A nonlinear theory for CFRP strengthened aluminum beam

Fan-mao, Meng; Li, Wanxin; Fan, Hualin; Zhou, Yinzhi

doi:10.1016/j.compstruct.2015.06.022

Cited by 13 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, three layers of CFRP were composed of two adhesive layers to produce a total thickness of 1.48 mm. 6 In order to provide better mechanical interlocking of substrates (i.e. steel plates), they performed angular grinding of the bonding surfaces followed by acetone washing.…”

Section: Experimental Results On Dsjsmentioning

confidence: 99%

A strain-based criterion for failure load prediction of steel/CFRP double strap joints

Razavi

Ayatollahi

Majidi

et al. 2018

Composite Structures

View full text Add to dashboard Cite

One of the most effective approaches to improve the strength of steel structures is using the carbon fiber reinforced polymer (CFRP) as externally-bonded sheets. In this paper, a strain-based failure criterion, namely the critical normal strain (CNS) is employed to predict the failure load of adhesively bonded double strap joints which are made of CFRP and steel plates. According to this approach, the adhesive joint fails when the normal strain along the adhesive mid-line attains a critical value at a critical distance. This work is based on a two-dimensional linear elastic finite element analysis. Failure load capacities are estimated theoretically for steel/CFRP double strap joints with different bonding lengths. The predicted values of failure loads are compared with the experimental data reported in literature. It is shown that a good consistency exists between the experimental failure loads and the theoretical predictions based on the new strain-based criterion. x distance from the bonding edge MHSM modified Hart smith model PCNS theoretical failure load predicted by CNS criterion PExp. experimental failure load SLJ single lap joint 1. Introduction Carbon fibre reinforced polymer (CFRP) sheets have many applications in industrial components, for instance they are used in order to increase the service life and load carrying capacities of damaged steel 3 structures. Nowadays, Due to the reduced weight and cost of CFRP laminates, they are often applied in retrofitting of steel structures instead of utilizing the conventional mechanical fastening procedures like welding or bolting. In huge industries like aerospace, wind energy, marine structures, etc., application of CFRP laminates is widely growing. One of the major applications of CFRP laminates is to reduce the overall weight of structures. For instance, it can be pointed to Boeing 787 aircraft, in which 43% of metal structures including fuselage, wing, etc. were replaced by CFRP laminates. Therefore, since CFRP have attracted considerable attention as a new retrofitting material to increase the LBC and the service life of structural components, proposing a suitable failure prediction model to estimate the load bearing capacities (LBCs) of the steel/CFRP bonded joints can be very necessary. Up to now, many approaches have been proposed to analyze the behavior of steel components strengthened with CFRP patches [1-5], including nonlinear theory [6], digital image correlation (DIC) [7-10], extended finite element method (XFEM) [11, 12] and cohesive zone model (CZM) [13-16].Determination of failure mechanisms in steel/CFRP adhesive bonded joints is an important issue due to its undeniable effect on the operational life of the components. Several failure criteria have been proposed by researchers to predict the failure load of adhesively bonded joints. The majority of the available failure criteria are based on stress, strain or energy condition in the bond layer [17][18][19][20][21][22][23][24]. Due to their importance shear stress and normal stress (also known ...

show abstract

Section: Experimental Results On Dsjsmentioning

confidence: 99%

A strain-based criterion for failure load prediction of steel/CFRP double strap joints

Razavi

Ayatollahi

Majidi

et al. 2018

Composite Structures

View full text Add to dashboard Cite

show abstract

“…Similarly, the employment of composite-metal structures for civil applications is also very promising. Carbon-Fiber Reinforced Polymers (CFRP) can be used to reinforce bridge constructions [1], to increase the flexural rigidity of aluminum beams [2], to repair and strengthen structural components [3][4][5] and even to protect from fire and thermally insulate lightweight structural materials [6].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of mechanical clinching for joining aluminum AA6082-T6 and Carbon Fiber Reinforced Polymer sheets

Lambiase

2016

Materials & Design

114

View full text Add to dashboard Cite

“…Simultaneously, aluminum alloys, recognized for their efficiency as lightweight materials, have gained prominence in the aerospace [12] and automotive sectors [13] due to their balanced strength, controllable ductility, and remarkable corrosion resistance [14]. In current mainstream electric vehicle battery enclosure systems, nearly 60% of the frame components are made of aluminum alloy material, showcasing the growing adoption of overall aluminum alloy designs.…”

Section: Introductionmentioning

confidence: 99%

Clinching of Carbon Fiber-Reinforced Composite and Aluminum Alloy

Han,

2024

Metals

View full text Add to dashboard Cite

The extensive use of carbon fiber-reinforced composites and aluminum alloys represents the highest level of automotive body-in-white lightweighting. The effective and secure joining of these heterogeneous materials remains a prominent and actively researched topic within the scientific community. Among various joining techniques, clinching has emerged as a particularly cost-effective solution, experiencing significant advancements. However, the application of clinching is severely limited by the properties of the joining materials. In this work, various clinching processes for the joining of composites and aluminum alloys reported in recent research are described in detail according to three broad categories based on the principle of technological improvement. By scrutinizing current clinching technologies, a forward-looking perspective is presented for the future evolution of clinching technology in terms of composite–aluminum joints, encompassing aspects of tool design, process analysis, and the enhancement of joint quality. This work provides an overview of current research on clinching of CFRP and aluminum and serves as a reference for the further development of clinching processes.

show abstract

A nonlinear theory for CFRP strengthened aluminum beam

Cited by 13 publications

References 8 publications

A strain-based criterion for failure load prediction of steel/CFRP double strap joints

A strain-based criterion for failure load prediction of steel/CFRP double strap joints

Feasibility of mechanical clinching for joining aluminum AA6082-T6 and Carbon Fiber Reinforced Polymer sheets

Clinching of Carbon Fiber-Reinforced Composite and Aluminum Alloy

Contact Info

Product

Resources

About