3D explicit finite element analysis of tensile failure behavior in adhesive-bonded composite single-lap joints

Ye, Jinxin; Yan, Ying; Li, Jie; Hong, Yang; Tian, Zhiyuan

doi:10.1016/j.compstruct.2018.05.134

Cited by 55 publications

(22 citation statements)

References 33 publications

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“…Considering that joints represent one of the most challenging design features to tackle in composites due to their discontinuity and high local stress concentration [ 60 ], the single-lap joint shear tests were conducted on the basis of an optimization study for the bonding parameters of pressure, temperature, and time of processing by hot press. The value range defined for each parameter was selected not only according to similar studies [ 45 , 51 , 56 , 58 , 59 , 79 , 80 ], but also according to observations of the composite in terms of its thermal properties and preliminary co-cure assessments. The specimens were identical with regard to their overall dimensions to those subjected to tensile tests.…”

Section: Methodsmentioning

confidence: 99%

In-Plane Shear Strength of Single-Lap Co-Cured Joints of Self-Reinforced Polyethylene Composites

et al. 2021

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The present study introduces the analysis of single-lap co-cured joints of thermoplastic self-reinforced composites made with reprocessed low-density polyethylene (LDPE) and reinforced by ultra-high-molecular-weight polyethylene (UHMWPE) fibers, along with a micromechanical analysis of its constituents. A set of optimal processing conditions for manufacturing these joints by hot-press is proposed through a design of experiment using the response surface method to maximize their in-plane shear strength by carrying tensile tests on co-cured tapes. Optimal processing conditions were found at 1 bar, 115 °C, and 300 s, yielding joints with 6.88 MPa of shear strength. The shear failure is generally preceded by multiple debonding-induced longitudinal cracks both inside and outside the joint due to accumulated transversal stress. This composite demonstrated to be an interesting structural material to be more widely applied in industry, possessing extremely elevated specific mechanical properties, progressive damage of co-cured joints (thus avoiding unannounced catastrophic failures) and ultimate recyclability.

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Section: Methodsmentioning

confidence: 99%

In-Plane Shear Strength of Single-Lap Co-Cured Joints of Self-Reinforced Polyethylene Composites

et al. 2021

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“…There are three types of 3D explicit FEM models (Model I, Model II, and Model III, Figure ) established by different modeling strategies and failure criteria. [ 21 ] In this study, the failure of adhesive joints is Model III. The distortion energy theory is adopted to predict adhesive failure.…”

Section: Fem Of the Adhesive Joint Under Impact Tensile Loadingsmentioning

confidence: 99%

Finite Element Analysis of Stress Wave Propagation in Adhesive Joints under Low Speed Impact Tensile Loadings

2020

Macro Theory & Simulations

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“…With the explicit time-integration, one can simulate short time physical processes with a very small time increment. A typical example of using explicit method is the lap-joint failure, including the failure of the composite itself as well as the adhesive [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Failure Analysis of Adhesive Joint of Glass Fiber Reinforced Polymer Composite

Takács

Szabó

2019

Period. Polytech. Mech. Eng.

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The adhesive joint is the most widely used joining technique of thermoset composite structures. Analysis of the failure of adhesive joints of composite structures has a high importance due to its significance in industrial applications such as automobile or autobus bodies. In this paper we performed experimental and numerical analysis of a glass fiber reinforced, vinyl-ester matrix composite bonded with a methacrylate adhesive. The critical energy release rate in normal loading direction obtained from standard double cantilever beam test is used as input data in finite element simulations, in which the failure process is modeled by using cohesive zone material. Results of interface elements with exponential and standard contact elements with bilinear cohesive behavior are compared. The use of interface elements is numerically robust, convergence is reached faster, but identical mesh between the parts is needed. It can be a good alternative when simulating sub-models. When using standard contact elements, the robustness needs contact stabilization, however this method does not need identical mesh and it also allows the use of shell elements, therefore it can be used on a full-structure scale with high efficiency.

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3D explicit finite element analysis of tensile failure behavior in adhesive-bonded composite single-lap joints

Cited by 55 publications

References 33 publications

In-Plane Shear Strength of Single-Lap Co-Cured Joints of Self-Reinforced Polyethylene Composites

In-Plane Shear Strength of Single-Lap Co-Cured Joints of Self-Reinforced Polyethylene Composites

Finite Element Analysis of Stress Wave Propagation in Adhesive Joints under Low Speed Impact Tensile Loadings

Experimental and Numerical Failure Analysis of Adhesive Joint of Glass Fiber Reinforced Polymer Composite

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