integrated. In addition to the load-dependent strains and stresses, residual stresses in the SFT structure should also be taken into account. Representing the two materials of the considered hybrid structure, the steel insert is modelled according to the material HC420LA and the surrounding SFT matrix according to the thermoplastic polypropylene with variable glass fiber reinforcement content of 20, 40 and 60 volume-%.The following subgoals can be derived for the development of the topology optimization method for the design of SFT-metal hybrid structures:• Investigation of suitable modelling approaches for the simulative mapping of the mechanical and thermal properties of the SFT-matrix in the structural model for topology optimization• Investigation of different modeling approaches of the cohesive zone between metal insert and SFT-matrix in the topology optimization method• Investigate a method for automatically building the structural model for topology optimization, including filling the gaps in the metal insert with the complementary material• Investigation of different approaches for the adaptation of the sensitivity-based topology optimization process for the optimization of the SFT-metal hybrid structures in shape finding• Derivation of design guidlines and implementation of corresponding boundary conditions into the topology optimization method (e.g. minimum radii, minimum cavity size)
本研究项目的目的是开发一种拓扑优化方法,以优化短纤维增强热塑性塑料(SFT) -金属混合结构,考虑热致收缩,由此产生的残余应力和注射成型过程中的局部各向异性材料特性。由于破坏时的最大力对混合动力结构的设计具有决定性作用,因此在优化时应使其最大化。正如之前的研究表明的那样,对于给定的聚合物基体和假设的粘附行为,金属插入物的形状对聚合物-金属杂化复合材料的力-位移行为起决定性作用。因此,所研究的拓扑优化方法应优化金属镶块的几何形状,并考虑以下几个方面:1)最终镶块的几何形状;2)最终镶块中的空腔被sft分量迭代填充。此外,拓扑优化方法在迭代过程中不仅要考虑sft矩阵,还要考虑金属的材料特性。为此,将文献中描述的用于模拟热学和力学行为的模型结合起来。除了荷载相关的应变和应力外,SFT结构中的残余应力也应考虑在内。代表所考虑的混合结构的两种材料,钢嵌件根据材料HC420LA建模,周围的SFT基体根据玻纤增强量为20、40和60体积%的热塑性聚丙烯建模。对于sft -金属混合结构设计的拓扑优化方法的发展,可以推导出以下子目标:•研究适合的建模方法,用于拓扑优化结构模型中sft -矩阵的力学和热性能的模拟映射•研究拓扑优化方法中金属插入物与sft -矩阵之间粘接区域的不同建模方法•研究一种用于sft -金属混合结构设计的方法研究了基于灵敏度的拓扑优化过程对sft -金属混合结构寻形优化的不同适应方法。推导了拓扑优化方法的设计准则,并在拓扑优化方法中引入了相应的边界条件(如最小半径、最小空腔尺寸)
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr.-Ing. Albert Albers其他文献
Professor Dr.-Ing. Albert Albers的其他文献
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{{ truncateString('Professor Dr.-Ing. Albert Albers', 18)}}的其他基金
Fiber Beads: Development of a numerical method for the synthesis of fiber-reinforced bead patterns
纤维珠:开发用于合成纤维增强珠图案的数值方法
- 批准号:
431606085 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Research Grants
Development of a methodology for the derivation of variations in PGE on the basis of partially quantified embodiment-function-models using the example of clutch judder by forced excitation
以部分量化的实施函数模型为基础,使用强制励磁引起的离合器抖动示例,开发了一种推导 PGE 变化的方法
- 批准号:
416374536 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Research Grants
SLM-Topo: Development of a process specific topology optimization method for additive manufacturing of lightweight structures examplified by the SLM process
SLM-Topo:开发一种用于轻质结构增材制造的工艺特定拓扑优化方法,以 SLM 工艺为例
- 批准号:
399233791 - 财政年份:2018
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Research Grants
Influencing factors on knowledge transfer in product development processes Continuation Proposal:Increase in quality of knowledge transfers in product generation development
产品开发过程中知识转移的影响因素延续提案:提高产品一代开发中知识转移的质量
- 批准号:
316054215 - 财政年份:2016
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Research Grants
Development of highly durable thin-film sensors for studying pressure and temperature distribution in contacts under mixed friction
开发高度耐用的薄膜传感器,用于研究混合摩擦下接触中的压力和温度分布
- 批准号:
278665175 - 财政年份:2015
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Research Grants
Stiffening of cambered sheet metal designs: numeric bead optimization by a coupled algorithm considering nonlinear forming limits
弧形钣金设计的加固:通过考虑非线性成形极限的耦合算法进行数值焊道优化
- 批准号:
254853550 - 财政年份:2014
- 资助金额:
-- - 项目类别:
Research Grants
Design strategies and production processes of strength-optimised lightweight structures made of composites with variableaxial fibre architecture (OptiTex)
由可变轴纤维结构复合材料制成的强度优化轻质结构的设计策略和生产工艺(OptiTex)
- 批准号:
246524254 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Research Grants
Optimization of tribological systems by aimed anticipation of the running-in by final machining on the example of journal bearings
以轴颈轴承为例,通过最终加工的磨合目标优化摩擦学系统
- 批准号:
200420171 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Priority Programmes
Numerische Untersuchung von Reibmechanismen in Mischreibungsgebieten unter Berücksichtigung der Einflüsse der Oberflächenrauhigkeiten
考虑表面粗糙度影响的混合摩擦区域摩擦机理的数值研究
- 批准号:
63628754 - 财政年份:2008
- 资助金额:
-- - 项目类别:
Research Grants
Entwicklung eines Algorithmus zur Optimierung der Versickerung von Blechbauteilen unter Berücksichtigungg von Fertigungsrestriktionen
开发一种算法来优化钣金部件的渗漏,同时考虑制造限制
- 批准号:
63178613 - 财政年份:2008
- 资助金额:
-- - 项目类别:
Research Grants
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