Detection of delamination of steel–polymer sandwich composites using acoustic emission and development of a forming limit diagram considering delamination

Yang, Ji‐Woong; Yu, Woong‐Ryeol

doi:10.1016/j.heliyon.2023.e16942

Cited by 4 publications

(4 citation statements)

References 32 publications

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“…The consequences of impacts with low velocities (stones from the airfield pavement, hail, birds, falling tools, etc.) or pressure pulses are more diverse [38][39][40] (Figure 3c,d). All of these cases are accompanied by delaminations.…”

Section: Percussion Loadsmentioning

confidence: 99%

“…In cases where Mode I predominates in the delamination crack near the plate edge (structures [0/90 • ], [±θ • /0/90 • ]), its growth is usually stable under tension, heating and increasing humidity ( [40]-FEM, [91,93]-experiment).…”

Section: Processes Of Delamination Growthmentioning

confidence: 99%

“…In this review, we will focus on the general characterization of approaches, and some of the stability problems and critical behavior that are characteristic of composites. As in traditional problems, the issues of delamination stability are reduced to eigenvalue problems [11,40,49] or energy methods [14,15,23,50,56,57,63,77]. At the same time, nonlinear technical theories of plates [15,77] and shells [11,50,63] are used, as well as the FEM [91,94].…”

Section: Delamination Resistancementioning

confidence: 99%

“…In a momentless undisturbed state (compression), bulging delamination is the only option when the load increases. If the subcritical state is momentary, As in traditional problems, the issues of delamination stability are reduced to eigenvalue problems [11,40,49] or energy methods [14,15,23,50,56,57,63,77]. At the same time, nonlinear technical theories of plates [15,77] and shells [11,50,63] are used, as well as the FEM [91,94].…”

Section: Delamination Resistancementioning

confidence: 99%

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A Review of Delamination Damage of Composite Materials

Huang,

Bobyr

2023

J. Compos. Sci.

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The theoretical and practical achievements in the field of the theory of strength and reliability of composite materials are discussed in a review conducted on the scientific research conducted on the effect of delamination on the reliability and quality of composites. The methodological aspects of the stability of the mechanical characteristics of composite materials under the combined action of cyclic and impact loads are examined, as are the manufacturing and processing technologies. The reasons for delamination, such as technological, manufacturing and application, free edge, joints and loads, are revealed. The influence of delamination on the bearing capacity of structural elements made of composite materials is analyzed. The mechanism of delamination growth is outlined, and the criteria and processes are defined, such as the growth of delamination cracks in a multidirectional laminated plate from a straight edge, edge delamination during plate bending, delamination in plates in the field of residual stresses, etc. The importance of taking into account the visco-plastic effect at the top of the edge crack of delamination of composite materials is emphasized. The concept of critical delamination behavior is characterized, and the issues of delamination stability are described.

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Section: Percussion Loadsmentioning

confidence: 99%

Section: Processes Of Delamination Growthmentioning

confidence: 99%

Section: Delamination Resistancementioning

confidence: 99%

Section: Delamination Resistancementioning

confidence: 99%

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A Review of Delamination Damage of Composite Materials

Huang,

Bobyr

2023

J. Compos. Sci.

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Acoustic Emission in a Bimaterial with an Internal Crack

Stankevych,

Babyak

2023

2023 IEEE XXVIII International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIP

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Investigation on the Bending Properties and Geometric Defects of Steel/Polymer/Steel Sheets—Three-Point and Hat-Shaped Bending

Maleki,

Shahzamanian,

Basirun

et al. 2024

Metals

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Steel/polymer/steel laminates, also known as laminated steels, are composite materials consisting of bonding layers of steel and polymer. The polymer layer acts as a bonding agent between the steel layers, imparting additional properties such as low density, impact resistance, and thermal insulation, while the steel layers provide strength and formability. These laminated steels have found increasing applications in automotive, aerospace, and construction industries to reduce weight and improve fuel efficiency. The bending behavior of this laminates is more complex compared to that of a single layer of metallic sheets. This complexity arises from significant differences in mechanical properties, as well as the thickness ratio between the skin and the core. The flexural properties and behavior of different St14/TPU/St14 laminate sheets that were fabricated using the direct roll bonding (DRB) process were investigated through three-point and hat-shaped bending tests. The direct roll bonding process involves the bonding of steel and semi-melt polymer sheets under the pressure of rollers, ensuring a cohesive and durable composite material. The microscopic analysis of the cross-section of the SPS laminates after the bending processes shows the absence of delamination or slippage between the layers, which indicates the correct selection of materials and the bonding method. The results showed that the springback of three-layer laminates has an inverse relationship with the work-hardening exponent, yield strength, and yield point elongation value, while possessing a direct relationship with normal anisotropy and elastic modulus. Furthermore, the flexural strength and flexural modulus decrease with the increase in the volume fraction of the polymeric core, while the flexural rigidity increases. The findings indicate the DRB technique as a promising method for manufacturing a lightweight metal–polymer laminate with a high formability performance.

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Detection of delamination of steel–polymer sandwich composites using acoustic emission and development of a forming limit diagram considering delamination

Cited by 4 publications

References 32 publications

A Review of Delamination Damage of Composite Materials

A Review of Delamination Damage of Composite Materials

Acoustic Emission in a Bimaterial with an Internal Crack

Investigation on the Bending Properties and Geometric Defects of Steel/Polymer/Steel Sheets—Three-Point and Hat-Shaped Bending

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