Full-field analysis of shear test on 3D orthogonal woven C/C composites

Qin, Lijun; Zhang, Zhongwei; Li, Xiaofeng; Yang, Xiaoguang; Feng, Zhihai; Wang, Yang; Miao, Hong; He, Li; Gong, Xinglong

doi:10.1016/j.compositesa.2011.11.006

Cited by 33 publications

(18 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Qin et al [27] evaluated a three-dimensional woven material with an orthogonal architecture. Digital image correlation was used with the Iosipescu shear fixture.…”

Section: In-plane Shearmentioning

confidence: 99%

Experimental investigation of three-dimensional woven composites

Warren

Lopez-Anido

Goering

2015

Composites Part A: Applied Science and Manufacturing

100

View full text Add to dashboard Cite

“…Qin et al [27] evaluated a three-dimensional woven material with an orthogonal architecture. Digital image correlation was used with the Iosipescu shear fixture.…”

Section: In-plane Shearmentioning

confidence: 99%

Experimental investigation of three-dimensional woven composites

Warren

Lopez-Anido

Goering

2015

Composites Part A: Applied Science and Manufacturing

100

View full text Add to dashboard Cite

“…Then, the binaryzation image of the mapping is obtained through adaptive threshold segmentation, where the strain lower than 0.01 is set to 0 (blue regions) and the strain larger than 0.01 is set to 1 (red regions). Based on our previous study [23], the in-plane shear strain limit of 3D-C/ Cs is *0.01. Thus, the red regions are considered as the damage zone.…”

Section: Influence Of Shear Damages On the Tensile Behaviormentioning

confidence: 95%

Carbon–Carbon Composites

Balasubramanian¹

2013

Composite Materials and Processing

View full text Add to dashboard Cite

Carbon fiber reinforced carbon matrix composites (C/Cs), as important candidate aviation and aerospace materials, have good prospects for application in extreme environments. However, notch effects of C/Cs have not been studied adequately. In this work, the notch effects of 3D-C/C composites were investigated by the full-field measurement digital image correlation method. Six kinds of specimens with different notch patterns including one central hole, multiholes, and double edge notches, were examined to analyze their mechanical properties. The tests were carried out on MTS 809 testing machine and the deformations of specimens were monitored by a CCD camera. Using the full-field measurement, both the local mechanical properties (stress concentration, shear damage, and fracture behavior) and the globe properties (notch sensitivity and tensile behavior) were studied. The results indicated that the fracture stress on the net cross section was constant and it was independent on the material heterogeneity, notch patterns, and notch depth.

show abstract

“…Qin at el [14] used full field digital image correlation (DIC) technique (see [28][29][30] for details of DIC technique) with ASTM D5379 / D5379M-12 [23] to study the shear strain field and for measuring the shear modulus in orthogonally woven 3D C/C composites. They observed that the in-plane shear modulus could not be measured reliably due to the non-uniformity of strain field.…”

Section: Tensile Testingmentioning

confidence: 99%

“…This has not been very successful because the micro-structural unit cell of 3D-FRPC is fundamentally different from 2D-FRPC due to the presence of out of plane reinforcement and thus the stress field is much more inhomogeneous and the stress state achieved in the 3D-FRPC during the desired standard test may not be same as the stress state achieved for the 2D laminated composites (see for example ref. [10,[12][13][14][15]). In addition, the failure modes achieved may not be the same as the desired one (e.g.…”

Section: Introductionmentioning

confidence: 99%

Challenges in Compression Testing of 3D Angle-Interlocked Woven-Glass Fabric-Reinforced Polymeric Composites

Shah¹,

Choudhry

Khan³

2017

Journal of Testing and Evaluation

View full text Add to dashboard Cite

This paper describes the challenges in using testing standards such as D6641/D6641M-14, for determination of compressive strength of 3D angle interlocked glass fabric reinforced polymeric composites (3D-FRPC). It makes use of both experimental investigation and finite element analysis. The experimental investigation involved testing both 2D and 3D-FRPC using ASTM D6641/D6641M-14 and subsequent scanning electron microscopic imaging of failed specimens to reveal the stress state at failure. This was further evaluated using laminate level finite element (FE) analysis. The FE analysis required input of effective orthotropic elastic material properties of 3D-FRPC, which were determined by customizing a recently developed micro-mechanical model. The paper sheds new light on compressive failure of 3D angle interlocked glass fabric composites, as only scarce data is available in literature about this class of materials. It showed that although the tests produce acceptable strength values the internal failure mechanisms change significantly and the standard deviation (SD) and coefficient of variance (COV) of 3D-FRPC comes out to be much higher than that of 2D-FRPC. Moreover, while reporting and using the test data some additional information about the 3D-fabric architecture, such as the direction of angle interlocking fabric needs to be specified. This was because, for 3D angle interlocking of fabric along warp direction, the strength values obtained in the warp and weft direction were significantly different from each other. The study also highlights that due to complex weave architecture it is not possible to achieve comparable volume fractions with 2D and 3D fabric reinforced composites using similar manufacturing parameters for the vacuum assisted resin infusion process. Thus, the normalized compressive strength values (normalized with respect to volume fraction) are the highest for 3D-FRPC when measured along the warp direction, they are at an intermediate level for 2D-FRPC and the lowest for 3D-FRPC, when measured in the weft direction.

show abstract

Full-field analysis of shear test on 3D orthogonal woven C/C composites

Cited by 33 publications

References 52 publications

Experimental investigation of three-dimensional woven composites

Experimental investigation of three-dimensional woven composites

Carbon–Carbon Composites

Challenges in Compression Testing of 3D Angle-Interlocked Woven-Glass Fabric-Reinforced Polymeric Composites

Contact Info

Product

Resources

About