Verification of reinforcement isotropic solid model in conjunction with maximum shear stress criterion to anticipate mixed mode I/II fracture of composite materials

Shahsavar, Sadra; Fakoor, Mahdi; Berto, Filippo

doi:10.1007/s00707-020-02810-8

Cited by 10 publications

(2 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fracture criteria for isotropic and orthotropic materials are classified into three categories based on energy, stress, and strain. To understand accurately the fracture behavior of orthotropic materials under mixed-mode I / II loading, new criteria based on the maximum tangential stress [36][37][38][39][40][41], minimum strain energy density [20,[42][43][44][45][46][47][48][49], and maximum strain energy release rate [50][51][52][53][54][55][56][57], maximum shear stress [58][59][60], and maximum tangential strain [61][62][63][64] criteria were presented.…”

Section: Introductionmentioning

confidence: 99%

Presentation of a new wood test specimen to investigate the fracture behavior of orthotropic materials under mixed-mode I/II loading

Fakoor

Khali

2022

Preprint

Self Cite

View full text Add to dashboard Cite

In this paper, a new test specimen as "Center Notched Disk Tension (CNDT)" to study mode I and II stress intensity factors (SIF’s) in orthotropic materials is presented. In the field of Fracture Mechanics, mode I and II SIF’s play an important role to describe the stress distribution. In CNDT specimens, for crack along the fibers, mode mixity is created by changing the loading direction. Also, by changing the crack-fibers direction for the desired crack-load, various mode mixity can be created. For desired crack-fiber angle, by changing the loading share, different mode mixities are created. Thus, the crack kink changes the loading shares. In this analysis, a comprehensive study is performed on the influence of crack-fibers orientation and crack-loading direction on SIF’s. For the first time, SIF’s are presented for cracked orthotropic specimens in different crack-fibers and crack-loading directions. SIF’s are estimated using the Finite Element Method (FEM). The presented specimen is standardized using a unite load in different directions. The crack length is assumed to be constant. Analytical relationships are also presented for the crack tip parameters in mode I and II. Pure mode I and II conditions are investigated based on SIF’s. Due to the difficulty of establishing pure mode II conditions, it is possible to establish pure mode II conditions at certain crack-fiber and load-crack angles. In these situations, mode II SIF’s can be extracted. The obtained results are validated using reported results in the literature.

show abstract

Section: Introductionmentioning

confidence: 99%

Presentation of a new wood test specimen to investigate the fracture behavior of orthotropic materials under mixed-mode I/II loading

Fakoor

Khali

2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Because the matrix is weaker than the fibers, the crack propagates along the fibers. Based on the RIS concept and ReSt coefficients in Eqs ( 4)-( 6), the stress state at the crack tip in orthotropic materials is [87]: σ Orth…”

mentioning

confidence: 99%

Applying the new experimental midpoint concept on strain energy density for fracture assessment of composite materials

Khaji

Fakoor

Farid

et al. 2022

Theoretical and Applied Fracture Mechanics

Self Cite

View full text Add to dashboard Cite

Mixed-mode fracture assessment of wooden structures with cracks initiated along and across the fibers considering non-singular T-stress term

2022

View full text Add to dashboard Cite

Verification of reinforcement isotropic solid model in conjunction with maximum shear stress criterion to anticipate mixed mode I/II fracture of composite materials

Cited by 10 publications

References 56 publications

Presentation of a new wood test specimen to investigate the fracture behavior of orthotropic materials under mixed-mode I/II loading

Presentation of a new wood test specimen to investigate the fracture behavior of orthotropic materials under mixed-mode I/II loading

Applying the new experimental midpoint concept on strain energy density for fracture assessment of composite materials

Mixed-mode fracture assessment of wooden structures with cracks initiated along and across the fibers considering non-singular T-stress term

Contact Info

Product

Resources

About