Experiment Study of Thermoforming of Plain Woven Composite (Carbon/Thermoplastics)

2013 ◽  
Vol 554-557 ◽  
pp. 507-511
Author(s):  
Hong Ling Yin ◽  
Xiong Qi Peng ◽  
Tong Liang Du ◽  
Jun Chen

By combining carbon woven fabric with thermoplastics grains, a thermo-stamping process is proposed for forming parts with complex double curvatures in one step, to implement the affordable application of fiber reinforced composites in high volume merchandises such as automotive industry. In the proposed thermo-stamping process, laminated carbon woven fabrics with thermoplastic grains are heated, and then transferred rapidly to a preheated mould for thermo-stamping, and cooled down to form the carbon fiber reinforced composite part. Various thermoplastics such as PP, PA6 and ABS are used as matrix material in the composite part. Experimental results including shear angle distribution in the fabric, deformed boundary profile of fabric with different original fiber orientation and forming defects are presented. It is demonstrated that high quality parts can be obtained with the proposed forming process, and defects are controllable. By using the proposed process and laminated structures, it is feasible to implement the high-volume and low-cost manufacturing of fiber reinforced composite parts.

2020 ◽  
pp. 152808372093957
Author(s):  
Chandrasekaran Paramasivam ◽  
Rameshbabu Venugopal

The main focus of automotive industry is on developing and applying new materials and technologies for enhancing the comfort and security levels in the vehicles. To fulfill this requirement high strength and high modulus fiber reinforced composite structures play an important role in the automotive industry. The novelty in this research work is that the composite panel made by 2 D woven fabrics by using Glass and Basalt fabric material composite structure by suitable incorporation of panel design which enhanced the mechanical properties. The blend proportion of Glass and Basalt fabric reinforcement was 100% Glass, 100% Basalt and 50:50 Glass/Basalt fabrics. Hand lay-up process was adopted to fabricate the composite panels. Different sets of panel were produce by varying the curing time, pressure. The resultant panels were analyzed for the mechanical properties such as Tensile strength, Flexural strength and Impact strength tests. From the analysis of results the panel made by using 100% Basalt fabric with 20 bar pressure and 15 minutes curing time showed a better tensile strength of 95 MPa, flexural strength of 29.91 MPa and impact strength of 12.50 MPa. Similarly, the results of 50:50 Glass/Basalt fibre with 30 bar pressure and 15 minutes curing time showed a better tensile strength of 94.83 MPa, flexural strength of 29.51 MPa and impact strength of 12.30 MPa. The outcome of the findings is that the mechanical properties of panel are directly proportional to pressure and time and blend type.


2017 ◽  
Vol 36 (20) ◽  
pp. 1503-1513
Author(s):  
Xujing Yang ◽  
Yanke Wang ◽  
Fuhao Mo ◽  
Kai Wei ◽  
Shuyong Duan

Nesting and compression processes of plain woven fabrics are the most important features in the composites manufacture of fiber-reinforced composite components, while their relationships are still not reported. Here, in this work, we clearly reveal nesting and compression characteristics of typical fabrics through systematical compression experiments. We present the theoretical expression of the nesting effects on the initial thickness h and experimentally demonstrate its effectiveness. We find that nesting decreases the h and the minimum h appears in the maximum nesting condition. Meanwhile, we experimentally demonstrate that for plain woven fabrics, nesting has relationships with the thickness in compression t, while it has no effects on the thickness deformation Δ in the whole compression processes. Thus, we reveal the relationships between the nesting and h, t, Δ in the compression processes. Moreover, the applicability of these results for other types of fiber is also illustrated by comprehensive analysis. These obtained results provide the references for thickness evolution rules, volume fraction, and molding process of the fiber-reinforced composite components.


2010 ◽  
Vol 38 (4) ◽  
pp. 286-307
Author(s):  
Carey F. Childers

Abstract Tires are fabricated using single ply fiber reinforced composite materials, which consist of a set of aligned stiff fibers of steel material embedded in a softer matrix of rubber material. The main goal is to develop a mathematical model to determine the local stress and strain fields for this isotropic fiber and matrix separated by a linearly graded transition zone. This model will then yield expressions for the internal stress and strain fields surrounding a single fiber. The fields will be obtained when radial, axial, and shear loads are applied. The composite is then homogenized to determine its effective mechanical properties—elastic moduli, Poisson ratios, and shear moduli. The model allows for analysis of how composites interact in order to design composites which gain full advantage of their properties.


2018 ◽  
Author(s):  
Karla Rosa Reyes ◽  
Karla Rosa Reyes ◽  
Adriana Pavia Sanders ◽  
Lee Taylor Massey ◽  
Corinne Hagan ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document