A review on process-induced distortions of carbon fiber reinforced thermosets for large-scale production

Amann, Christoph; Kreissl, Sebastian; Grass, Hannes; Meinhardt, Josef

doi:10.1007/s11740-017-0772-1

Cited by 8 publications

(6 citation statements)

References 72 publications

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“…For the structural analysis, the fiber orientation is mapped onto the structural mesh to consider the process-induced anisotropy [40,41]. Furthermore, residual stresses due to the manufacturing process are considered in subsequent analyses for computing distortions of the structure [42,43].…”

Section: Injection Moldingmentioning

confidence: 99%

Integrated computational product and production engineering for multi-material lightweight structures

Hürkamp

Dér

Gellrich

et al. 2020

Int J Adv Manuf Technol

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Within product development processes, computational models are used with increasing frequency. However, the use of those methods is often restricted to the area of focus, where product design, manufacturing process, and process chain simulations are regarded independently. In the use case of multi-material lightweight structures, the desired products have to meet several requirements regarding structural performance, weight, costs, and environment. Hence, manufacturing-related effects on the product as well as on costs and environment have to be considered in very early phases of the product development process in order to provide a computational concept that supports concurrent engineering. In this contribution, we present an integrated computational concept that includes product engineering and production engineering. In a multi-scale framework, it combines detailed finite element analyses of products and their related production process with process chain and factory simulations. Including surrogate models based on machine learning, a fast evaluation of production impacts and requirements can be realized. The proposed integrated computational product and production engineering concept is demonstrated in a use case study on the manufacturing of a multi-material structure. Within this study, a sheet metal forming process in combination with an injection molding process of short fiber reinforced plastics is investigated. Different sets of process parameters are evaluated virtually in terms of resulting structural properties, cycle times, and environmental impacts.

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Section: Injection Moldingmentioning

confidence: 99%

Integrated computational product and production engineering for multi-material lightweight structures

Hürkamp

Dér

Gellrich

et al. 2020

Int J Adv Manuf Technol

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“…Curing or polymerization of a resin is an exothermic chemical reaction process . The rate of heat generation is assumed to be proportional to the rate of cure

\dot{H} = H_{0} \frac{italicdc}{italicdt},

where H is the heat source; H 0 is the total amount of heat generation; and c is the degree of cure.…”

Section: Governing Equationsmentioning

confidence: 99%

“…Curing or polymerization of a resin is an exothermic chemical reaction process. 3,[7][8][9][10][11][12][13] The rate of heat generation is assumed to be proportional to the rate of cureḢ…”

Section: Cure Kineticsmentioning

confidence: 99%

“…The issue of the computational efficiency of the coupled thermo‐chemo‐mechanical macromodel have been addressed by a number of investigators including Cheung et al and Prulière et al that effectively employed a proper orthogonal decomposition. Experimental and model identification procedures were studied in Ruiz and Trochu and Wisnom et al For excellent review articles on the process‐induced residual stresses and distortions, we refer to Amann et al and Baran et al…”

Section: Introductionmentioning

confidence: 99%

“…7 The issue of the computational efficiency of the coupled thermo-chemo-mechanical macromodel have been addressed by a number of investigators including Cheung et al 8 and Prulière et al 9 that effectively employed a proper orthogonal decomposition. Experimental and model identification procedures were studied in Ruiz and Trochu 10 and Wisnom et al 11 For excellent review articles on the process-induced residual stresses and distortions, we refer to Amann et al 12 and Baran et al 13 In this article, we develop a coupled thermo-chemo-mechanical model where the governing equations are stated at the scale of microconstituents and subsequently upscaled. To address the potentially intractable computational complexity involved, the reduced-order homogenization (ROH) originally developed for a single physics problem (mechanical deformation) [14][15][16][17] is employed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A coupled thermo‐chemo‐mechanical reduced‐order multiscale model for predicting process‐induced distortions, residual stresses, and strength

Yuan

Aitharaju

Fish

2019

Numerical Meth Engineering

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Summary We study residual stresses and part distortion induced by a manufacturing process of a polymer matrix composite and its effect on the component strength. Unlike most of the thermo‐chemo‐mechanical models in the literature where governing multiphysics equations are directly formulated on the macroscale, we present a multiscale‐multiphysics approach. To address the enormous computational complexity involved, a reduced‐order homogenization was originally developed for a single physics problem is employed. The proposed reduced‐order two‐scale thermo‐chemo‐mechanical model has been validated for predicting part distortion beam strength in three‐point bending test. It is shown that while macroscopic stresses are relatively low, and therefore often ignored in practice, stresses at the scale of microconstituents are significant and may have an effect on the overall composite component strength.

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Effect of processing method on the spring-in of aircraft ribs

Zhao

et al. 2021

Composites Communications

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A review on process-induced distortions of carbon fiber reinforced thermosets for large-scale production

Cited by 8 publications

References 72 publications

Integrated computational product and production engineering for multi-material lightweight structures

Integrated computational product and production engineering for multi-material lightweight structures

A coupled thermo‐chemo‐mechanical reduced‐order multiscale model for predicting process‐induced distortions, residual stresses, and strength

Effect of processing method on the spring-in of aircraft ribs

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