Experimental and numerical investigations of strain rate effects on mechanical properties of LGFRP composite

Duan, Shuyong; Mo, Fuhao; Yang, Xiaoliang; Tao, Yourui; Wu, Deshun; Peng, Yong

doi:10.1016/j.compositesb.2015.11.006

Cited by 35 publications

(19 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stress-strain curves at strain rates from 0.001 s −1 to 0.01 s −1 (low strain rates) could be divided into two stages: elastic deformation and plastic hardening, then directly fracture. The stress-strain curves at the strain rates of 1 s −1 and 10 s −1 (medium strain rates) presented a straight rising process till peak stress followed by abrupt failures, and the tendency was similar to that of the hot-molded continuous GFRT composite (in case of strain rates 0.001 s −1 -50 s −1 , the curves showed more straight rising process until peak stress followed abrupt failures) [22]. The stress-strain curves at strain rates of 100, 200, and 400 s −1 (high strain rates) showed totally different characteristics in comparison with lower strain rate curves.…”

Section: Effect Of Strain Rate On the Mechanical Behaviorssupporting

confidence: 53%

“…The sampling rate of the high-speed camera was set to be 5000, 50,000, 90,000, 120,000, and 135,000 frames per second, respectively. This method had been proved to be an efficient strain recording method for composites [22,[29][30][31][32][33]. The post-processing analysis of all the measurement results was conducted with the DIC professional software (VIC 2D 6, Correlated Solutions Inc., Irmo, SC, USA).…”

Section: Tensile Testing Methodsmentioning

confidence: 99%

“…Since there is not yet a valid standard for the execution of the high-speed tensile tests for polymers or polymer matrix composites, the dimensions of the dynamic tensile specimen (named Type HS) were designed with reference to the ISO 26203-2 and ISO 527-2 norms. The Type HS specimen size was to achieve higher strain rates with the testing machine [1,22,25]. Both of the specimen thicknesses were 4 mm.…”

Section: Specimen Preparationmentioning

confidence: 99%

See 2 more Smart Citations

The Effects of Strain Rates on Mechanical Properties and Failure Behavior of Long Glass Fiber Reinforced Thermoplastic Composites

Cui

Wang

et al. 2019

Polymers

View full text Add to dashboard Cite

Long glass fiber reinforced thermoplastic composites have been increasingly used in automotive parts due to their excellent mechanical properties and recyclability. However, the effects of strain rates on the mechanical properties and failure mechanisms of long glass fiber reinforced polypropylene composites (LGFRPPs) have not been studied systematically. In this study, the effects of strain rates (from 0.001 s−1 to 400 s−1) on the mechanical properties and failure mechanism of LGFRPPs were investigated. The results showed that ultimate strength and fracture strain of the LGFRPPs increased obviously, whereas the stiffness remained essentially unchanged with the strain rates from low to high. The micro-failure modes mainly consisted of fibers pulled out, fiber breakage, interfacial debonding, matrix cracking, and ductile to brittle (ductile pulling of fibrils/micro-fibrils) fracture behavior of the matrix. As the strain rates increased, the interfacial bonding properties of LGFRPPs increased, resulting in a gradual increase of fiber breakage at the fracture surface of the specimen and the gradual decrease of pull-out. In this process, more failure energy was absorbed, thus, the ultimate strength and fracture strain of LGFRPPs were improved.

show abstract

Section: Effect Of Strain Rate On the Mechanical Behaviorssupporting

confidence: 53%

Section: Tensile Testing Methodsmentioning

confidence: 99%

Section: Specimen Preparationmentioning

confidence: 99%

See 1 more Smart Citation

The Effects of Strain Rates on Mechanical Properties and Failure Behavior of Long Glass Fiber Reinforced Thermoplastic Composites

Cui

Wang

et al. 2019

Polymers

View full text Add to dashboard Cite

show abstract

“…The polymer composites are widely used with their advantages of high mechanical strength, good damping properties [4], corrosion resistance [5] and design flexibility instead of conventional materials [6]. Polymer composites compose of filler and polymer matrix like thermoplastic, thermoset and elastomer [7].…”

Section: Introductionmentioning

confidence: 99%

The use of colemanite and ulexite as novel fillers in epoxy composites: Influences on thermal and physico-mechanical properties

Guzel

Sivrikaya

Deveci

2016

Composites Part B: Engineering

View full text Add to dashboard Cite

“…Several previous studies investigated mechanical properties of this LGF/PP composite type. Duan et al investigated effects of strain rate on tensile properties and failure modes of a LGF/PP regarding both experimental tests and finite element simulations. The experimental test results showed that the LGF/PP composite is a strongly strain rate dependent material.…”

Section: Introductionmentioning

confidence: 99%

Coupling investigation on tensile and acoustic absorption properties of lightweight porous LGF/PP composite

Zhang

Yang

et al. 2018

Polymer Composites

Self Cite

View full text Add to dashboard Cite

Long glass fiber‐reinforced polypropylene (LGF/PP) foaming composite has been increasingly used in automotive components regarding its good mechanical and acoustic properties. However, the balance of its mechanical property and acoustic property is far from being understood. The objective of this study is to investigate the influences of molding thickness or foaming degree on both mechanical and acoustic properties of LGF/PP foaming composite by experimental tests. First, LGF/PP foaming composite felts with consistent surface density were fabricated, then specimens with a series of molding thicknesses were prepared by compression molding. Tensile and acoustic tests were conducted and a scanning electron microscopy was also used for analyzing microscopic characteristics. The results indicate that tensile strength and tensile modulus of the present LGF/PP composite decrease in exponential formats, whereas sound absorption coefficients of them increase in logarithmic formats, when molding thickness vary from 1.5 to 8 mm. The above curves intersect around 3 mm. Thus, both mechanical and acoustic properties should be balanced regarding structural size when designing a multi‐purpose vehicle component using the present composite. POLYM. COMPOS., 40:1315–1321, 2019. © 2018 Society of Plastics Engineers

show abstract

Experimental and numerical investigations of strain rate effects on mechanical properties of LGFRP composite

Cited by 35 publications

References 16 publications

The Effects of Strain Rates on Mechanical Properties and Failure Behavior of Long Glass Fiber Reinforced Thermoplastic Composites

The Effects of Strain Rates on Mechanical Properties and Failure Behavior of Long Glass Fiber Reinforced Thermoplastic Composites

The use of colemanite and ulexite as novel fillers in epoxy composites: Influences on thermal and physico-mechanical properties

Coupling investigation on tensile and acoustic absorption properties of lightweight porous LGF/PP composite

Contact Info

Product

Resources

About