Evaluation of Self Weight Deflection Property of GFRTP Laminate at Moulding Temperature and Formability Simulation of Diaphragm Forming

2019 ◽  
Vol 827 ◽  
pp. 493-498
Author(s):  
Kazuto Tanaka ◽  
Toshihide Kiyama ◽  
Tsutao Katayama
Keyword(s):  
Tensile Properties ◽  
Bending Stiffness ◽  
Simulation Software ◽  
Resin Matrix ◽  
Thermoplastic Resin ◽  
Automotive Parts ◽  
Glass Fibre Reinforced ◽  
Deflection Test ◽  
Reinforced Thermoplastics ◽  
Cae Technology

The application of Glass Fibre Reinforced Thermoplastics (GFRTP) is expected to reduce the weight of automobiles. In order to use GFRTP for automotive parts, it is essential to apply Computer Aided Engineering (CAE) technology. Until now, prepreg sheets with thermosetting resin matrix are assumed to be used for materials in simulation software. When FRTP is applied for materials in simulation software, it is required to grasp the characteristics of FRTP under moulding temperature. In our previous study, a system capable of evaluating the tensile properties of FRTP laminates at moulding temperatures had been developed and their tensile properties had been evaluated. Bending stiffness under moulding temperature is also required for simulation software. While bending stiffness can be determined using Young's modulus for isotropic materials, thermoplastic prepregs have large anisotropy, especially at moulding temperature. In this study, a system that enables self-weight deflection test of thermoplastic resin laminate under moulding temperature was developed and self-weight deflection characteristics of plain weave GFRTP were evaluated. The analysed results in which the bending stiffness under the moulding temperature of GFRTP was taken into account, gave the most suitable results to the experimental results.

Rigidity and Damage Evolution of Long Fibre Reinforced Polypropylene Made by Direct Processing Route (LFT-D)

2017 ◽  
Vol 742 ◽  
pp. 3-8
Author(s):  
Kay André Weidenmann ◽  
Stefan Dietrich ◽  
Manfred Grigo ◽  
Peter Elsner
Keyword(s):  
Damage Evolution ◽  
Tensile Tests ◽  
High Ratio ◽  
Elastic Response ◽  
Processing Route ◽  
Reinforced Polymers ◽  
Automotive Parts ◽  
Glass Fibre Reinforced ◽  
Direct Processing ◽  
Reinforced Thermoplastics

In order to reduce fuel consumption due to environmental aspects, weight of automotive components has to be reduced. Fibre reinforced polymers have high potential to contribute to this aim as they feature a high ratio of stiffness to weight. The direct processing route for long fibre reinforced polymers is a potential process for the net shape series production of automotive parts. To retain safety and comfort, the material properties of polymers processed in such a way have to be investi-gated thoroughly implementing a deeper understanding of elastic response and damage mechanisms. This work deals with glass fibre reinforced polypropylene manufactured by a direct LFT processing route (D-LFT). After introducing basic properties, studies to determine damage evolution are presented. In this regard, the decrease of stiffness with increasing strain was analyzed using tensile tests featuring loading-unloading cycles. The materials properties have been correlated to fibre orientation measurements from X-ray computed tomography. The stiffness decrease is compared to stiffness measurements carried out by ultrasonic phase spectroscopy (UPS) tests, carried out on juvenile, undamaged specimens. This method is used in this study for the first time to describe the elastic properties of long fibre reinforced thermoplastics.

KAISER ALUMINUM ALLOY 6262

Alloy Digest ◽  
1999 ◽  
Vol 48 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Kaiser Aluminum ◽  
Automotive Parts

Abstract Kaiser Aluminum alloy 6262 (Tennalum alloy 6262) is an Al-Mg-Si-Cu-Cr-Pb-Bi alloy with characteristic good machinability and corrosion resistance and a good acceptance of coatings (anodize response). It is typically used in automotive parts, fittings, building hardware, and valve components. This datasheet provides information on composition, physical properties, tensile properties, and shear strength as well as fatigue. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: AL-361. Producer or source: Tennalum, A Division of Kaiser Aluminum.

scholarly journals Free-Volume and Tensile Properties of Glass Fibre Reinforced Polyamide~6 Composites

2017 ◽  
Vol 132 (5) ◽  
pp. 1501-1505
Author(s):  
E. Dryzek ◽  
M. Wróbel ◽  
E. Juszyńska-Gałązka
Keyword(s):  
Tensile Properties ◽  
Free Volume ◽  
Glass Fibre ◽  
Polyamide 6 ◽  
Glass Fibre Reinforced

scholarly journals Fatigue behaviour of open-hole samples and automotive mini-structures made of woven glass-fibre-reinforced polyamide 6,6

2018 ◽  
Vol 165 ◽  
pp. 07007
Author(s):  
Amélie Malpot ◽  
Fabienne Touchard ◽  
Sébastien Bergamo ◽  
Catherine Peyrac ◽  
Richard Montaudon ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Fatigue Behaviour ◽  
Fatigue Tests ◽  
Thermoplastic Composite ◽  
Semiempirical Model ◽  
Open Hole ◽  
Automotive Parts ◽  
Glass Fibre Reinforced ◽  
Semi Empirical ◽  
Non Destructive

In the automotive industry, the integration of thermoplastic composite components represents a high-potential solution to the mass reduction challenge. In this study, a woven glassfibre-reinforced composite with a polyamide 6,6 matrix is considered for the purpose of being integrated into automotive parts. Tension-tension fatigue tests were conducted on [(0/90)3] openhole samples. These tests were instrumented with non-destructive techniques, namely acoustic emission and infrared thermography. Acoustic emission results showed fibre-matrix debonding and fibre breakages in open-hole samples, located around the hole. Furthermore, 3-point bending fatigue tests were performed on “omega” mini-structures. A semi-empirical model was used in order to predict the fatigue lives of both open-hole coupons and automotive mini-structures. Predictions of the model for open-holes samples underestimate experimental fatigue lives. Nevertheless, the semiempirical model showed good results for the fatigue life prediction of composite mini-structures.

Effect of Press Condition on the Mechanical Properties of GFRTP Molded by the Melted Thermoplastic-Resin Transfer Molding

2018 ◽  
Vol 774 ◽  
pp. 367-372
Author(s):  
Kazuto Tanaka ◽  
Akihiro Hirata ◽  
Tsutao Katayama
Keyword(s):  
Mechanical Properties ◽  
Shell Structure ◽  
Low Cost ◽  
Resin Transfer Molding ◽  
Outer Shell ◽  
Fiber Reinforced ◽  
Thermoplastic Resin ◽  
Transfer Molding ◽  
Reinforced Thermoplastics ◽  
Fiber Reinforced Thermoplastics

The application of Fiber Reinforced Thermoplastics (FRTP) is expected to reduce the weight of automobiles. The press and injection hybrid molding method was developed to mold FRTP with high strength and high stiffness by giving complicated shapes such as ribs and bosses to the outer shell structure of FRTP with continuous fiber. However, as this method uses high-cost FRTP laminated sheets, it is necessary to develop a low-cost FRTP manufacturing process. In this study, we aim at the development of Melted Thermoplastic-Resin Transfer Molding (MT-RTM) to mold FRTP with complicated shape at low cost by injecting melted short fiber reinforced thermoplastics into dry fabric. The effects of press condition on the mechanical properties of GFRTP molded by MT-RTM were clarified by bending tests. GFRTP molded at high mold temperature and high closing speed showed high mechanical properties because of good impregnation of injection resin into continuous fabric in the outer shell structure.

Study on the FRP Tendons in Acid Erosion Test of the Durability

2013 ◽  
Vol 706-708 ◽  
pp. 571-574
Author(s):  
Yun Feng Zhang ◽  
Fei Fei Han ◽  
De Wang Zhao ◽  
Shuai Shao
Keyword(s):  
Resin Matrix ◽  
Corrosion Mechanism ◽  
Reinforcement Corrosion ◽  
Fiber Reinforced ◽  
Thermoplastic Resin ◽  
Durability Test ◽  
Chemical Corrosion ◽  
Corrosive Effect ◽  
Resin Matrix Composite ◽  
Frp Bars

Abstract：In this paper,HCI solution in the chemical corrosion tests carried out in room temperature,measured mass loss of CFRP tendons. After extraction and analysis, preliminary search the FRP reinforcement corrosion mechanism under acid erosion. The tensile test is done at 60d and 120d,respectively. Determination of the tensile strength of CFRP tendons. The experimental analysis of the data collected, identify the law of CFRP reinforcement corrosion. Fiber reinforced composite material (Fiber Reinforced Polymer, of FRP ) is a continuous non-metallic fibers and fabric reinforced thermosetting or thermoplastic resin matrix composite made of a new material . Fibers and resin matrix composed of FRP bars under normal circumstances is not easy to rust, but in recent years, the study found that acid salt , moisture , UV , temperature and other environmental conditions on the long-term performance of FRP bars have a certain impact[3-5]. By CFRP tendons under acidic corrosion durability test study reveals CFRP tendons under the corrosive effect of the variation of the quality and strength . Can provide a theoretical basis for CFRP tendons durability design , to provide theoretical guidance to improve the efficiency of the FRP bars in harsh conditions .

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