Mechanical characteristics, constitutive models and fracture behaviors of short basalt fiber reinforced thermoplastic composites under varying strain rates

Wang, Shaoluo; Yao, Yuanheng; Tang, Chunhong; Li, Guangyao; Cui, Junjia

doi:10.1016/j.compositesb.2021.108933

Cited by 32 publications

(13 citation statements)

References 57 publications

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“…Under the action of compression, the epoxy matrix will undergo plastic deformation and strain hardening, and the molecular structure will be reorganized. 35 At quasi-static rates, owing to the resin matrix having a high degree of ductility during deformation, the composites have enough time to distribute the loads, then undergo a steady stress increase and damage accumulation. The shear zone fractures suddenly when the compressive stress exceeds the load carrying limit, while at high strain rates, the composites do not have enough time to distribute the loads.…”

Section: Resultsmentioning

confidence: 99%

Compressive behaviors of thermo-oxidative aged three-dimensional angle-interlock woven composites under different strain rates

Long

Sun

et al. 2022

Textile Research Journal

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The mechanical behaviors of three-dimensional angle-interlock woven composites (3DAWCs) after thermo-oxidative aging under different strain rates are imperative to retain safety in high-temperature conditions. This work presents the thermo-oxidative aging effects on strain rate sensitivity and compression failure mechanism of 3DAWCs based on the digital image correlation technique and finite element analysis. The results revealed that the compressive modulus and maximum stress of the 3DAWCs are strain rate sensitive, while the thermo-oxidative aging would reduce the strain rate sensitivity. The strain rate coefficient of the resin and composite decreased by approximately 9% and 25% after thermo-oxidative aging, respectively. The compressive damage failure modes of the 3DAWCs mainly include resin cracks, interfacial debonding, and yarn fracture. The strain rate has effects on damage initiation and brittle-ductile fracture behavior. The aging effect changes the crack propagation path, but does not affect the inclined 45° shear mode. In addition, the strain rate effects on strain localization were found and will be enhanced after thermo-oxidative aging.

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Section: Resultsmentioning

confidence: 99%

Compressive behaviors of thermo-oxidative aged three-dimensional angle-interlock woven composites under different strain rates

Long

Sun

et al. 2022

Textile Research Journal

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“…12,13 With increasing the strain rate, the yield stress of resin increases, 14 accompanied with the plateau stress 15 and the dynamic compressive strength 16 of the composite increases. A positive linear relationship between strength and strain rate 17 or logarithmic strain rate 18 has been found. The modulus of composites also changes under different strain-rate loads.…”

mentioning

confidence: 81%

“…30 The deformation primarily concentrates near the fracture crack and the location of possible failure. 18 The increased interfacial bonding strength due to high strain-rate load results in increased fiber breakages and decreased fiber pull-out. 31,32 With the increase of strain rate, longer and deeper cracks are formed along the braiding path 33 and more fibers are crushed into fragments.…”

mentioning

confidence: 99%

Damage evolution and failure mechanism of three-dimensional braided composite subjected to varied high strain-rate loadings

Gao

Zhang

Siddique

et al. 2022

Textile Research Journal

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Three-dimensional (3D) braided composite exhibit the excellent integrity of a braided structure, which gives the composites the advantages of high-impact damage tolerance, excellent delamination resistance, and high fatigue resistance. They have been widely used in the fields of aerospace and transport. Composites are always subjected to high strain-rate loading in these application cases. Braided composites show significantly different damage evolution under varied high strain-rate loadings. A bridge which can connect the strain rate variation to the different damage evolution of composites is urgently needed for composite strength design. This research demonstrated how the strain rate variation induced the change of damage evolution and failure mode of 3D braided composite. A high-speed camera system was used to capture damage process information. A micro-scale rate-dependent finite-element model (FEM) was established to study the underlying mechanisms. The results show that the velocity gap between yarns and resin becomes more obvious at higher strain-rate loading. Damage morphology of composites under lower strain rate resulted from the higher transverse stress at the output-bar area. Higher strain-rate loading induces plastic deformation, which occurs earlier in composites. The deformation distributes more haphazardly under higher strain-rate loading. Optimizing suggestions are given to improve the impact resistance of 3D braided composites.

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“…Although many studies have focused on mechanical properties [ 2–11 ] fatigue [ 12–18 ] and damage [ 19–30 ] of ROS composites to some extents, theoretical analysis of their creep behaviors has gained less attention in open literature. Park and Balatinecz [ 31 ] studied empirically the short‐term creep of wood‐fiber reinforced PE composites.…”

Section: Introductionmentioning

confidence: 99%

“…The increasing demand in various markets for presenting reliable and competitive products necessitate proper understanding of mechanical behaviors of ROS composites from various viewpoints. [1] Although many studies have focused on mechanical properties [2][3][4][5][6][7][8][9][10][11] fatigue [12][13][14][15][16][17][18] and damage [19][20][21][22][23][24][25][26][27][28][29][30] of ROS composites to some extents, theoretical analysis of their creep behaviors has gained less attention in open literature. Park and Balatinecz [31] studied empirically the short-term creep of wood-fiber reinforced PE composites.…”

Section: Introductionmentioning

confidence: 99%

A micro‐macromechanical approach for analyzing creep in randomly oriented short fiber composites

Rafiee

Ghamarzadeh

2023

Polymer Composites

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The main purpose of this research is to develop a model investigating creep phenomenon in polymeric composites reinforced with randomly oriented short fibers. The creep phenomenon is first analyzed in a representative volume element of a long‐fiber composites at the scale of micro through an implicit approach. Then, creep analysis is performed at laminate level as the macro‐scale analysis. Then, creep response of a quasi‐isotropic laminate is obtained where the outputs of the micro‐scale analysis are fed as input data to the macro‐scale modeling. Laminate analogy is properly integrated with creep modeling technique to obtain the creep behavior of randomly oriented short fiber composites. The results of modeling are compared with published experimental data revealing the proper performance of the developed modeling for both short‐term and long‐term creep phenomena.

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Mechanical characteristics, constitutive models and fracture behaviors of short basalt fiber reinforced thermoplastic composites under varying strain rates

Cited by 32 publications

References 57 publications

Compressive behaviors of thermo-oxidative aged three-dimensional angle-interlock woven composites under different strain rates

Compressive behaviors of thermo-oxidative aged three-dimensional angle-interlock woven composites under different strain rates

Damage evolution and failure mechanism of three-dimensional braided composite subjected to varied high strain-rate loadings

A micro‐macromechanical approach for analyzing creep in randomly oriented short fiber composites

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