Biaxial Tensile Strength Characterization of Textile Composite Materials

Escárpita, David Alejandro Arellano; Cárdenas, Diego; Elizalde, Hugo; Ramirez, Ricardo; Probst, Oliver

doi:10.5772/48105

Cited by 17 publications

(14 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Biaxial testing has been employed for a long time for the study of a variety of engineering materials, including fiber reinforced composites [1,2], plastic fabrics [3], sheet metals [4], elastomers and rubbers [5,6], or polymers [7,8]. This type of test has also gained considerable diffusion in the field of biomechanics and biomedical engineering, emerging as a primary technique for mechanical characterization of anisotropic, hyperelastic, and heterogeneous materials such as soft biological tissues [9][10][11] or biomaterials for their substitution or repair [12,13].…”

Section: Introductionmentioning

confidence: 99%

Integrated Experimental and Numerical Comparison of Different Approaches for Planar Biaxial Testing of a Hyperelastic Material

Avanzini

Battini

2016

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Planar biaxial testing has been applied to a variety of materials to obtain relevant information for mechanical characterization and constitutive modeling in presence of complex stress states. Despite its diffusion, there is currently no standardized testing procedure or a unique specimen design of common use. Consequently, comparison of results obtained with different configurations is not always straightforward and several types of optimized shapes have been proposed. The purpose of the present work is to develop a procedure for comprehensive comparison of results of biaxial tests carried out on the same soft hyperelastic material, using different types of gripping methods and specimen shapes (i.e., cruciform and square). Five configurations were investigated experimentally using a biaxial test rig designed and built by the authors, using digital imaging techniques to track the displacements of markers apposed in selected positions on the surfaces. Then, material parameters for a suitable hyperelastic law were determined for each configuration examined, employing an inverse method which combines numerical simulations with the finite element method (FEM) and optimization algorithms. Finally, efficiency of examined biaxial configurations was assessed comparing stress reductions factor, degree and uniformity of biaxial deformation, and operative strain ranges.

show abstract

Section: Introductionmentioning

confidence: 99%

Integrated Experimental and Numerical Comparison of Different Approaches for Planar Biaxial Testing of a Hyperelastic Material

Avanzini

Battini

2016

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…It should be noted that if the specimen is not allowed to deform in a symmetric manner due to boundary constraints which arise from the type of biaxial rig used, then the gauge region will see some shear stress introduced. This point further reinforces the need for a biaxial rig to be used that does not result in a displacement field which is asymmetric due to the undesired shear stress which results 8 .…”

Section: Specimen Design Cmentioning

confidence: 60%

“…Majority of the gauge region has a shear stress close to zero, which is a characteristic stated by others 8 , where the specimen design must be able to generate a homogeneous stress and strain field in a predefined gauge zone.…”

Section: Specimen Design Cmentioning

confidence: 94%

“…FEA analysis has greatly assisted in fine tuning such designs. Reducing the gauge section of specimen has been proposed by others, as the thinning down localizes the deformation within the gauge region 8 . The thickness of the gauge region relative to the rest of the specimen is one of the most important factors to influence failure within this region, and will be investigated through FEA.…”

Section: Design Of a Biaxial Specimenmentioning

confidence: 99%

“…These include; failure under unidirectional tension [2][3][4] , unidirectional compression 3 , shear, torsion 5,6 , and a few combinations of loading 5 . However the presence of biaxial tension related tests is quite difficult to find, along with the experimental techniques required to extract them 7,8 . In this paper, the authors present a specimen design that has been shown to overcome issues related to specimen design.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a Flat Plate Specimen Suitable for Biaxial Tensile Tests on Polymer Materials

Chowdhury

Wang

Chiu

2015

Polymers and Polymer Composites

View full text Add to dashboard Cite

Since the introduction of fibre-reinforced polymer composites there has been a surge in the use of adhesives for joints and repairs, and polymer resins as the matrix material for fibre-reinforced composites. The failure mechanisms of these materials have been studied by many researchers; however, there is little accurate experimental data under tension-tension loading published. This is due to the lack of a standard specimen design to perform these tests. The authors propose a flat plate specimen design that has been shown to overcome some of the difficulties presented in literature. A series of tests with this specimen configuration were conducted under varying biaxial loading conditions. The results are plotted in the tension-tension quadrant of the materials failure envelope. For the two polymer materials tested; a linear truncation within the first quadrant of the failure envelope was found.

show abstract