A double edge notch specimen design for tension–compression fatigue crack growth testing

Narasimhachary, Santosh B.; Saxena, Ashok; Newman, J. C.

doi:10.1016/j.engfracmech.2012.05.014

Cited by 8 publications

(5 citation statements)

References 5 publications

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“…The essential work of the fracture testing methodology was carried out using a DENT specimen with an average width of 40 mm, as described in [12,70] (see Figure 7). The specimen DENT was selected according to the recommendations of [42,[71][72][73].…”

Section: Essential Work Of Fracture Testmentioning

confidence: 99%

A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material

et al. 2022

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In the present work, three different woven composite laminates were fabricated using the hand lay-up method. The woven reinforcement fibres were carbon fibres (CFRP), glass fibres (GFRP-W) and (GFRP-R) in combination with epoxy resin. Then, the central notch specimen tensile test (CNT) was used to measure the fracture toughness and the corresponding surface release energy (GIC). Then, the data were compared with the essential work of fracture (we) values based on the stored energy of the body to obtain a new standard fracture toughness test for composite laminates using relatively simple techniques. In addition to an extended finite element model, XFEM was implemented over a central notch specimen geometry to obtain a satisfactory validation of the essential work of fracture concepts. Therefore, the average values of (GIC) were measured with CNT specimens 25.15 kJ/m2, 32.5 kJ/m2 and 20.22 kJ/m2 for CFRP, GFRP-W and GFRP-R, respectively. The data are very close as the percentage error for the surface release energy measured by the two methods was 0.83, 4.6 and 5.16 for carbon, glass and random fibre composite laminates, respectively. The data for the fracture toughness of XFEM are also very close. The percentage error is 4.6, 5.25 and 2.95 for carbon, glass and random fibre composite laminates, respectively. Therefore, the fundamental work of the fracture concept is highly recommended as a fracture toughness test for composite laminates or quasi-brittle Material.

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Section: Essential Work Of Fracture Testmentioning

confidence: 99%

A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material

et al. 2022

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“…The fracture behavior of the studied systems was characterized by two different parameters. The crack initiation resistance was quantified by the critical stress intensity factor (K IC ) parameter as follows [22,23]:…”

Section: Quasi-static Fracture Testsmentioning

confidence: 99%

Mechanical evaluation of polymeric filaments and their corresponding 3D printed samples

Oviedo¹,

Puente

Bernal

et al. 2020

Polymer Testing

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“…A DENT specimen with width 40 mm according to [22,40] was tested, as shown in Fig. 1, until complete failure in a universal testing machine (model machine WDW-100) of a maximum capacity of 20 kN.…”

Section: Essential Work Of Fracture Testmentioning

confidence: 99%

Essential work of fracture assessment for thin aluminium strips using finite element analysis

Abdellah

2017

Engineering Fracture Mechanics

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A double edge notch specimen design for tension–compression fatigue crack growth testing

Cited by 8 publications

References 5 publications

A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material

A Comparative Study to Evaluate the Essential Work of Fracture to Measure the Fracture Toughness of Quasi-Brittle Material

Mechanical evaluation of polymeric filaments and their corresponding 3D printed samples

Essential work of fracture assessment for thin aluminium strips using finite element analysis

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