Supported Punch Shear Behaviour of Polycarbonate: Test, Analysis and Numerical Simulation

2019 ◽  
Author(s):  
Yunfa Zhang ◽  
Qi Yang ◽  
Richard Desnoyers ◽  
Andrew Johnston
Keyword(s):  
Numerical Simulation ◽  
Shear Behaviour ◽  
Test Analysis

Test Analysis of MSD Crack Propagation Structure in 2524-T3 Aluminium Alloy

2014 ◽  
Vol 574 ◽  
pp. 386-390
Author(s):  
Jian Ping Zhang ◽  
Xiao Ling Zheng
Keyword(s):  
Numerical Simulation ◽  
Crack Propagation ◽  
Aluminium Alloy ◽  
Crack Growth ◽  
Growth Parameters ◽  
Interactive Effects ◽  
Aviation Industry ◽  
Test Analysis ◽  
Finite Element Software ◽  
Fast Prediction

The MSD phenomenon is an active research topic of the academic and the aviation industry. This paper puts emphasis on the multi-crack propagation with interactive effects of MSD structure in 2524-T3 aluminium alloy. Material tests were accomplished for the crack growth parameters. The multi-crack propagation tests were conducted on specimens containing 5-similar-details, and the corresponding fatigue crack growth analysis with a fast prediction of crack growth life method were accomplished with finite element software. The comparison of crack tip position vs. load cycling from the test and the numerical simulation shows that the numerical simulation can give a good agreement to the experiment result.

scholarly journals Numerical Simulation of Shear Behaviour of Non- Persistent Joints under Low and High Normal Loads

2016 ◽  
Vol 60 (4) ◽  
pp. 517-529 ◽  
Author(s):  
Vahab Sarfarazi ◽  
◽  
Abdolhadi Ghazvinian ◽  
Wulf Schubert ◽  
◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Shear Behaviour

scholarly journals Experimental Research on 2 : 1 Parametric Vibration of Stay Cable Model under Support Excitation

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Li-Na Zhang ◽  
Feng-Chen Li ◽  
Xiang Yu ◽  
Peng-Fei Cui ◽  
Xiao-Yong Wang
Keyword(s):  
Numerical Simulation ◽  
Experimental Research ◽  
Excitation Frequency ◽  
Parametric Vibration ◽  
Vibration Test ◽  
Test Model ◽  
Stay Cable ◽  
Test Analysis ◽  
Support Excitation ◽  
Bridge Bearing

For 2 : 1 parametric vibration problem of stay cable under support excitation, a sliding support only in the vertical moving is designed to simulate the bridge stay cable’s vibration test model. Meanwhile, using numerical simulation of cable free vibration and dynamic characteristic test analysis, the experimental research under various conditions is implemented in the actual cable-stayed bridge as the research object, which is compared with the corresponding numerical simulation results. According to the analysis results, it shows that as the vibration test model has 2 : 1 parametric vibration under the support excitation the results of maximum cable displacement from experimental analysis and numerical simulation are basically consistent which revealed that the parametric vibration of stay cable exists and is easy to occur. Additionally, when the bridge bearing excitation frequency is similar to the 2 : 1 frequency ratio, small excitation can indeed lead to the sharp “beat” vibration of cable; therefore it is very necessary to limit the amplitude of support excitation to prevent the occurrence of a large main parametric resonance.

Thinking on the Progressive Failure Analysis of the Slope

2014 ◽  
Vol 974 ◽  
pp. 293-297
Author(s):  
Xiao Ping Wang ◽  
Xiong Xia ◽  
Kun Hu ◽  
Jin Cai Feng
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Failure Analysis ◽  
Progressive Failure ◽  
Limit Equilibrium ◽  
Equilibrium Analysis ◽  
Challenging Problem ◽  
Test Analysis ◽  
Limit Equilibrium Analysis ◽  
Progressive Failure Analysis

The progressive failure study of the slope is a challenging problem. There exist a lot of problems at present in this area, it’s necessary to do some summaries. This paper did some analysis and discussion from four aspects: limit equilibrium analysis of the slope progressive failure; test analysis of the slope progressive failure, numerical simulation of the slope progressive failure and limit equilibrium analysis on the basis of finite element, and provided some reference for slope progressive failure study.

scholarly journals Numerical Simulation on the specimen dynamic plastic deformation behaviour in the torsional split Hopkinson bar test

2018 ◽  
Vol 183 ◽  
pp. 01020
Author(s):  
Chen Gang ◽  
Huang Xicheng ◽  
Chen Junhong ◽  
Zhong Weizhou
Keyword(s):  
Numerical Simulation ◽  
High Strain ◽  
Hopkinson Bar ◽  
Experimental Results ◽  
Shear Behaviour ◽  
Strain Rates ◽  
Dynamic Shear ◽  
Split Hopkinson ◽  
Strain Stress ◽  
Strain Signal

The torsional split Hopkinson bar (SHB) is an important method to study the dynamic shear behaviour and shear localization of materials under high strain rates. Different specimen sizes were used in literatures, and the size of the specimen might have an effect on the experimental results. Numerical simulation on torsional SHB tests was carried out with LS-DYNA. The strain signal on the incident and transmitted bars were obtained from the simulation just as the experiment. Then the numerical strain-stress relationship of the material was derived from the numerical strain signal using the experiments data process of torsional SHB. The agreement between numerically derived strain-stress results and the specimen material properties specified in numerical modelling indicates that the torsional SHB is applicable to study the dynamic shear behaviour of materials under high strain rates. The specimen gauge diameter has no significant effect on the dynamic torsional test result. However, higher adhesive strength is required to fix the larger gauge diameter specimen on the bars. The specimen gauge thickness has little effect on the experimental results with a modified formula to calculate the specimen stress. Still, the increase of specimen gauge thickness will lead to the increase of non-uniformity of specimen stress and strain (strain rate). Based on the simulation analysis, suggestions on the specimen size design are given as well.

scholarly journals Use of bolted shear connectors in composite construction

2018 ◽  
Author(s):  
Xianghe Dai ◽  
Dennis Lam ◽  
Therese Sheehan ◽  
Jie Yang ◽  
Kan Zhou
Keyword(s):  
Numerical Simulation ◽  
Composite Beam ◽  
Failure Modes ◽  
Numerical Models ◽  
High Strength ◽  
Shear Behaviour ◽  
Composite Construction ◽  
Structural Behaviour ◽  
Shear Connectors ◽  
Shear Connection

Composite beam incorporated steel profiled decking has been extensively used for multi-storey buildings and is now one of the most efficient and economic form of flooring systems. However, the current composite flooring system is not demountable and would require extensive cutting on site during demolition, and the opportunity to reuse the steel components is lost even though these components could be salvaged and recycled. This paper presents the use of high strength bolts as shear connectors in composite construction, the shear behaviour and failure modes were observed and analysed through a series of push-off tests and numerical simulation. The results highlighted the structural behaviour of three different demountable shear connection forms in which continuous slabs or un-continuous slabs were used. Numerical models were validated against experimental observation. Both experimental and numerical results support the high strength bolts used as demountable shear connectors and lead to a better understanding to the behaviour of this form of shear connectors.

Sign in / Sign up

Export Citation Format

Share Document