Numerical and experimental investigation of fitting tolerance effects on bearing strength of CFRP/Al single-lap blind riveted joints

Li, Shipeng; Zhang, Shiguang; Li, Hao; Qin, Xuda; Wu, Xiaozhong; Gui, Linjing

doi:10.1016/j.compstruct.2021.115022

Cited by 25 publications

(7 citation statements)

References 33 publications

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“… C-FRP laminate modeling Prior to damage, C-FRP composites exhibit the characteristics of elastic-brittle material [49]. Hence, it is defined in this study as linear elastic orthotropic material which represents a macroscopic model, and the constitutive relation can be expressed as: [51][52][53][54][55] have shown that degradation of the material properties can be defined either by direct stiffness reduction (DSR) approach or by utilizing stiffness asymptotic functions. DSR approach often results in non-convergence of the numerical model and is not much employed.…”

Section: Hashin Damage (H-d) Criteriamentioning

confidence: 99%

“…DSR approach often results in non-convergence of the numerical model and is not much employed. Therefore, the second approach is considered in this study to improve the mesh convergence, where stiffness reduction parameters are defined as reported by [55]. According to the available literature (source: [51,55]), the damaged stiffness matrix Cd, in general, can be represented as: 𝑏 𝑖𝑗 = damage variables account for material degradation, reported in [55].…”

Section: Hashin Damage (H-d) Criteriamentioning

confidence: 99%

“…Inputs for the H-D model can also be given by writing VUMAT routine and linking it with Abaqus [55].…”

Section: Hashin Damage (H-d) Criteriamentioning

confidence: 99%

“…), a significant quantity of energy is abruptly transmitted to the materials of the structure through stress wave propagation, and the materials experience continuously varying strength/stiffness, elastic modulus, energy-absorption and dissipation effects. Under high strain rates (e.g., 10 -1000 s -1 ), the apparent strength might rise dramatically depending on the material being utilized [55]. In the literature [72], increases in strength of more than 50% for steel, more than 100% for standard concrete in compression, and more than 600% for concrete in tension have all been mentioned.…”

Section: Pre-processingmentioning

confidence: 99%

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Widely Employed Constitutive Material Models in Abaqus FEA Software Suite for Simulations of Structures and Their Materials: A Brief Review

Anas,

Tahzeeb,

Al-Dala’ien

et al. 2024

E3S Web Conf.

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The structural response of masonry/concrete structures depends upon the load-carrying mechanism and subsequently deformations produced by loads carried. In masonry/concrete structures, identification of the stress/strain imposing stress conditions and strain hardening/softening makes the structural response more complicated. Elastic damage models or elastic-plastic constitutive laws are inadequate to simulate masonry/concrete response under high strain-rate loadings. Further, irreversible or plastic strain cannot be realized using the elastic damage model. Several constitutive damage models are available in the literature. In this article, a concise explanation of the functioning of different material models in the Abaqus software package has been provided. These models include concrete damage plasticity for concrete and masonry, traction separation constitutive laws for brick-mortar interface, Hashin's criteria for CFRP, Johnson-Cook plasticity for steel, and crushable foam plasticity hardening for metallic foams. Researchers frequently utilize these models for numerical simulations and modeling of infrastructural elements and their respective materials when subjected to various structural loads. Besides, this paper presents a discourse on problem-solving methods and a comparison between explicit and implicit analysis. The research provides valuable input to researchers and practitioners in the field of structural engineering for an in-depth understanding of the functioning of Abaqus' pre-existing material models.

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Section: Hashin Damage (H-d) Criteriamentioning

confidence: 99%

Section: Hashin Damage (H-d) Criteriamentioning

confidence: 99%

“…Inputs for the H-D model can also be given by writing VUMAT routine and linking it with Abaqus [55].…”

Section: Hashin Damage (H-d) Criteriamentioning

confidence: 99%

Section: Pre-processingmentioning

confidence: 99%

See 2 more Smart Citations

Widely Employed Constitutive Material Models in Abaqus FEA Software Suite for Simulations of Structures and Their Materials: A Brief Review

Anas,

Tahzeeb,

Al-Dala’ien

et al. 2024

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…In addition, poorly designed or assembled articulations are not only an incentive for joint failure but also can lead to reduced durability and reliability of the aircraft structure. Therefore, the performance of mechanical joints for composite or carbon fiber reinforced composite/metal structures has attracted a lot of attention recently (Li et al , 2022).…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructure of fretting wear behavior in 6061-T6 aluminum alloy

Erturun

Odabaş

2023

AEAT

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Purpose The purpose of this study is to investigate the microstructure of fretting wear behavior in 6061-T6 aluminum alloy. The fretting wear of blind riveted lap joints of 6061-T6 aluminum alloy plates, which are widely used in aircraft construction, was investigated. Fretting damages were investigated between the contact surface of the plates and between the plate and the rivet contact surface. Design/methodology/approach Experiments were carried out using a computer controlled Instron testing machine with 200 kN static and 100 kN dynamic load capacity. Max package computer program was used for the control of the experiments. Fretting scars, width of wear scars, microstructure was investigated by metallographic techniques and scanning electron microscopy. Findings It was found that fretting damages were occurred between the plates contacting surface and between the plate and rivet contact surface. As load and cycles increased, fretting scars increased. Fretting wear initially begins with metal-to-metal contact. Then, the formed metallic wear particles are hardened by oxidation. These hard particles spread between surfaces, causing three-body fretting wear. Fretting wear surface width increases with increasing load and number of cycles. Originality/value The useful life of many tribological joints is limited by wear or deterioration of the fretting components due to fretting by oscillating relative displacements of the friction surfaces. Such displacements are caused by vibrations, reciprocating motion, periodic bending or twisting of the mating component, etc. Fretting also tangibly reduces the surface layer quality and produces increased surface roughness, micropits, subsurface microphone.

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Flexural properties and evaluation of Al‐CFRP self‐pierce riveted laminates under three‐point bending loads

Wang,

2024

Polymer Composites

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This study aims to investigate the bending performance and evaluation of aluminum‐carbon fiber reinforced plastic (Al‐CFRP) riveted laminates under varying parameters via self‐pierce riveting and three‐point bending tests. Through the self‐pierce riveting process test, a riveted joint meeting standard requirement was obtained. Based on this joint combination form, Al‐CFRP self‐pierce riveted laminates were prepared. The bending performance test showed the riveted laminate with a span of 80 mm had the greatest bending resistance at a thickness of 2 mm, and the overall strain of the Al‐CFRP self‐pierce riveted laminates was observed by digital image correlation (DIC) technology. Subsequently, validated numerical simulation modeling was conducted by correlating with the test results. On this numerical simulation model basis, further parametric studies and bending performance evaluations (including number of rivets, CFRP lay‐up angle, and laminates width) of the Al‐CFRP self‐pierce riveted laminates were systematically carried out. It was found that the peak load F and bending strength R improved by 1.32% and 26.66%, respectively, while the mass M reduced by 8.99%, for the design variables of var1 of 20 mm, var2 of 6, and var3 of [0/90°]2s.Highlight An Al‐CFRP riveted laminate structure is proposed to improve the bending properties of riveted laminates by changing the rivet parameters and laminate parameters. The bending properties of riveted laminates with different spans were investigated under three‐point bending loading conditions. The DIC technique observed the changes in the strain field of riveted laminates during bending. The effects of different structural parameters on the bending performance of Al‐CFRP riveted laminates were investigated by numerical simulation. An evaluation method combining the gray correlation degree and the combination assignment method is proposed to obtain the optimum riveted laminate structure under bending load conditions.

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Numerical and experimental investigation of fitting tolerance effects on bearing strength of CFRP/Al single-lap blind riveted joints

Cited by 25 publications

References 33 publications

Widely Employed Constitutive Material Models in Abaqus FEA Software Suite for Simulations of Structures and Their Materials: A Brief Review

Widely Employed Constitutive Material Models in Abaqus FEA Software Suite for Simulations of Structures and Their Materials: A Brief Review

Investigation of microstructure of fretting wear behavior in 6061-T6 aluminum alloy

Flexural properties and evaluation of Al‐CFRP self‐pierce riveted laminates under three‐point bending loads

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