Acoustic Emission Studies on Irradiated Plastic-Copper Interfaces in Mode I at Room Temperature and at 77K

Humer, K.; Tschegg, E. K.; Platschka, R.; Weber, H.W.

doi:10.1007/978-1-4757-9059-7_8

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…The influence of low temperatures on mode I intrerlaminar fracture behaviour was investigated also by Humer et al [64]. The interface between fibre reinforced plastics and copper in the crack opening mode of deformation was studied, too.…”

Section: Fracture Studiesmentioning

confidence: 98%

Fracture in Composites - An Overview (Part I)

Rizov¹

2012

Journal of Theoretical and Applied Mechanics

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Abstract. An overview of the literature for the last twenty years on the fracture mechanics of unidirectional fibre reinforced polymer composites is presented. Pure mode (I, II, and III) as well as mixed mode longitudinal cracks (i.e., cracks that prolongate along the fibres) are considered mainly. It is shown that the strain energy released rate is the most widely used parameter for fracture toughness characterization. Various solutions for determination of the strain energy release rate in composites using linear-elastic fracture mechanics are presented. Studies on fracture in composite sandwich structures are reviewed, too. Some analyses of damages and their influence on fracture behaviour also are considered. Topical problems of composite fracture mechanics are formulated.

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Section: Fracture Studiesmentioning

confidence: 98%

Fracture in Composites - An Overview (Part I)

Rizov¹

2012

Journal of Theoretical and Applied Mechanics

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“…where K IIC (y) and K IIIC (y) are critical stress intensity factors distribution obtained using Equations (11) and (12) for each node at the delamination front. The values of K a IIC and K a IIIC were calculated by numerical integration and the results obtained at different temperatures are presented in Table III.…”

Section: Determination Of the Stress Intensity Factorsmentioning

confidence: 99%

“…Equations (11) and (12) were applied for each node at the delamination front in order to determine the critical stress intensity factors (once the critical strain energy release rate mode components were known). The obtained distribution of K IIC and K IIIC along the delamination front at room temperature, 77, 20, and 4 K is depicted in Figure 13.…”

Section: Determination Of the Stress Intensity Factorsmentioning

confidence: 99%

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Mode III Interlaminar Fracture Behavior of Glass Fiber Reinforced Polymer Woven Laminates at 293 to 4 K

et al. 2006

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This paper deals with mode III delamination properties of glass fiber reinforced polymer woven laminates at room temperature (293 K), liquid nitrogen temperature (77 K), gas helium temperature (20 K), and liquid helium temperature (4 K). In order to evaluate these properties, the Split Cantilever Beam (SCB) fracture test is performed. The load is applied to a test specimen through a set of identical grips in order to reduce (in some degree) the mode II loading at the free edges. A three-dimensional finite element analysis is used to study the stress and strain state of the specimens and to interpret the experimental measurements. The strain energy release rate is calculated by using the virtual crack closure technique. It is found that the strain energy release rate is dominated by the mode III component. A non-uniform distribution of the strain energy release rate along the delamination front is obtained with mode III component having maximum at the center of the delamination front, while mode II component increases towards the free edges. The strain energy release rate is also determined using the crack closure technique. A finite element analysis is also carried out to calculate the stress intensity factors for the SCB specimens. The fracture surfaces are examined by scanning electron microscopy to identify the fracture mechanisms. The most important conclusion from the present study is that at temperature lowering from 293 to 20 K the mode III fracture toughness increases, further cooling to 4 K produces a toughness decrease.

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Double Cantilever Beam Measurement and Finite Element Analysis of Cryogenic Mode I Interlaminar Fracture Toughness of Glass-Cloth/Epoxy Laminates

Shindo

Horiguchi

Wang³

et al. 2000

Journal of Engineering Materials and Technology

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An experimental and analytical investigation in cryogenic Mode I interlaminar fracture behavior and toughness of SL-E woven glass-epoxy laminates was conducted. Double cantilever beam (DCB) tests were performed at room temperature (R.T.), liquid nitrogen temperature (77 K), and liquid helium temperature (4 K) to evaluate the effect of temperature and geometrical variations on the interlaminar fracture toughness. The fracture surfaces were examined by scanning electron microscopy to verify the fracture mechanisms. A finite element model was used to perform the delamination crack analysis. Critical load levels and the geometric and material properties of the test specimens were input data for the analysis which evaluated the Mode I energy release rate at the onset of delamination crack propagation. The results of the finite element analysis are utilized to supplement the experimental data.

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Acoustic Emission Studies on Irradiated Plastic-Copper Interfaces in Mode I at Room Temperature and at 77K

Cited by 3 publications

References 10 publications

Fracture in Composites - An Overview (Part I)

Fracture in Composites - An Overview (Part I)

Mode III Interlaminar Fracture Behavior of Glass Fiber Reinforced Polymer Woven Laminates at 293 to 4 K

Double Cantilever Beam Measurement and Finite Element Analysis of Cryogenic Mode I Interlaminar Fracture Toughness of Glass-Cloth/Epoxy Laminates

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