Splitting initiation and propagation in notched unidirectional graphite/epoxy composites under tension-tension cyclic loading
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Cited by (11)
A continuum damage model for composite laminates: Part IV- Experimental and numerical tests
2021, Mechanics of MaterialsCitation Excerpt :The study of this type of notched specimens under fatigue loads has also become the subject of extensive experimental and numerical investigations. For example, the slot-shaped specimen representing severe damage inflicted by a service accident (Spearing and Beaumont, 1992; Spearing et al., 1992a, b), the DENT specimen (Hallett and Wisnom, 2005a, 2005b), or the OHT specimen to study the circular hole that is commonly cut into the laminates for fasteners, or to allow the pass of electrical and hydraulic lines (Aidi et al., 2015; Ambu et al., 2005; Aymerich and Found, 2000; Nixon-Pearson et al., 2013b; Nixon-Pearson and Hallett, 2015; Daken and Mar 1985; Hochard et al., 2013). This paper is organized as follows.
An explicit phase field model for progressive tensile failure of composites
2021, Engineering Fracture MechanicsEffect of milled notches on the strength of open hole, filled holes, single and double lap shear CFRP tension coupons
2020, Composite StructuresCitation Excerpt :This effect has been identified from an experimental point of view by many authors [8–21] and demonstrated by a test-calculation dialogue using different, mostly discrete, modeling strategies [22–29]. This explains the interest in this type of fatigue damage, which, in some cases, would allow an increase in residual resistance [13–21]. In addition, it has been shown [27] that, depending on the position of the plies in the thickness, this type of damage is favored and consequently the static resistance can be improved by about 10%.
Residual modulus degradation model for woven fabric composite determined by impulse excitation technique
2020, International Journal of FatigueCitation Excerpt :The longitudinal cracks appeared at the very first cycles for all studied stress ratios, reaching approximately 15 mm in length within the first thousand cycles, and propagating until stabilization. The cracks occurred by matrix splitting, which has been described in the literature for unidirectional composites under tensile static tests, [27,31,32], tractive and compressive fatigue tests [33–35]. Fig. 8 shows the crack growth on both sides of the hole as a function of the number of cycles.
Adaptive floating node method for modelling cohesive fracture of composite materials
2018, Engineering Fracture Mechanics