Innovative low-cost recycled rubber–fiber reinforced isolator: Experimental tests and Finite Element Analyses

2014 ◽  
Vol 76 ◽  
pp. 99-111 ◽  
Author(s):  
Mariacristina Spizzuoco ◽  
Andrea Calabrese ◽  
Giorgio Serino
Keyword(s):  
Finite Element ◽  
Low Cost ◽  
Experimental Tests ◽  
Finite Element Analyses ◽  
Fiber Reinforced ◽  
Recycled Rubber

A Novel Approach for Designing Boltless Connectors - Example on a New Drilling Riser Connector

2021 ◽  
Author(s):  
Eleonore Roguet ◽  
Emmanuel Persent ◽  
Daniel Averbuch
Keyword(s):  
Finite Element ◽  
Design Process ◽  
Load Transfer ◽  
Design Method ◽  
Experimental Tests ◽  
New Product ◽  
Block Type ◽  
Finite Element Analyses ◽  
Novel Approach ◽  
Structural Tests

Abstract A new method which uses elastic and elasto-plastic Finite Element analyses is developed to design a double breech-block type connector. All relevant criteria proposed by API16F are fulfilled. In addition, plastic and bearing criteria have been added to support the use of lugs for load transfer in the connector. The proposed methodology has been applied and validated through experimental tests at different scales and in particular on laboratory specimens and small-scaled connectors. Based on these last structural tests, a safety factor of almost 8 was obtained for the design method on small-scaled connectors. Prototype tests at scale 1:1 allowed the methodology to be fully validated and a new product to be qualified. Certification bodies validated the whole design process, the employed methodology and the new connector.

Study of bolted joint axial stiffness using finite element analyses, experimental tests, and analytical calculations

2020 ◽  
Vol 234 (23) ◽  
pp. 4671-4681
Author(s):  
Raphael Calazans Cardoso ◽  
Brenno Lima Nascimento ◽  
Felipe de Freitas Thompson ◽  
Sandro Griza
Keyword(s):  
Finite Element ◽  
Analytical Method ◽  
High Reliability ◽  
Experimental Tests ◽  
Bolted Joints ◽  
Axial Stiffness ◽  
Bolted Joint ◽  
Finite Element Analyses ◽  
Load Distributions ◽  
Reliable Design

The bolted joints sizing procedures shall adequately match the conditions imposed on the joint in service, to ensure high reliability designs. Therefore, this study aims to analyze the load distributions on the bolt when applying external load on bolted joints. Finite element and extensometry analyses as well as analytical calculations were performed in order to compare the magnitude of the joint overall stiffness, with respect to several available theories. The results acquired through the analytical method prescribed in the VDI 2230 standard as well as the finite element and extensometry analyses obtained great accordance. These results indicate that VDI 2230 standard adequately represents the mechanical behavior of the joint and should be used as a guideline for the reliable design of bolted joints subjected to the loading conditions of the present paper.

Investigations of puncture behaviors of woven fabrics from finite element analyses and experimental tests

2011 ◽  
Vol 81 (10) ◽  
pp. 992-1007 ◽  
Author(s):  
Baozhong Sun ◽  
Yonxin Wang ◽  
Ping Wang ◽  
Hong Hu ◽  
Bohong Gu
Keyword(s):  
Finite Element ◽  
Experimental Tests ◽  
Woven Fabrics ◽  
Finite Element Analyses

Mechanical behavior of pressurized composite pipes made of various materials

2020 ◽  
Vol 62 (4) ◽  
pp. 389-394
Author(s):  
İsmail Yasin Sülü ◽  
Şemsettin Temiz
Keyword(s):  
Finite Element ◽  
Carbon Fiber ◽  
Radial Strain ◽  
Experimental Tests ◽  
Industrial Applications ◽  
Layered Composite ◽  
Finite Element Analyses ◽  
Reinforced Composite ◽  
Failure Loads ◽  
Composite Pipes

Abstract In this study, multi-layered composite pipes with varied orientation angles and subjected to internal pressure were investigated by using the 3-D finite element method (FEM) and through experimental tests. The composite pipes were made of E-glass and T300/934 carbon fiber. The studies were carried out experimentally, analytically and numerically. The T300/934 carbon fiber reinforced composite pipes and E-glass reinforced composite pipes were given numerical model codes via ANSYS 14.5 software. These models were then compared with analytical results in the literature and with the experimental results. Finite element analyses (FEA) were carried out to predict failure loads. Each layer of the composite pipes was numerically examined from various orientation angles. Hoop and shear stress wereobtained numerically for each layer. Radial strain and radial stress were achieved in the radial direction of the composite pipes. Shear extension coupling was considered because the layup angles with + θ and - θ layers were in varied radii. Subsequently, the effects of the orientation angles were examined for all models. Moreover, it was found that an embedded adhesive joint is important for industrial applications.

Seismic assessment of a historical masonry mosque by experimental tests and finite element analyses

2014 ◽  
Vol 19 (1) ◽  
pp. 158-164 ◽  
Author(s):  
Ferit Cakir ◽  
Burcin S. Seker ◽  
Ahmet Durmus ◽  
Adem Dogangun ◽  
Habib Uysal
Keyword(s):  
Finite Element ◽  
Experimental Tests ◽  
Seismic Assessment ◽  
Finite Element Analyses ◽  
Historical Masonry

scholarly journals Analysis of cold-formed steel rectangular hollow flange beams

2021 ◽  
Vol 16 (1) ◽  
pp. 58-64
Author(s):  
Nathalie Eid ◽  
Attila László Joó
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Experimental Tests ◽  
Finite Element Analyses ◽  
Ansys Software ◽  
Current Standard ◽  
Bending Capacity ◽  
Cold Formed Steel ◽  
Thin Walled ◽  
Flange Beams

AbstractThis paper presents the results of a theoretical-numerical study of laterally-restrained thin-walled steel rectangular hollow flange beams subjected to bending, shear and bending and shear interaction. Finite element analyses were carried out by using ANSYS software, and validated by previous experimental tests. Furthermore, the effect of intermediate stiffeners was investigated, where the improvement percentage in bending capacity was 4.4%. Additionally, all the corresponding outcomes were calculated according to EN 1993-1-3. The results showed that current standard rules tend to be somewhat conservative in both bending and bending and shear interaction cases, while they are not quite accurate in shear case.

scholarly journals Vibration Induced by Moving Cranes in High-Tech Buildings due to Rail Pad Materials

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
S. H. Ju ◽  
H. H. Kuo ◽  
S. H. Ni
Keyword(s):  
Finite Element ◽  
Displacement Field ◽  
Degrees Of Freedom ◽  
Laboratory Experiments ◽  
Low Cost ◽  
High Tech ◽  
Full Model ◽  
Finite Element Analyses ◽  
Two Degrees Of Freedom ◽  
Low Stiffness

In this work, an appropriate rail pad is proposed to reduce the vibration induced by moving cranes near the source location in high-tech buildings. Using a simple two-degrees-of-freedom model and laboratory experiments, we found that a low-cost rubber pad is effective to reduce crane-induced vibration. A number of finite element analyses with the full model are then performed for a high-tech factory and a moving crane. The results show that a decrease in the stiffness of the rail pad can decrease crane-induced vibration, and it is obvious that the proposed low-stiffness rubber rail pad with significant damping is an appropriate material to reduce crane-induced vibration by as much as five dB. In addition, the displacement field using the rubber pad is still much smaller than 2 mm, which is the working requirement for moving cranes.

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