Low‐velocity impact behavior of a carbon/bismaleimide composite proposed for supersonic flight simulation after hygrothermal cycling

Wang, Shaoquan; Gao, Yu; Wang, Baichen; Qi, Yu; Ozbakkaloglu, Togay

doi:10.1002/pc.25092

Cited by 5 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon/matrix composites have a high specific strength, specific stiffness, corrosion resistance and fatigue resistance. 1,2 These kinds of materials are used in aviation, spaceflight, auto industry, ship industry, architecture, energy science and technology, and so on. 3,4 Nowadays, Bismaleimide (BMI) is regarded as a preferred matrix for advanced carbon fiber reinforced composites applied in the next generation of air-superiority fighters.…”

Section: Introductionmentioning

confidence: 99%

Characterization on fatigue behavior and damage mechanism of C/BMI composites experienced thermal cycling

Gao

et al. 2023

Journal of Composite Materials

View full text Add to dashboard Cite

The multi-directional laminate CCF800H/AC631 bismaleimide composite material was exposed for a long time under the thermal-cycling environment (−60°C ∼+180°C), and the mass loss rate, FTIR spectra, DMA, tensile strength were tested. The fatigue stress level was determined according to the tensile strength and the fatigue performance of the before and after the thermal-cycling environment was tested. Macroscopic visual inspection and ultrasonic C-scan were used to characterize and analyze the fatigue damage of composite materials. The results show that with the increase in the number of thermal cycles, the mass loss of the composite material started with increased rapidly and then basically flat. The C/BMI composites underwent obvious thermal oxygen aging. After thermal-cycling, it would lead to changes in dynamic mechanical properties by a certain degree of post-curing, physical aging, and local interface debonding in composite materials. With the thermal cycles increased the composite material tensile strength first increased slightly and then decreased rapidly. After 300 thermal cycles, the composite materials occurred slightly damaged, and the fatigue life was apparently reduced compared with the original state. The fatigue failure modes of composite materials are mainly fiber fracture and multi-directional laminate delamination. At high stress levels, the stiffness of the specimen after thermal-cycling are lower decrease compared with original specimens, more stress levels would lead to more II stage rate of stiffness decline, and stiffness degradation curve and hysteretic energy recovery curve had enough effect to characterize damage effect of material environment induced by thermal-cycling environment factors.

show abstract

Section: Introductionmentioning

confidence: 99%

Characterization on fatigue behavior and damage mechanism of C/BMI composites experienced thermal cycling

Gao

et al. 2023

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

An organic‐soluble bismaleimide‐grafted aminated para‐polyamide for the molecular reinforcement of bismaleimide/diallyl bisphenol A resin and its carbon fiber composites

Liu,

Yu,

Zhang

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

Poly(p‐phenylene terephthamide) (PPTA) is an aromatic para‐polyamide with a rigid rod‐like main chain and superior intrinsic mechanical properties but is insoluble in all organic solvents. It has been demonstrated that introducing amino groups to the phenyl rings on the PPTA main chain yields organic‐soluble aminated para‐polyamide known as poly(p‐aminophenylene aminoterephthalamide) ((NH2)2‐PPTA). In this study, an organic‐soluble bismaleimide (BMI)‐grafted (NH2)2‐PPTA (BMI‐g‐(NH2)2‐PPTA) was synthesized by reacting the amino groups of (NH2)2‐PPTA with the double bonds of BMI via Michael addition reaction. BMI‐g‐(NH2)2‐PPTA was then employed as a new macromolecular reinforcing agent that significantly enhances the mechanical properties of BMI/2,2′‐diallyl bisphenol A (BD) resin. With the addition of merely 0.5 wt% of BMI‐g‐(NH2)2‐PPTA, the strength and toughness of both BD resin and BD/carbon fiber (CF) composite laminates are significantly improved without decreasing the heat resistance of the matrix. The uniform dispersion of BMI‐g‐(NH2)2‐PPTA in BD resin and its strong interaction with the matrix result in a more significant enhancement in the mechanical properties compared to directly incorporating (NH2)2‐PPTA into the matrix, providing a new and efficient method for enhancing the mechanical properties of BD resin and its CF composites.Highlights A novel BMI‐grafted aminated para‐polyamide, BMI‐g‐(NH2)2‐PPTA, is synthesized. BMI‐g‐(NH2)2‐PPTA is organic‐soluble and can disperse uniformly in BD resin. BMI‐g‐(NH2)2‐PPTA at 0.5 wt% enhances the strength of BD resin by 50.8%. BMI‐g‐(NH2)2‐PPTA is more efficient than (NH2)2‐PPTA in strengthening BD resin. Mechanical properties of BD/CF laminates are also enhanced by BMI‐g‐(NH2)2‐PPTA.

show abstract

Structure Bridge Span of Polymer Composite Materials

Stroikov¹,

Biryukov

Ermoshin

et al. 2021

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Low‐velocity impact behavior of a carbon/bismaleimide composite proposed for supersonic flight simulation after hygrothermal cycling

Cited by 5 publications

References 38 publications

Characterization on fatigue behavior and damage mechanism of C/BMI composites experienced thermal cycling

Characterization on fatigue behavior and damage mechanism of C/BMI composites experienced thermal cycling

An organic‐soluble bismaleimide‐grafted aminated para‐polyamide for the molecular reinforcement of bismaleimide/diallyl bisphenol A resin and its carbon fiber composites

Structure Bridge Span of Polymer Composite Materials

Contact Info

Product

Resources

About