scholarly journals Inverse Fiber Reinforced Polymer/Metal-Hybrid Laminates for Structural Lightweight Applications

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1374
Author(s):  
Tomasz Osiecki ◽  
Tristan Timmel ◽  
Marek Jałbrzykowski ◽  
Robert E. Przekop ◽  
Zbigniew Oksiuta
Keyword(s):  
Energy Savings ◽  
Bending Test ◽  
Material System ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Reinforced Plastic ◽  
Hybrid Laminates ◽  
Polymer Metal ◽  
New Material ◽  
Reinforced Thermoplastics

Composite multi-material structures for the automotive industry are another step forward. This is because they contribute to a significant reduction in the weight of structural elements, and thus to energy savings and, consequently, lower emissivity of toxic gases. The paper presents research on a new multi-material system made of fiber-reinforced thermoplastics (FRP) combined with metal elements. To improve the adhesion between the metal insert and the fiber-reinforced plastic, an innovative combination of mechanical fit and adhesive was used. As a result, a targeted use of the excellent mechanical properties of the proposed structure was achieved. Additionally, the proposed method shows advantages in mass production processes of mass-optimized products with high stiffness and load-bearing capacity. The paper presents the results of a new material bending test.

Experimental Testing of Fiber Reinforced Polymer-Concrete Composite Beam

2010 ◽  
Vol 168-170 ◽  
pp. 549-552
Author(s):  
Yan Lei Wang ◽  
Qing Duo Hao ◽  
Jin Ping Ou
Keyword(s):  
Composite Beam ◽  
Experimental Testing ◽  
Coarse Sand ◽  
Fiber Reinforced Polymer ◽  
Bending Test ◽  
Polymer Concrete ◽  
Fiber Reinforced ◽  
Four Point Bending ◽  
Reinforced Polymer ◽  
Box Beam

A new form of fiber reinforced polymer (FRP)-concrete composite beam is proposed in this study. The proposed composite beam consists of a GFRP box beam combined with a thin layer of concrete in the compression zone. The interaction between the GFRP beam and the concrete was obtained by bonding coarse-sand on the top flange of the GFRP beam. One GFRP box beam and one GFRP-concrete composite beam were investigated in four-point bending test. Load-deflection response, mid-span longitudinal strain distributions and interface slip between GFRP beam and the concrete for the proposed composite beam were studied. Following conclusions are drawn from this study: (1) the stiffness and strength of the composite beam has been significantly increased, and the cost-to-stiffness ratio of the composite beam has been drastically reduced comparing with GFRP-only box beam; (2) a good composite action has been achieved between the GFRP beam and the concrete; (3) crushing of concrete in compression defines flexural collapse of the proposed composite beam..

Applied Element Method Simulation of Fiber Reinforced Polymer and Polypropylene Composite Retrofitted Masonry Walls

2014 ◽  
Vol 17 (11) ◽  
pp. 1567-1583 ◽  
Author(s):  
Saleem M. Umair ◽  
Muneyoshi Numada ◽  
Kimiro Meguro
Keyword(s):  
Numerical Model ◽  
Research Work ◽  
Masonry Wall ◽  
Fiber Reinforced Polymer ◽  
Bending Test ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Out Of Plane ◽  
Applied Element Method ◽  
Element Method

In current research work, an attempt is made to simulate the behavior of a newly proposed composite material using 3-D Applied Element Method (AEM). Fiber Reinforced Polymer (FRP) being a strong material provides a significant increase in shear strength. Polypropylene band (PP-band) not only holds the masonry wall system into a single unit but also provides a fairly high deformation capacity at a very low cost of retrofitting. A composite of FRP and PP-band is proposed and applied on the surface of masonry wall. Verification of the proposed numerical model is achieved by conducting experiments on twelve masonry wallets. Out of twelve, six masonry wallets were tested in out of plane bending test and six were tested under in-plane forces in the form of diagonal compression test. Same wallet retrofitting scheme was selected for in-plane and out of plane experiments and all of them were analyzed using proposed 3-D AEM numerical simulation tool. Proposed numerical model has served satisfactory and has shown a fairly good agreement with experimental results which encourages the use of 3D-AEM to numerically simulate the behavior of non-retrofitted and retrofitted masonry wallets.

Sensitivity Study of Material Input Data on FE Forming Results for Wrinkling and Shearing of Fiber Reinforced Thermoplastic Parts

2019 ◽  
Vol 809 ◽  
pp. 500-505
Author(s):  
Bernd Engel ◽  
Jasmin Graef
Keyword(s):  
Input Data ◽  
Test Procedure ◽  
Material Model ◽  
Sensitivity Study ◽  
Bending Test ◽  
Fiber Reinforced ◽  
Forming Process ◽  
Bias Extension ◽  
Reinforced Thermoplastics ◽  
Material Input

This work presents the analysis of the influence of several material input data to the FE results of the forming process of fiber reinforced thermoplastics within a sensitivity study. The *Fabric material model of Abaqus/Explicit is used for the description of the shear, tensile and compression behavior. It is a test-data based model. The bending behavior will be modeled with beam elements. The interaction between input data will be analyzed and its influence onto the FE forming results and FE analysis of material tests like bias-extension-test, compression and bending test with focus on interactions of input data and test procedure itself.

scholarly journals Influence of static long-term loads and cyclic freezing/thawing on the behaviour of concrete beams reinforced with BFRP and HFRP bars

2018 ◽  
Vol 174 ◽  
pp. 04013 ◽  
Author(s):  
Marta Kosior-Kazberuk ◽  
Rafał Wasilczyk
Keyword(s):  
Concrete Beams ◽  
Theoretical Calculations ◽  
Basalt Fiber ◽  
Fiber Reinforced Polymer ◽  
Bending Test ◽  
Fiber Reinforced ◽  
Concrete Element ◽  
Three Point Bending ◽  
Reinforced Polymer ◽  
Metallic Reinforcement

The purpose of this study was to define the influence of static longterm loads and cyclic freezing/thawing on the deflections and cracking of concrete beams with non-metallic reinforcement. The rods made of basalt fiber reinforced polymer (BFRP) and hybrid fiber reinforced polymer (HFRP) were used as non-metallic reinforcement. Four series of single span beams were loaded with a single static force in a three-point bending test, then specimens were subjected to 150 freezing/thawing cycles in a large-size climatic chamber. The experimental test results were compared to those obtained from prior carried out short-term tests and theoretical calculations based on ACI 440:1R-06 standard concerning concrete element with non-metallic reinforcement.

scholarly journals Degradation Behavior of Carbon Fiber Reinforced Plastic (CFRP) in Microwave Irradiation

2007 ◽  
Vol 7 (1 & 2) ◽  
pp. 157
Author(s):  
Nguyen Nguyen ◽  
Phuong Ngoc Diem ◽  
Susan A. Roces ◽  
Florinda T. Bacani ◽  
Masatoshi Kubouchi ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Microwave Irradiation ◽  
Bending Strength ◽  
Bending Test ◽  
Carbon Fiber Reinforced Plastic ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Cfrp Composites ◽  
Reinforced Plastic ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced plastic (CFRP) composites are being used increasingly not only in strengthening structures of civil infrastructures and aerospace or automotive industries but also in many applications such as in medical fields or chemical plants. The present study relates to resin compositions having beneficial physical and mechanical properties, which may include improved resistance to delamination. This study focused on the different behaviors of CFRP composites when subjected to microwave irradiation. Based on the results of the 3-point bending test and SEM images, the delamination tendencies of breaking the CFRP under microwave were discussed. The results can be summarized as follows: (1) CFRP can be degraded under microwave irradiation; (2) two delamination tendency curves of CFRP by microwave irradiation were observed; (3) only the bending strength values of CFRP decreased with increasing microwave power and residence time; and, (4) the degradation of CFRP by microwave was limited.

Analytical modeling for the axial compression performance of steel-fiber-reinforced polymer hybrid laminates

2021 ◽  
pp. 095440622110197
Author(s):  
Jianping Lin ◽  
Ye Lin ◽  
Junying Min ◽  
Hao Teng
Keyword(s):  
Axial Compression ◽  
Analytical Modeling ◽  
Compressive Load ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Compression Performance ◽  
Polymer Hybrid ◽  
Reinforced Polymer ◽  
Compressive Loads ◽  
Hybrid Laminates

Hybrid structures from metal and fiber-reinforced polymer (FRP) hybrid laminates offer an attractive solution to enhance strength and structural stiffness as well as to achieve lightweight effect. The behavior of steel-FRP hybrid laminates subject to axial compression is not well understood due to lack of experimental and analytical investigations. The axial compression performance of steel-FRP hybrid laminates was studied by using axial compression test in this study. Hybrid laminates from DP980-CFRP (carbon fiber-reinforced polymer) and DP980-AFRP (aramid fiber-reinforced polymer) were fabricated and studied. An analytical model was deduced to analyze the maximum axial compressive load of steel-FRP hybrid laminates. The results demonstrate that steel-FRP hybrid laminates exhibit significantly higher maximum compressive loads and initial stiffnesses in axial compression in comparison with the single steel sheet.

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