scholarly journals A Finite Element Failure Model for Notched Laminated Composites Loaded in Compression

1994 ◽  
Vol 3 (2) ◽  
pp. 096369359400300
Author(s):  
C. Soutis ◽  
R. Tenchev
Keyword(s):  
Experimental Data ◽  
Finite Element ◽  
Compressive Strength ◽  
Stress Analysis ◽  
Uniaxial Compression ◽  
Progressive Damage ◽  
Failure Model ◽  
Damage Growth ◽  
Linear Finite Element ◽  
Element Failure

This paper describes a progressive damage failure model which is making an attempt to predict damage growth and ultimate compressive strength of notched laminates subjected to uniaxial compression. A non-linear finite element programme is developed to perform the ply-by-ply stress analysis and numerical results are compared with existing experimental data [1,2]; the agreement is acceptable.

Identification of critical strains for the random cellular automata finite element failure model based on in-situ tensile test

2019 ◽  
Vol 133 ◽  
pp. 154-164 ◽  
Author(s):  
Konrad Perzynski ◽  
Jiangting Wang ◽  
Krzysztof Radwanski ◽  
Krzysztof Muszka ◽  
Lukasz Madej
Keyword(s):  
Finite Element ◽  
Cellular Automata ◽  
Tensile Test ◽  
Failure Model ◽  
Model Based ◽  
Element Failure ◽  
Critical Strains

Deformation and Stress Analysis of Supported Buttock Contact

1994 ◽  
Vol 208 (1) ◽  
pp. 9-17 ◽  
Author(s):  
P A Dabnichki ◽  
A D Crocombe ◽  
S C Hughes
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Stress ◽  
Contact Problem ◽  
Stress Analysis ◽  
Stress Distributions ◽  
Body Segment ◽  
Element Analysis ◽  
Linear Finite Element ◽  
Support Surfaces

Non-linear finite element analysis has been used to investigate the contact problem between a buttock and a cushion of varying properties. The buttock tissue has been modelled on the macroscale by assuming it to be a hyperelastic (rubber-like) material with properties that correspond to the overall buttock response. Both rigid and flexible cushions have been considered. The contact between the cushion and the buttock has been modelled assuming both friction and friction-free conditions. The effect of these parameters on the buttock-cushion deformation and the tissue compressive and shear stress distributions have been presented. This study forms part of work towards the development of body segment simulators for use in investigations of seating and other support surfaces.

Experiments and Modeling of Failure and Fragmentation of Alumina Cylinders under Uniaxial Compression

2012 ◽  
Vol 13 (1) ◽  
Author(s):  
Yong-Gang Wang ◽  
Jian-Dong Hu ◽  
Feng-Hua Zhou
Keyword(s):  
Experimental Data ◽  
Compressive Strength ◽  
Uniaxial Compression ◽  
High Speed ◽  
Cylindrical Specimen ◽  
Specimen Size ◽  
Fragmentation Model ◽  
High Speed Video ◽  
Axial Splitting

AbstractQuasistatic compressive strength of alumina cylinders was measured using specimen of two sizes. The strength of the material was dependent on the specimen size. High speed video photography showed that the failure of the cylindrical specimen started from axial splitting, and after failure the specimen fragmentized into small pieces. A fragmentation model was proposed for estimating the average sizes of the fragments. The calculated fragment sizes agreed reasonably well with the experimental data. By using Ls-Dyna software, the failure of cylindrical specimen containing pre-existing crack-like flaws had been simulated.

scholarly journals On the Ultimate Compressive Strength of Transversely Cracked Plates

2014 ◽  
Author(s):  
Abbas Bayatfar ◽  
Timothee Pire ◽  
Philippe Rigo
Keyword(s):  
Finite Element ◽  
Compressive Strength ◽  
Steel Plate ◽  
Compressive Loading ◽  
Ultimate Compressive Strength ◽  
Steel Plates ◽  
Transverse Cracking ◽  
Linear Finite Element ◽  
Cracked Plates ◽  
Edge Cracks

This paper aims to numerically analyse the ultimate strength of transversely cracked steel plates under longitudinal compressive loading, considering the effect of initial distortion as well. The main objective of this study is to investigate the ultimate compressive strength characteristics of an unstiffened steel plate due to transverse cracking damages located in the middle (i.e. centre cracks and edge cracks). To achieve that, a series of non-linear finite element (FE) analyses are carried out using ANSYS commercial finite element code. The obtained FE results are discussed to indicate the amount of crack influence, in terms of its length and location, on the ultimate compressive strength of a steel plate element with different thicknesses.

Tests and Numerical Simulation on Short Composite-Sectioned Concrete Filled Steel Tubular Columns Subjected to Axial Compressive Loading

2011 ◽  
Vol 374-377 ◽  
pp. 2265-2270
Author(s):  
Yang Zhang ◽  
Jia Ru Qian ◽  
Xiao Dong Ji ◽  
Wan Lin Cao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Compressive Strength ◽  
Compressive Loading ◽  
Steel Tube ◽  
Test Results ◽  
Element Analysis ◽  
Linear Finite Element ◽  
Axial Compressive Strength ◽  
Good Agreement

In this paper, axial compressive loading test and non-linear finite element analysis of 10 short composite-sectioned concrete filled steel tubular column specimens are introduced. The test results indicate that the failure modes of all the specimens are similar, the specimens have high axial compressive strength and large deformation capacity. The calculated axial compressive strength of the specimens, assuming that the circle steel tube provides the lateral confinement to the core concrete and the square steel tube provides compressive strength without contributing lateral confinement to the concrete, has good agreement with the measured strength. The vertical load-strain curves, the axial compressive strength and the failure mode obtained by the non-linear finite element analysis of specimens have good agreement with the test results.

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