Progressive damage modelling of hybrid RTM-made composite Π-joint under four-point flexure using mixed failure criteria

Bai, Jiang-Bo; Shenoi, R.A.; Yun, X. Y.

doi:10.1016/j.compstruct.2016.09.083

Cited by 28 publications

(7 citation statements)

References 22 publications

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“…Other strength-based failure criteria for anisotropic materials (Tsai-Hill, Tsai-Wu and Hoffman criteria) may be interpreted as quadratic criteria to substitute for the von Mises yield criterion for isotropic material. 10 In the work of Hashin and Rotem 15 and Hashin, 16 it was found the failure in composites could be divided into fiber failure and matrix failure, and the corresponding 2D failure criteria for unidirectional laminates in tension and compression was proposed. In 2000, Shokrieh proposed modifications to Hashin’s criteria for composite laminates in three dimensions.…”

Section: Progressive Failure Analysismentioning

confidence: 99%

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Progressive failure analysis of marine sandwich joints with a modified material degradation model

Yan

Shen

et al. 2018

Journal of Reinforced Plastics and Composites

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The progressive failure analysis based on a modified stiffness degradation model was proposed to predict mechanical response of sandwich L-joints for ships. A representative volume element was established for the derivation of the modified material degradation model for two-dimensional orthogonal woven fabric structures based on micromechanical theory. The modified Shokrieh failure criterion and six field variables were applied in ABAQUS user subroutines. Three different coordinate systems were used to assign reasonable material orientation. The predictions of ultimate load, stress distribution, load-displacement curve and failure patterns were compared with experimental results. The good consistence indicates the effectiveness of the proposed stiffness degradation model. The FE results show the edge of the arc bracket is the stress concentration area due to the shear lag effect, and the declined slope of load–displacement curve is caused by delamination failure due to the stiffness difference of laminates and foam core.

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Section: Progressive Failure Analysismentioning

confidence: 99%

“…9 Bai et al. 10 also presented a modified progressive failure model based on mixed failure criteria to predict ultimate load of the hybrid π-joints. Numerical modeling and experimental verifications were carried out to predict the failure load of L-joints under certain accuracy.…”

Section: Introductionmentioning

confidence: 99%

Progressive failure analysis of marine sandwich joints with a modified material degradation model

Yan

Shen

et al. 2018

Journal of Reinforced Plastics and Composites

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“…The composite community develops alternative out-of-autoclave (OOA) composite manufacturing technologies in order to solve problems brought from the autoclave process [ 16 , 17 , 18 ]. Vacuum-assisted rein-transfer molding (VARTM) is a method with which resin-transfer power and injection pressure can be adjusted to enhance the wettability between carbon fibers and resin [ 16 , 17 , 19 ]. In the case of the microwave curing process, the matrix is predominantly heated from fibers and the surrounding interface of fiber is totally cured by a higher temperature and heating rate, resulting in the interfacial bonding between fiber and matrix being improved [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Interface Controlled Micro- and Macro-Mechanical Properties of Vibration Processed Carbon Fiber/Epoxy Composites

et al. 2021

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The fiber-resin interface is an important component that significantly affects mechanical properties of composites. Random vibration-assisted vacuum processing (RVAVP), a new method to improve the adhesion of the fiber-resin interface, was presented. The effects of different curing processes on mechanical properties were comprehensively assessed by combining the fiber push-out test, finite element model simulation, cure monitoring approach, and short-beam three-point bending test, and the correlation between fiber volume fraction and mechanical properties was quantified by a facile thermogravimetric analysis-based methodology. The results revealed that application of random vibration during the curing process can promote the impregnation of resin into fibers and impede the growth of interface defects while improving mechanical properties at the same time. For this reason, the laminates produced by RVAVP exhibited the average interfacial shear strength of 78.02 MPa and the average interface fracture toughness of 51.7 J/m2, which is obtained a 48.26% and 90.77% improvement compared with the 0 MPa autoclave process. With the large observed increase in micro-mechanical properties, the average interlaminar shear strength of 93.91 MPa showed a slight reduction of 5.07% compared with the 0.6 MPa autoclave process. Meanwhile, the mechanical properties tended to be stable at the fiber volume fraction of 65.5%.

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“…A predefined crack path was required in the FEA model in a similar investigation by Chen et al where the crack initiated in the filler [5]. Bai et al [6] used a progressive damage model based on the Hashin failure criterion and cohesive model to detect the initial failure of a 𝜋-joint under tensile loading. The numerical model underpredicted the initial failure load by 21%.…”

Section: Introductionmentioning

confidence: 99%

High fidelity analysis to predict failure in T-joints

Sápi

Butler

Rhead

2019

Composite Structures

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Progressive damage modelling of hybrid RTM-made composite Π-joint under four-point flexure using mixed failure criteria

Cited by 28 publications

References 22 publications

Progressive failure analysis of marine sandwich joints with a modified material degradation model

Progressive failure analysis of marine sandwich joints with a modified material degradation model

Interface Controlled Micro- and Macro-Mechanical Properties of Vibration Processed Carbon Fiber/Epoxy Composites

High fidelity analysis to predict failure in T-joints

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