VIII Conference on Mechanical Response of Composites最新文献_第10页

Modelling the Influence of The Stacking Order on Damage in Laminated Composites 叠层顺序对复合材料损伤影响的建模

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.119

M. Nicol, F. Laurin, M. Hirsekorn, J. Maire, W. Albouy, S. Treutenaere

引用次数: 0

Mesoscale Modelling of Woven Composite Materials with Manufacturing Defect Using Micro-Tomography Images 基于微层析成像的编织复合材料制造缺陷的中尺度模拟

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.112

G. Fourrier, C. Fagiano, M. Hirsekorn, F. Leroy, A. Rassineux, E. Baranger

引用次数: 1

Modeling and Simulation of Recycled Carbon Fiber Reinforced Composites with Varying Fiber Lengths 不同纤维长度的再生碳纤维增强复合材料建模与仿真

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.085

T. Lang, M. Hasan, T. Gereke, A. Abdkader, C. Cherif

引用次数: 0

An Updated Simulation Framework for the Prediction of Process Induced Shape Distortion in Thermoset Composites 热固性复合材料工艺变形预测的更新模拟框架

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.065

M. Fagerström, G.Catalanotti, N. Traiforos, Thomas Turner, Patrik Runeberg, Daoud Fernass, Dimitrios Chronopoulos, F. Glock, Gerd Schuhmacher

引用次数: 0

A Novel Plasticity-Damage Constitutive Model for Unidirectional Long Fibre Reinforced Polymer 单向长纤维增强聚合物塑性损伤本构模型

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.106

I. Cózar, P. Maimí, F. Otero, E. González, P. Camanho, S. Miot, A. Turón

{"title":"A Novel Plasticity-Damage Constitutive Model for Unidirectional Long Fibre Reinforced Polymer","authors":"I. Cózar, P. Maimí, F. Otero, E. González, P. Camanho, S. Miot, A. Turón","doi":"10.23967/composites.2021.106","DOIUrl":"https://doi.org/10.23967/composites.2021.106","url":null,"abstract":"The increasing use of advanced composite materials in complex structures requires extensive experimental test campaigns to understand their mechanical response. To reduce the size of the test campaigns, efﬁcient and reliable numerical tools are required. A new constitutive model have been developed to allow for more accurate and robust description of the mechanical behaviour of composite materials. The constitutive model allows to predict the inelastic deformation and fracture of a transversely isotropic unidirectional composite material at the meso-scale level within the framework of the inﬁnitesimal strain theory. In the directions governed by the polymer, the model initially accounts for an elastic behaviour until the onset of plasticity is reached. Then, plasticity is taken into account until the onset of damage. In the ﬁbre direction, the model describes the elastic response until the onset of damage and no plasticity is considered. When a crack nucleates, it propagates without plasticity in any direction (i.e. polymer and ﬁbre directions). In this study, a yield function combined with non-associated ﬂow rule is proposed. It allows for the volumetric plastic strains to be imposed. The shape of the yielding and damage surfaces can be modiﬁed as a function of two and six parameters, respectively. The damage model is based on the","PeriodicalId":392595,"journal":{"name":"VIII Conference on Mechanical Response of Composites","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123244991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discrete-to-Continuum Coupling of Pre-Deformed Thermoplastic Polymers 预变形热塑性聚合物的离散-连续耦合

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.054

C. Bauer, S. Pfaller

引用次数: 0

Numerical Study of yhe Creep Buckling Response of Laminated Orthotropic Linear Viscoelastic Cylindrical Shells 正交各向异性线性粘弹性层合圆柱壳蠕变屈曲响应的数值研究

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.078

M. Todt, R. Tomáš, T. Koch, H. Pettermann

引用次数: 0

Continuum Damage Micromechanics Model for the Compressive Failure of Flax Fiber Composites and Experimental Validation 亚麻纤维复合材料压缩破坏连续损伤细观力学模型及实验验证

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.005

V. Tojaga, A. Prapavesis, J. Faleskog, T. Gasser, A. Vuure, S. Östlund

{"title":"Continuum Damage Micromechanics Model for the Compressive Failure of Flax Fiber Composites and Experimental Validation","authors":"V. Tojaga, A. Prapavesis, J. Faleskog, T. Gasser, A. Vuure, S. Östlund","doi":"10.23967/composites.2021.005","DOIUrl":"https://doi.org/10.23967/composites.2021.005","url":null,"abstract":"We develop a thermodynamically consistent continuum damage micromechanics model for the compressive failure of flax fiber composites. We used a micromechanics-based constitutive model reported recently [1]. It describes the microstructure of a unidirectional composite and captures the material behavior of the fiber and matrix constituents, respectively. The description has been formulated in the reference configuration (i.e. the undeformed state of the composite) and is therefore independent of fiber rotations that may appear during the deformation of the composite. A hyperelastic finite deformation plasticity with power law hardening [3] mimics the compressive elastic-plastic stress-strain response of the fiber (reported in [2]) and the matrix. The model has been extended to account for fiber damage, resulting in a thermodynamically consistent continuum damage micromechanics model. Our results indicate that fiber damage plays an utmost role in the compressive failure of flax fiber composites – it is a major determinant of the material’s compressive stress-strain response. X-ray Computed Tomography and Scanning Electron Microscopy show that fiber damage can be attributed to intra-fiber splitting and elementary fiber crushing.","PeriodicalId":392595,"journal":{"name":"VIII Conference on Mechanical Response of Composites","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116739165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tensile Response of Automated Fibre Placement (AFP) Coupons Including Gaps and Overlaps: Experiments vs. Simulations 包括间隙和重叠的自动纤维放置(AFP)卷的拉伸响应:实验与模拟

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.089

S. García Rodriguez, A. Chiappini, C. Huchette, S. Miot, C. Fagiano, L. Barrière

{"title":"Tensile Response of Automated Fibre Placement (AFP) Coupons Including Gaps and Overlaps: Experiments vs. Simulations","authors":"S. García Rodriguez, A. Chiappini, C. Huchette, S. Miot, C. Fagiano, L. Barrière","doi":"10.23967/composites.2021.089","DOIUrl":"https://doi.org/10.23967/composites.2021.089","url":null,"abstract":"While Automated Fibre Placement (AFP) enables the manufacturing of large and geometrically complex composite structures in relatively short cycle times, the robots induce singularities that may impair the structural integrity of the component [1-2]. The aim of this study is to characterize and predict the tensile response of composite coupons including “gaps” and “overlaps”. Several AFP carbon/epoxy laminates were manufactured and subsequently cured in the autoclave. To gain insight into the microstructure and wrinkling patterns associated to each AFP-configuration, non-tested coupons were inspected using an EasyTom 230 X-ray computed tomography (CT) system located at IRT Saint-Exupéry (e.g. Figure 1a). To characterize their mechanical response, a tensile experimental campaign was carried out at ONERA (plain and open-hole coupons assisted by digital image correlation and acoustic emission) combined with ex-situ X-ray tomography inspections at incremental stress levels. In parallel to the experimental campaign, a numerical methodology was developed to predict the ultimate strength of AFP-coupons. The finite-elements models relied on a realistic description of the coupon’s geometry based on the CT results (e.g. Figure 1b), and were performed using Abaqus/Standard coupled with Onera’s Progressive Failure Model (OPFM) [3].","PeriodicalId":392595,"journal":{"name":"VIII Conference on Mechanical Response of Composites","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129230173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical - Experimental Approach for the Correlation Structure Determination of Short Fiber Reinforced Structures 短纤维增强结构相关结构确定的数值-实验方法

VIII Conference on Mechanical Response of Composites Pub Date : 1900-01-01 DOI: 10.23967/composites.2021.018

N. Rauter, I. Widera, R. Lammering

引用次数: 0