Compressive response of glass–fiber reinforced polymeric composites to increasing compressive strain rates

2009 ◽  
Vol 89 (4) ◽  
pp. 517-523 ◽  
Author(s):  
Mahmood M. Shokrieh ◽  
Majid Jamal Omidi
Keyword(s):  
Glass Fiber ◽  
Compressive Strain ◽  
Polymeric Composites ◽  
Strain Rates ◽  
Fiber Reinforced ◽  
Compressive Response ◽  
Glass Fiber Reinforced

Characterization of the Compressive Behavior of Glass Fiber Reinforced Polyurethane Foam at Different Strain Rates

2010 ◽  
Vol 132 (2) ◽  
Author(s):  
Huiyang Luo ◽  
Yanli Zhang ◽  
Bo Wang ◽  
Hongbing Lu
Keyword(s):  
Glass Fiber ◽  
Young’S Modulus ◽  
Polyurethane Foam ◽  
Master Curve ◽  
Young's Modulus ◽  
Superposition Principle ◽  
Strength Increase ◽  
Strain Rates ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced

A glass fiber reinforced polyurethane foam (R-PUF), used for thermal insulation of liquefied natural gas tanks, was characterized to determine its compressive strength, modulus, and relaxation behavior. Compressive tests were conducted at different strain rates, ranging from 10−3 s−1 to 10 s−1 using a servohydraulic material testing system, and from 40 s−1 to 103 s−1 using a long split Hopkinson pressure bar (SHPB) designed for materials with low mechanical impedance such as R-PUF. Results indicate that in general both Young’s modulus and collapse strength increase with the strain rate at both room and cryogenic (−170°C) temperatures. The R-PUF shows a linearly viscoelastic behavior prior to collapse. Based on time-temperature superposition principle, relaxation curves at several temperatures were shifted horizontally to determine Young’s relaxation master curve. The results show that Young’s relaxation modulus decreases with time. The relaxation master curve obtained can be used to convert to Young’s modulus at strain rates up to 103 s−1 following linearly viscoelastic analysis after the specimen size effect has been considered.

Thermo Gravimetric analysis of Vetiveria zizanioides /Jute/Glass fiber reinforced hybrid polymeric composites

2019 ◽  
Vol 18 ◽  
pp. 5317-5326
Author(s):  
G.Ashok Kumar ◽  
J.Sai Revanth ◽  
K.Srividya ◽  
Ch.Mohan Sumanth ◽  
M.Somaiah Chowdary ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Thermo Gravimetric Analysis ◽  
Polymeric Composites ◽  
Gravimetric Analysis ◽  
Fiber Reinforced ◽  
Vetiveria Zizanioides ◽  
Thermo Gravimetric ◽  
Glass Fiber Reinforced

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

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2019 ◽  
Author(s):  
Junjia Cui ◽  
Shaoluo Wang ◽  
Shuhao Wang ◽  
Guangyao Li ◽  
Peilin Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Ultimate Strength ◽  
Fracture Strain ◽  
Thermoplastic Composites ◽  
Strain Rates ◽  
Fiber Breakage ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Long Glass Fiber

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.

An extensive study on strain dependence of glass fiber-reinforced polymer-based composites

2021 ◽  
pp. 030932472110437
Author(s):  
Ashkan Farazin ◽  
Afrasyab Khan
Keyword(s):  
Strain Rate ◽  
Glass Fiber ◽  
Glass Fibers ◽  
Experimental Studies ◽  
Fiber Reinforced Polymer ◽  
Strain Rates ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

Fiber-reinforced polymer-based composites may experience various strain rates under different dynamic loads. As the mechanical behavior of these composites varies with strain rate, their response will be dependent on the strain rate. This paper presents a comprehensive review on glass fibers and composites reinforced with these fibers, as the most practical polymer-based composite, under dynamic loading. First, the properties of long glass fibers under different strain rates will be reviewed in detail. In the following, experimental studies on the effects of strain rate on various types of glass fiber-reinforced polymer-based composites will be categorized and presented. The behavior of thermoset polymers will be also addressed under different strain rates. Finally, various analytical and numerical macromechanical and micromechanical models will be comprehensively described for this type of composites.

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