Damage suppression in CFRP laminates using embedded shape memory alloy foils

Ogisu, Toshimichi; Shimanuki, Masakazu; Kiyoshima, Satoshi; Takaki, Junji; Takeda, Nobuo

doi:10.1163/1568551041408778

Cited by 9 publications

(10 citation statements)

References 8 publications

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“…When a pre-strained SMA fiber or foil embedded in the laminate is heated, it tends to shrink to its original shape and to instantaneously generate recovery compressive forces along the pre-strained direction in the composite matrix, which are effective at suppressing the initiation and growth of transverse cracks [42][43][44]. This compressive force is generated by the martensitic phase transformation from the SIM phase to the austenite phase.…”

Section: Active Fracture Tougheningmentioning

confidence: 99%

“…Amano et al [42,43] also treated the SMA foils with a 10% NaOH anodic oxidation in order to improve the adhesion performance of the epoxy resin. The same authors [44] cleaned and roughened with 3% fluoride acid-15% nitric acid the SMA (NiTi) foils in order to remove the oxide film created when the material was mechanically rolled. The SMA foils were also cleaned using a solvent when the laminates were manufactured.…”

Section: Interfacial Bonding Maximum Interfacial Adhesionmentioning

confidence: 99%

“…The SMA foils were also cleaned using a solvent when the laminates were manufactured. Amano et al [42,43] and Ogisu et al [44,45] used an epoxy adhesive film to increase the adhesion between the CFRP laminate and SMA (TiNi) foils. In Jang and Kishi [58] the surfaces of the SMA (TiNi) wires were chemically etched for 10 min in 3% HF + 15% HNO 3 solution in order to obtain strong adhesion between the SMA wires and a CFRP matrix.…”

Section: Interfacial Bonding Maximum Interfacial Adhesionmentioning

confidence: 99%

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Impact damage resistance and damage suppression properties of shape memory alloys in hybrid composites—a review

Angioni

Meo

Foreman

2010

Smart Mater. Struct.

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Composite materials are known to have a poor resistance to through-the-thickness impact loading. There are various methods for improving their impact damage tolerance, such as fiber toughening, matrix toughening, interface toughening, through-the-thickness reinforcements, and selective interlayers and hybrids. Hybrid composites with improved impact resistance are particularly useful in military and commercial civil applications. Hybridizing composites using shape memory alloys (SMA) is one solution since SMA materials can absorb the energy of the impact through superelastic deformation or recovery stress, reducing the effects of the impact on the composite structure. The SMA material may be embedded in the hybrid composites (SMAHC) in many different forms and also the characteristics of the fiber reinforcements may vary, such as SMA wires in woven laminates or SMA foils in unidirectional laminates, only to cite two examples. We will review the state of the art of SMAHC for the purpose of damage suppression. Both the active and passive damage suppression mechanisms will be considered.

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Section: Active Fracture Tougheningmentioning

confidence: 99%

Section: Interfacial Bonding Maximum Interfacial Adhesionmentioning

confidence: 99%

Section: Interfacial Bonding Maximum Interfacial Adhesionmentioning

confidence: 99%

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Impact damage resistance and damage suppression properties of shape memory alloys in hybrid composites—a review

Angioni

Meo

Foreman

2010

Smart Mater. Struct.

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“…They have been widely applied in mechanical engineering, civil engineering, aerospace engineering and so on [1][2][3][4][5][6]. At present, in the static and dynamic analysis of engineering structure, research on SMA composite structure mainly involves active and passive control of the deformation, vibration and noise of the beam and shell structure, of which the main composite structures adopted are: (1) SMA films are laminated with a substrate [6][7][8][9][10]; (2) SMA wires and alloying pellets are embedded into a substrate [11,12]; (3) SMA fiber woven layer composite structures [13]. For the first laminated structure, the SMA is usually used as a surface, while the other elastic material is used as a substrate.…”

Section: Introductionmentioning

confidence: 99%

Force-displacement characteristics of simply supported beam laminated with shape memory alloys

Zhen-hua

2011

Acta Mech Sin

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As a preliminary step in the nonlinear design of shape memory alloy (SMA) composite structures, the forcedisplacement characteristics of the SMA layer are studied. The bilinear hysteretic model is adopted to describe the constitutive relationship of SMA material. Under the assumption that there is no point of SMA layer finishing martensitic phase transformation during the loading and unloading process, the generalized restoring force generated by SMA layer is deduced for the case that the simply supported beam vibrates in its first mode. The generalized force is expressed as piecewise-nonlinear hysteretic function of the beam transverse displacement. Furthermore the energy dissipated by SMA layer during one period is obtained by integration, then its dependencies are discussed on the vibration amplitude and the SMA's strain (Ms-Strain) value at the beginning of martensitic phase transformation. It is shown that SMA's energy dissipating capacity is proportional to the stiffness difference of bilinear model and nonlinearly dependent on Ms-Strain. The increasing rate of the dissipating capacity gradually reduces with the amplitude increasing. The condition corresponding to the maximum dissipating capacity is deduced for given value of the vibration amplitude. The obtained results are helpful for designing beams laminated with shape memory alloys.

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“…These are usually called active laminates, since the SMA fibers or layers may assist in controlling the bending, buckling or post-buckling behavior of the composite. There are numerous studies in which new concepts are employed to model the behavior of these composites (see, for example, Wei et al, 1997Wei et al, , 1998Lagoudas et al, 1997;Su et al, 1999;Gall et al, 2000;Thompson and Loughlan, 2000;Lee et al, 2001;Wang et al, 2004;Ogisu et al, 2004;Shimamoto et al, 2004;Aboudi, 2004, 2006;Taketa et al, 2005;Kimura et al, 2006;Aboudi and Freed, 2006;Freed and Aboudi, 2008).…”

mentioning

confidence: 99%

On the transformation toughening of a crack along an interface between a shape memory alloy and an isotropic medium

Freed¹,

Banks‐Sills²,

Aboudi³

2008

Journal of the Mechanics and Physics of Solids

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Damage suppression in CFRP laminates using embedded shape memory alloy foils

Cited by 9 publications

References 8 publications

Impact damage resistance and damage suppression properties of shape memory alloys in hybrid composites—a review

Impact damage resistance and damage suppression properties of shape memory alloys in hybrid composites—a review

Force-displacement characteristics of simply supported beam laminated with shape memory alloys

On the transformation toughening of a crack along an interface between a shape memory alloy and an isotropic medium

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