Anisotropic fracture properties and crack path prediction in glass and cellulose fiber reinforced composites

Judt, Paul; Zarges, Jan-Christoph; Ricoeur, Andreas; Heim, Hans-Peter

doi:10.1016/j.engfracmech.2017.08.027

Cited by 23 publications

(28 citation statements)

References 41 publications

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“…These criteria were extended concerning phenomena such as crack path instability [4,5] and the anisotropy of fracture parameters [4]. Nevertheless, in the cases of anisotropic crack resistance parameters, large mode-II loading or unstable crack paths, the classical J-vector criterion fails.In this paper, an extended J-vector criterion is introduced providing the crack growth direction in the case of anisotropic fracture parameters and elastic constants [9,10]. The resulting deflection angles coincide well with those from other criteria in the case of small mixed-mode ratios KII/KI or deflection angles, respectively.…”

mentioning

confidence: 61%

“…In preliminary studies [10][11][12] these composites were characterized regarding their anisotropic elastic and fracture behavior. Composite materials e.g.…”

Section: Theory Of Crack Deflection In Anisotropic Materialsmentioning

confidence: 99%

“…Two material systems are considered, including PP with short glass fiber (GF) reinforcements (rigid) and with short regenerated cellulose fiber (RCF) reinforcements (limp). In preliminary studies [10][11][12] these composites were characterized regarding their anisotropic elastic and fracture behavior. A decisive difference of the crack resistances was observed, distinguishing between a predominant direction (PD) and a transverse direction (TD) of the material.…”

Section: Theory Of Crack Deflection In Anisotropic Materialsmentioning

confidence: 99%

“…In this paper, an extended J-vector criterion is introduced providing the crack growth direction in the case of anisotropic fracture parameters and elastic constants [9,10]. The theory is validated by experimental results for different anisotropy ratios and orientations.…”

mentioning

confidence: 99%

“…One challenge is the accurate calculation of the second coordinate J2 [8] and the appropriateness of this approach has been shown [9]. Nevertheless, in the cases of anisotropic crack resistance parameters, large mode-II loading or unstable crack paths, the classical J-vector criterion fails.In this paper, an extended J-vector criterion is introduced providing the crack growth direction in the case of anisotropic fracture parameters and elastic constants [9,10]. The theory is validated by experimental results for different anisotropy ratios and orientations.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Crack deflection in short fiber reinforced composites: Theory and experiment

Judt

Ricoeur

2019

Proc Appl Math and Mech

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In the past decades different crack growth and crack deflection criteria have been proposed, e.g. the maximum hoop stress criterion [1], the minimum strain energy density criterion [2] or the maximum energy release rate criterion [3]. These criteria were extended concerning phenomena such as crack path instability [4,5] and the anisotropy of fracture parameters [4]. Another approach for the prediction of crack growth and deflection angle is based on the J k -integral [6], assuming the crack to grow into the direction of the J-vector [7]. The resulting deflection angles coincide well with those from other criteria in the case of small mixed-mode ratios KII/KI or deflection angles, respectively. One challenge is the accurate calculation of the second coordinate J2 [8] and the appropriateness of this approach has been shown [9]. Nevertheless, in the cases of anisotropic crack resistance parameters, large mode-II loading or unstable crack paths, the classical J-vector criterion fails.In this paper, an extended J-vector criterion is introduced providing the crack growth direction in the case of anisotropic fracture parameters and elastic constants [9,10]. The theory is validated by experimental results for different anisotropy ratios and orientations.

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mentioning

confidence: 61%

“…In preliminary studies [10][11][12] these composites were characterized regarding their anisotropic elastic and fracture behavior. Composite materials e.g.…”

Section: Theory Of Crack Deflection In Anisotropic Materialsmentioning

confidence: 99%