Structural behavior and modeling of full-scale composite structural insulated wall panels

Mousa, Mohammed A.; Uddin, Nasim

doi:10.1016/j.engstruct.2012.03.028

Cited by 50 publications

(35 citation statements)

References 10 publications

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“…A comprehensive explanation of CSIP concept, materials characteristics, and manufacturing techniques is proved by Vaidya and Uddin [10]. Mousa and Uddin carried out a series of study in order to determine the global buckling, debonding interfacial tensile stress, critical wrinkling stress, equivalent stiffness, and deflection for CSIPs [10,11]. eoretical and experimental studies have demonstrated that CSIPs are characterized by high strengthto-weight ratio, excellent thermomechanical properties, and superior corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

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Flexural Behaviors of Concrete/EPS‐Foam/Glass‐Fiber Composite Sandwich Panel

Liu

Uddin

et al. 2018

Advances in Materials Science and Engineering

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Composite structural insulated panels (CSIPs) have been developed for structural floor applications instead of traditional structural insulated panels (SIPs). However, the load bearing capacity of CSIPs is low due to the debonding between the top face sheet and the core when they are used for floors. To overcome this drawback, an improved composite structural insulated panel (ICSIP) was proposed and analyzed in this paper. In ICSIPs, a thick layer of concrete is used as the top face sheet instead of glass-fiber-reinforced polymer (GFRP) in CSIPs to increase the stiffness of the top compression face sheet. However, the bottom GFRP face sheet and EPS cores in CSIPs are preserved to reduce the weight of the structure and act as a template for the top concrete panels. Full-scale experimental testing and finite-element analysis were conducted to predict the flexural strength and deflection of the ICSIP floor member. Good agreement has been observed between the numerical results and experimental response up to the failure. The cause of failure of ICSIPs is the crushing of concrete face sheet rather than debonding. Moreover, the calculation formula for the ultimate bearing load and deflection was also developed based on the classical sandwich theory. The theoretical predictions reflect well the linear flexural response of the ICSIPs, while deviate as the load increases up to failure due to the theory limitations.

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Section: Introductionmentioning

confidence: 99%

“…However, two drawbacks of CSIPs are still noticeable when they are used as oors or large span roofs. One is the de ection of CSIPs is large relatively in despite of the high strength [10][11][12][13]. e elastic modulus of GFRP is comparatively small, which leads to a large de ection of CSIPs.…”

Section: Introductionmentioning

confidence: 99%

Flexural Behaviors of Concrete/EPS‐Foam/Glass‐Fiber Composite Sandwich Panel

Liu

Uddin

et al. 2018

Advances in Materials Science and Engineering

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“…All these features lead finally to superior performance of the panels. Therefore, CSIPs have broad application prospects in the wall and roof structures [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and experimental researches of new CSIPs sandwich panels

Yang

Zhu

et al. 2017

MATEC Web Conf.

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Abstract. The advantages of glass fiber reinforced composites (FRP) and SIPs (structural insulated panels) are combined, and a new type of sandwich panel called composite structural insulated panels (CSIPs) is proposed. Through the adhesive bonding, CSIPs are made of FRP as face sheets and expanded polyethylene foam (EPS) as a core. To master the mechanical characteristics of CSIPs, firstly, adopting the large deflection theory of Reissener in this paper derived the calculation formula of displacement and the stability critical load of CSIPs. Then, ANSYS software was used to carry on the analysis of finite element simulation. Finally, a testing piece of CSIP with length 1000mm and breath 1000mm was made and a test was done. The results show that the theoretical analysis results, finite element simulation results and test results are basically coincide. So the calculating formula of deformation and bearing capacity of CSIPs are correct. And CSIPs have the outstanding advantages of light weight and high strength.

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“…Trial FE analyses indicated that the low stiffness of the core leads to significant deformations and so geometric nonlinearity has been taken into account as well. Importance of nonlinear approach has been also reported in recent research [19,21,35]. All tested samples have lost their load-bearing capacity with the initiation of damage, so failure was modelled by ductile damage initiation criterion only, without defining damage evolution behaviour.…”

Section: Fem Model Descriptionmentioning

confidence: 99%

“…CSIP's facings are made of composite materials which make it considerably stronger, immune to biological corrosion and more durable to weather conditions. Such desirable improvements, in comparison to traditional SIPs, make CSIPs a very attractive alternative with a broader field of applications [16][17][18][19][20][21]. Increased strength of this type of sandwich makes it a viable option even in bridge structures [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Failure mode prediction for composite structural insulated panels with MgO board facings

Smakosz

Kreja

2018

AIP Conference Proceedings

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Abstract. Sandwich panels are readily used in civil engineering due to their high strength to weight ratio and the ease and speed of assembly. The idea of a sandwich section is to combine thin and durable facings with a light-weight core and the choice of materials used allows obtaining the desired behaviour. Panels in consideration consist of MgO (magnesium oxide) board facings and expanded polystyrene core and are characterized by immunity to biological corrosion, a high thermal insulation and a relatively low impact on environment. Customizing the range of panels to meet market needs requires frequent size changes, leading to different failure modes, which are identified in a series of costly full-scale laboratory tests. A nonlinear numerical model was created with a use of a commercial ABAQUS code and a user-defined procedure, which is able to reproduce observed failure mechanisms; its parameters were established on the basis of small-scale tests and numerical experiments. The model was validated by a comparison with the results of the full-scale bending and compression tests. The results obtained were in satisfactory agreement with the test data.

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Structural behavior and modeling of full-scale composite structural insulated wall panels

Cited by 50 publications

References 10 publications

Flexural Behaviors of Concrete/EPS‐Foam/Glass‐Fiber Composite Sandwich Panel

Flexural Behaviors of Concrete/EPS‐Foam/Glass‐Fiber Composite Sandwich Panel

Mechanical properties and experimental researches of new CSIPs sandwich panels

Failure mode prediction for composite structural insulated panels with MgO board facings

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