scholarly journals Inspiration from table tennis racket: Preparation of rubber-wood-bamboo laminated composite (RWBLC) and its response characteristics to cyclic perpendicular compressive load

2020 ◽  
Vol 241 ◽  
pp. 112135
Author(s):  
Jianchao Deng ◽  
Xin Wei ◽  
Haiying Zhou ◽  
Ge Wang ◽  
Shuangbao Zhang
Keyword(s):  
Compressive Load ◽  
Laminated Composite ◽  
Table Tennis ◽  
Tennis Racket ◽  
Response Characteristics ◽  
Rubber Wood

scholarly journals Experimental and Numerical Analyses on the Buckling Characteristics of Woven Flax/Epoxy Laminated Composite Plate under Axial Compression

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 995
Author(s):  
Venkatachalam Gopalan ◽  
Vimalanand Suthenthiraveerappa ◽  
Jefferson Stanley David ◽  
Jeyanthi Subramanian ◽  
A. Raja Annamalai ◽  
...  
Keyword(s):  
Environmental Sustainability ◽  
Composite Plate ◽  
Compressive Load ◽  
Laminated Composite ◽  
Green Composite ◽  
Laminated Composite Plate ◽  
Axial Compressive Load ◽  
Number Of Layers ◽  
Structural Applications ◽  
Ply Orientation

The evolution of a sustainable green composite in various loadbearing structural applications tends to reduce pollution, which in turn enhances environmental sustainability. This work is an attempt to promote a sustainable green composite in buckling loadbearing structural applications. In order to use the green composite in various structural applications, the knowledge on its structural stability is a must. As the structural instability leads to the buckling of the composite structure when it is under an axial compressive load, the work on its buckling characteristics is important. In this work, the buckling characteristics of a woven flax/bio epoxy (WFBE) laminated composite plate are investigated experimentally and numerically when subjected to an axial compressive load. In order to accomplish the optimization study on the buckling characteristics of the composite plate among various structural criterions such as number of layers, the width of the plate and the ply orientation, the optimization tool “response surface methodology” (RSM) is used in this work. The validation of the developed finite element model in Analysis System (ANSYS) version 16 is carried out by comparing the critical buckling loads obtained from the experimental test and numerical simulation for three out of twenty samples. A comparison is then made between the numerical results obtained through ANSYS16 and the results generated using the regression equation. It is concluded that the buckling strength of the composite escalates with the number of layers, the change in width and the ply orientation. It is also noted that the weaving model of the fabric powers the buckling behavior of the composite. This work explores the feasibility of the use of the developed green composite in various buckling loadbearing structural applications. Due to the compromised buckling characteristics of the green composite with the synthetic composite, it has the capability of replacing many synthetic composites, which in turn enhances the sustainability of the environment.

The Wood Composite Materials of Table Tennis Bat and Batting Techniques

2012 ◽  
Vol 583 ◽  
pp. 49-52
Author(s):  
Zhong Hai Wang ◽  
Ru Jian Yuan ◽  
Xiao Bing Fan
Keyword(s):  
Composite Materials ◽  
Material Science ◽  
High Performance ◽  
Technical Innovation ◽  
Wood Composite ◽  
Table Tennis ◽  
Tennis Racket

With the table tennis technical innovation and improvement of science, high-performance materials are used to manufacture of table tennis plate floor and help athletes have achieved better results. This article elaborated the wood composite materials’s impact on batting techniques through the analysis of the function of table tennis racket floor and its structure and capacity based on material science for provide the reference on manufacturing and selecting of table tennis racket.

Baseplate of Table Tennis Racket: Allocation for Material Innovation and Playing Methods

2013 ◽  
Vol 440 ◽  
pp. 325-328
Author(s):  
Ming Liang Yang
Keyword(s):  
Technological Development ◽  
Table Tennis ◽  
Tennis Racket

The table tennis racket has played an important role in the development of promoting the table tennis. This paper will analyze the influence of the change of the racket baseplate on the table tenniss technological development, and various requirements on the performance of the racket baseplate by different table tennis batsmanship, and conclude the mutual promoting and influencing relationship between the materials of the baseplate of table tennis racket and the batsmanship, and then to coordinate the baseplates performance and the technology of the table tennis athletic, and to maximize the techniques and tactics levels of the athletic.

Dynamic Characterization of a Magnetoelectric Cantilever for Actuation and Sensing

2010 ◽  
Author(s):  
Joshua Clarke ◽  
Vishnu Baba Sundaresan
Keyword(s):  
Lead Zirconate Titanate ◽  
Piezoelectric Layer ◽  
Parametric Analysis ◽  
Variational Principles ◽  
Laminated Composite ◽  
Lead Zirconate ◽  
Loop Control ◽  
Response Characteristics ◽  
Magnetoelectric Materials

This article continues our work to develop magnetoelectric materials as self-sensing actuators. Our research is directed at developing a two-segment cantilever device with closed-loop control. The actuator under study is fabricated as a laminated composite of the magnetostrictive material Iron-Gallium (Galfenol) and a Lead-Zirconate-Titanate piezoelectric material (PZT-5H). The mechanical and electrical characteristics of a single-segment cantilever are modeled using the equation of motion developed from variational principles in earlier work and are compared with experimental data from other groups. Additionally, parametric analysis is performed to determine the effect of varying the thickness fraction of the piezoelectric layer on the frequency response characteristics of the actuator. When applied to the dynamic behavior of the actuator, the model predicts behavior that closely resembles experimental results published by other groups. Parametric analysis of the piezoelectric layer thickness fraction indicates that the design of a magnetoelectric cantilever self-sensing actuator can be optimized by varying the thickness fraction.

Evaluation of Mechanical Properties of Paper Tubes

2013 ◽  
Author(s):  
Takanori Kitamura ◽  
Mitsunori Suda ◽  
Kanta Ito ◽  
Suguru Teramura ◽  
Zhiyuan Zhang ◽  
...  
Keyword(s):  
Fracture Behavior ◽  
Compressive Load ◽  
Laminated Composite ◽  
Recycled Paper ◽  
Emergency Operations ◽  
Inherent Anisotropy ◽  
Deformation And Fracture ◽  
Laminated Composite Materials ◽  
Cracks Propagation ◽  
Test Process

Recycled paper is helpful to reduce trash discharge, save resource and cost. Recycled paper tube is one of the most successful cases in application of recycled paper. It is an excellent choice for packing. It’s also used in the construction of temporary structures for both exhibition spaces or for rapid-recovery shelters in emergency operations. As paper tubes are laminated composite materials composited of paperboard which is inherent anisotropy materials, the research on mechanical property and fracture behavior becomes more complicated. In order to analyze deformation and fracture behavior of paper tubes under lateral compressive load, six types of paper tube fabricated with different kinds of paperboard and number of ply were examined in this study. The six types included three different kinds of paperboard. Cracks propagation was observed through lateral compression test process. At the same time, energy absorption in elastic stage was discussed between different paper tubes.

Comparative Analysis on Performance of Table Tennis Racket’s Bottom of Different Materials

2014 ◽  
Vol 687-691 ◽  
pp. 4248-4251
Author(s):  
Mao Yu
Keyword(s):  
Comparative Analysis ◽  
Table Tennis ◽  
Tennis Players ◽  
Tennis Racket ◽  
The Relationship

This paper analyzed the type of the material of the racket, as well as the relationship between distribution and the performance of the bottom of the racket, therefore, people can classify it according to the technical style, then matching table tennis racket with different table tennis players ideally, coordinating the performance of the bottom of the racket with the technical style of the table tennis players, so as to maximize the level of the technique and tactics of the athletes as much as possible.

scholarly journals Post-Buckling Behaviour of laminated Cylindrical Panels with/without Cut-Outs

2019 ◽  
Vol 8 (3) ◽  
pp. 8026-8030
Keyword(s):  
Compressive Load ◽  
Laminated Composite ◽  
Cylindrical Panel ◽  
Buckling Load ◽  
Equilibrium Path ◽  
Cylindrical Panels ◽  
Post Buckling ◽  
The Impact ◽  
Generalized Finite Element ◽  
Composite Cylindrical Panel

Buckling and post-buckling analysis of isotropic and laminated composite cylindrical plates/panels under compressive load has been done by equilibrium path approach (arc-length technique). The impact of cut outs on buckling and post-buckling load of an isotropic and laminated composite cylindrical plates/panels has been assessed by utilizing summed up generalized finite element programming ANSYS. In post-buckling Eigen mode imperfection shape is picked for creating geometric undulations on cylindrical panels with/without circular cut-outs. The impact of the area and size of the cut out and furthermore the composite utilize point on the buckling load of laminated composite cylindrical panel is explored with simply supported boundary conditions. The post-buckling consequences of laminated cylindrical panels have been validated with existing appropriate writing (18) and are additionally stretched out for analysis of sheets/plates with cutouts. It has been seen that the as the curvature of the panel increases load bearing capacity is increasing irrespective of the material and with/without cut out.

3D Riveting Process Simulation of Laminated Composites

2007 ◽  
Vol 334-335 ◽  
pp. 405-408 ◽  
Author(s):  
Seung Jo Kim ◽  
Seung Hoon Paik ◽  
Kuk Hyun Ji ◽  
Tae Ho Yoon
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Laminates ◽  
Three Dimensional ◽  
Compressive Load ◽  
Laminated Composite ◽  
Composite Plates ◽  
Element Model ◽  
Interference Fit ◽  
Riveting Process

Laminated composite plates have lower interlaminar strength making it difficult to apply interference-fit rivet joining. In this paper, a three-dimensional finite element model has been developed in order to simulate the riveting process on composite plates. The finite element model is based on continuum elements and accounts for some important mechanisms involved in a whole riveting process. The stresses around the rivet hole and the deformed shapes of the rivet are presented together with the effects of the interference fit and the geometry of the washer when the rivet joints are subjected to the compressive load. The numerical results show the applicability of an interference-fit riveting in composite laminates.

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