Theoretical Prediction and Experimental Research on the Tensile Strength of GF-TPU Composite

2011 ◽  
Vol 217-218 ◽  
pp. 300-305
Author(s):  
Jian Yun He ◽  
Ma Ming ◽  
Ke Jian Wang
Keyword(s):  
Tensile Strength ◽  
Fiber Orientation ◽  
Thermoplastic Polyurethane ◽  
Orientation Distribution ◽  
Prediction Equation ◽  
Matrix Interface ◽  
Test Results ◽  
Fiber Orientation Distribution ◽  
Fiber Matrix Interface ◽  
The Relationship

Based on fiber length, fiber orientation distribution, ratio of length to diameter and fiber-matrix interface, the theoretic prediction equation of tensile strength has been established for glass fiber/thermoplastic polyurethane (GF-TPU) composite. The relationship between the structure and tensile strength of GF-TPU composite was theoretically and experimentally studied. The results showed that the predicted tensile strength fits the test results quite well.

Research on the Elasticity Modulus of Short Glass Fiber / Thermoplastic Polyurethane (SGF-TPU) Composites

2013 ◽  
Vol 561 ◽  
pp. 152-157 ◽  
Author(s):  
Jian Yun He ◽  
Yu Mei Ding ◽  
Zi Chen Xue ◽  
Wei Min Yang
Keyword(s):  
Fiber Length ◽  
Elasticity Modulus ◽  
Volume Fraction ◽  
Thermoplastic Polyurethane ◽  
Orientation Distribution ◽  
Prediction Equation ◽  
Fiber Volume ◽  
Fiber Orientation Distribution ◽  
The Relationship ◽  
Test Result

Based on fiber length, fiber orientation distribution and fraction volume, the Halpin-Tsai’ elasticity modulus prediction equation were modified and the elasticity modulus of SGF/TPU composites was experimentally studied. The relationship between the structure and elasticity modulus of SGF/TPU composites was discussed. Results showed that the elasticity modulus of GF-TPU composite rapidly increased as the increasing of fiber volume fraction () and the increasing of the fiber length at the range of 0%-20%. The modified prediction equation of the elasticity modulus fits the test result quite well.

Effect of Fiber Orientation on the Tensile Strength in Fiber-Reinforced Polymeric Composite Materials

2005 ◽  
Vol 297-300 ◽  
pp. 2897-2902 ◽  
Author(s):  
Jin Woo Kim ◽  
Jung Ju Lee ◽  
Dong Gi Lee
Keyword(s):  
Tensile Strength ◽  
Composite Material ◽  
Fiber Orientation ◽  
Polymeric Composite ◽  
Orientation Distribution ◽  
Fiber Content ◽  
Fiber Reinforced ◽  
Composite Sheet ◽  
Content Ratio ◽  
Fiber Orientation Distribution

The study for strength calculation of one way fiber-reinforced composites and the study measuring precisely fiber orientation distribution were presented. However, because the DB that can predict mechanical properties of composite material and fiber orientation distribution by the fiber content ratio was not constructed, we need the systematic study for that. Therefore, in this study, we investigated what effect the fiber content ratio and fiber orientation distribution have on the strength of composite sheet after making fiber reinforced polymeric composite sheet by changing fiber orientation distribution with the fiber content ratio. The result of this study will become a guide to design data of the most suitable parts design or fiber reinforced polymeric composite sheet that uses the fiber reinforced polymeric composite sheet in industry spot, because it was conducted in terms of developing products. We studied the effect the fiber orientation distribution has on tensile strength of fiber reinforced polymeric composite material and achieved this results below. We can say that the increasing range of the value of fiber reinforced polymeric composite’s tensile strength in the direction of fiber orientation is getting wider as the fiber content ratio increases. It shows that the value of fiber reinforced polymeric composite’s tensile strength in the direction of fiber orientation 90° is similar with the value of polypropylene’s intensity when fiber orientation function is J= 0.7, regardless of the fiber content ratio. Tensile strength of fiber reinforced polymeric composite is affected by the fiber orientation distribution more than by the fiber content ratio.

Effect of Fiber Content and Fiber Orientation on the Tensile Strength in Glass Mat Reinforced Thermoplastic Sheet

2007 ◽  
Vol 334-335 ◽  
pp. 337-340
Author(s):  
Jin Woo Kim ◽  
Dong Gi Lee
Keyword(s):  
Tensile Strength ◽  
Fiber Orientation ◽  
Orientation Distribution ◽  
Fiber Content ◽  
Fiber Reinforced ◽  
Composite Sheet ◽  
Design Data ◽  
Content Ratio ◽  
Fiber Orientation Distribution ◽  
Glass Mat

The study for strength calculation of one way fiber-reinforced composites and the study measuring precisely fiber orientation distribution were presented. Need the systematic study for the DB that can predict mechanical properties of composite material and fiber orientation distribution by the fiber content ratio was not constructed. Therefore, this study investigated what affect the fiber content ratio and fiber orientation distribution have on the strength of composite sheet after making Glass Mat Reinforced Thermoplastic Sheet by changing fiber orientation distribution with the fiber content ratio. The result of this study will become a guide to design data of the most suitable parts design or fiber reinforced polymeric composite sheet that uses the Glass Mat Reinforced Thermoplastic Sheet in industry part, because it was conducted in terms of developing products. It studied the effect the fiber orientation distribution has on tensile strength of Glass Mat Reinforced Thermoplastic Sheet and achieved this result below. The increasing range of the value of Glass Mat Reinforced Thermoplastic Sheet’s tensile strength in the fiber orientation direction is getting wider as the fiber content increases.

Controllable anisotropic properties of wet-laid hydroentangled nonwovens

TAPPI Journal ◽  
2019 ◽  
Vol 18 (3) ◽  
pp. 173-180
Author(s):  
Chao Deng ◽  
Jue Hou ◽  
Xing Zhang ◽  
R. Hugh Gong ◽  
Xiangyu Jin
Keyword(s):  
Tensile Strength ◽  
Fiber Orientation ◽  
Orientation Distribution ◽  
Mechanical Tests ◽  
Anisotropic Properties ◽  
Liquid Spreading ◽  
Fiber Orientation Distribution ◽  
End Use ◽  
Length And Area ◽  
The Web

For nonwovens, fiber orientation distribution is an important structural characteristic that directly influences the anisotropic properties of the materials. Different Vslurry/Vbelt ratios were adopted to fabricate nonwovens during the wet-laid process. The results indicated that fiber orientation distribution of nonwovens can be regulated by adopting different Vslurry/Vbelt ratios owing to the web-forming principle of wet-laid techniques. Mechanical tests showed that both wet and dry tensile strength of nonwovens in different angle directions present anisotropy under different Vslurry/Vbelt ratio parameters. A liquid spreading distribution experiment proved that liquid spreading length and area of nonwovens could be manipulated using different Vslurry/Vbelt ratios in the fabrication process. Therefore, specific anisotropic properties of wet-laid hydroentangled nonwovens can be realized by controlling the process parameters for particular end-use applications.

Size Effect on Mechanical Properties of LVL

2014 ◽  
Vol 887-888 ◽  
pp. 824-829
Author(s):  
Qing Fang Lv ◽  
Ji Hong Qin ◽  
Ran Zhu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Size Effect ◽  
Tensile Test ◽  
Compression Test ◽  
Test Results ◽  
Laminated Veneer Lumber ◽  
Object Of Study ◽  
The Relationship

Laminated veneer lumber is taken as an object of study, and use LVL specimens of different sizes for compression test and tensile test. The goal of the experiment is to investigate the size effect on compressive strength and tensile strength as well as the influence of the secondary glued laminated face, which appears in the secondary molding processes. The results show that both compressive strength and tensile strength have the size effect apparently and the existence of the secondary glued laminated face lower the compressive strength of LVL specimens. Afterwards, the relationship between compressive strength and volume along with tensile strength and area are obtained by the test results.

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