Prediction of tensile failure of stochastic tow-based discontinuous composites via mesoscale finite element analysis

CrossFit® in people with a upper limb disability is a challenge in designing elements for weight lifting above the head due to: fixation, carrying capacity and safety. This paper presents a proposal for the design of a prosthesis prototype for CrossFit® weightlifting practice with wrist disarticulation, based on the product design methodology of Ulrich and Eppinger, including detailed design through Finite Element Analysis (FEA) and tensile failure test in a load system INSTRON® 5582. The results show from the mechanical point of view that the design allows the lifting of loads up to 2000N.Keywords: Prosthesis, upper limb disability, CrossFit®, weightlifting.

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Numerical simulation and experimental study of off-axis tensile performance of triaxial woven fabric reinforced rubber composites

Journal of Engineered Fibers and Fabrics ◽

10.1177/15589250211065382 ◽

2021 ◽

Vol 16 ◽

pp. 155892502110653

Author(s):

Hongtao Zhou ◽

Weiqing Jiang ◽

Lei Zhao ◽

Guifu Li ◽

Bin Zhou ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Tensile Failure ◽

Woven Fabric ◽

Rubber Matrix ◽

Rubber Composites ◽

Stress Strain ◽

Element Analysis ◽

Angle Bisector ◽

Triaxial Woven Fabric

In this paper, the off-axis tensile behaviors of triaxial woven fabric reinforced rubber composites (TWFR) was studied experimentally and numerically. The tensile failure morphologies and stress-strain curves of specimens cut at seven different off-axis angles (0°, 15°, 30°, 45°, 60°, 75°, and 90°) were obtained by finite element analysis and experiment. The finite element analysis results were found to be in good agreement with the experimental results. Stress-strain curves indicated the TWFR exhibited nonlinear tensile behavior under off-axial tension loading, and could be divided into the coupling working stage of yarns and rubber matrix in TWFR, and the stressed stage of yarns. Similar tensile properties were observed for specimens cut along the direction of angle bisector of any two sets of adjacent yarns. The tensile failure morphologies indicated that the failure mechanism of TWFR was tensile-shear mixed failure.

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3D explicit finite element analysis of tensile failure behavior in adhesive-bonded composite single-lap joints

Composite Structures ◽

10.1016/j.compstruct.2018.05.134 ◽

2018 ◽

Vol 201 ◽

pp. 261-275 ◽

Cited By ~ 15

Author(s):

Jinxin Ye ◽

Ying Yan ◽

Jie Li ◽

Yang Hong ◽

Ziyang Tian

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Lap Joints ◽

Tensile Failure ◽

Failure Behavior ◽

Element Analysis ◽

Explicit Finite Element ◽

Single Lap Joints ◽

Explicit Finite Element Analysis ◽

Bonded Composite

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Effect of Matrix Hardening on Tensile Strength of Alumina-Fiber Reinforced Aluminum Matrix Composites

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.430.83 ◽

2010 ◽

Vol 430 ◽

pp. 83-99 ◽

Cited By ~ 1

Author(s):

T. Okabe ◽

M Nishikawa ◽

Nobuo Takeda ◽

Hideki Sekine

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Tensile Strength ◽

Stress Distribution ◽

Damage Evolution ◽

Aluminum Matrix ◽

Tensile Failure ◽

Alumina Fiber ◽

Element Analysis ◽

Fiber Damage

This paper examines the stress distribution around a fiber break in alumina-fiber reinforced aluminum matrix (Al2O3/Al) composites using finite element analysis and predicts the tensile strength using tensile failure simulations. In particular, we discuss the effect of the matrix hardening on the tensile failure of the Al2O3/Al composites. First, we clarify the differences in the stress distribution around a fiber break between an elastic-perfect plastic matrix and an elastic-plastic hardening matrix using finite element analysis. Second, the procedure for simulating fiber damage evolution in the Al2O3/Al composites is presented. The simulation incorporates the analytical solution for the axial fiber stress distribution of a broken fiber in the spring element model for the stress analysis of the whole composite. Finally, we conduct Monte Carlo simulations of fiber damage evolution to predict the tensile strength of the Al2O3/Al composites, and discuss the effect of matrix hardening on the tensile strength of the Al2O3/Al composites. Coupled with size-scaling analysis, the simulated results express the size effect on the strength of the composites, which is seen in experimental results.

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