A simple fracture mechanics based Charpy-V impact energy criterion for plastic collapse

Wallin, Kim

doi:10.1016/j.engfracmech.2020.107247

Cited by 8 publications

(22 citation statements)

References 4 publications

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“…al., 2010). Design methods based on Charpy impact tests often provide solutions to avoid brittle fracture (Wallin, et. al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Karbon/epoksi ve E-cam/epoksi ile Onarılmış Çentikli Alüminyum 5754-H111 Charpy Darbe Tepkisi

Dindar¹,

Ağir²

2021

European Journal of Science and Technology

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In this study, aluminum sheets with three different notch depths were repaired with carbon/epoxy and e-glass/epoxy composites and than were investigated experimentally for their response to Charpy impact. [90/45/-45] oriented triaxial fabrics were used in patch reinforcement materials. Composite laminates were prepared in [90/45/-45/45/-45/90] orientation by placing these three axial fabrics on top each other. Hand lay-up technique was used in the preparation of laminated composites. The reinforcement fabrics wetted by hand lay-up were cured by hot molding at 100 °C and 7 bar pressure. Composite plates were produced in 40x40 cm dimensions. Aluminum plates were also provided in 40x40 cm dimensions. Both aluminum and composites were cut with water jet to obtain samples and patches from these plates. The aluminum and composite elements cut to the desired dimensions, were glued to each other on oneside with a double component methyl methacrylate adhesive. In the experimental stage, some mechanical properties of the composites were determined first. Afterwards, the energy absorption capacities of the aluminum plates as repaired and unrepaired in three different notch lengths (3 mm, 5 mm, 7 mm), was determined by conducting Charpy notch impact tests. In addition, Scanning Electron Microscope (SEM) analysis of the composite patches were performed. This study, which was conducted to determine to what extend the composite patches affect the notch impact toughness of the aluminum plate, aims to be a guiding resource for engineers and researchers for composite patch repairs.

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“…al., 2010). Design methods based on Charpy impact tests often provide solutions to avoid brittle fracture (Wallin, et. al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Karbon/epoksi ve E-cam/epoksi ile Onarılmış Çentikli Alüminyum 5754-H111 Charpy Darbe Tepkisi

Dindar¹,

Ağir²

2021

European Journal of Science and Technology

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“…In a recent publication, a simple criterion for plastic collapse was developed based on the K r /L r ratio [1]. It postulates that if the K r /L r ratio is less than 0.4, the failure will be controlled by plastic collapse.…”

Section: Introductionmentioning

confidence: 99%

“…It postulates that if the K r /L r ratio is less than 0.4, the failure will be controlled by plastic collapse. K r represents the ratio between the elastic crack driving force and the material's fracture toughness, corresponding to a specific fracture definition [1]. L r represents the ratio between primary load and plastic limit load corresponding to yield strength [1].…”

Section: Introductionmentioning

confidence: 99%

“…K r represents the ratio between the elastic crack driving force and the material's fracture toughness, corresponding to a specific fracture definition [1]. L r represents the ratio between primary load and plastic limit load corresponding to yield strength [1]. The function relating K r to L r represents the reciprocal of a plasticity correction on the elastic crack driving force.…”

Section: Introductionmentioning

confidence: 99%

“…When the requirement is fulfilled, the likelihood of reaching the plastic limit load is high. In the original publication [1], there was a lack of experimental validation of the developed requirement. The goal of this work was to validate the requirement using actual test data.…”

Section: Introductionmentioning

confidence: 99%

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CC(T) Specimen Load-Bearing Capacity Related to Yield Strength and Upper-Shelf Charpy-V Energy

Wallin¹

2021

Applied Mechanics

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The load-bearing capacity of a CC(T) specimen (Center-Cracked Tension) in the ductile fracture regime is usually controlled by plastic collapse. If the material’s tearing resistance is sufficiently low, the load-bearing capacity can drop below the plastic collapse value. Here, a recently developed simple fracture mechanics-based Charpy-V impact energy criterion for plastic collapse was used to provide a best estimate assessment of the CC(T) specimen load-bearing capacity.

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Effect of strain aging on mechanical properties and engineering critical assessment of X80 girth weld metal

Wang,

Di,

Dai

et al. 2023

International Journal of Pressure Vessels and Piping

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A simple fracture mechanics based Charpy-V impact energy criterion for plastic collapse

Cited by 8 publications

References 4 publications

Karbon/epoksi ve E-cam/epoksi ile Onarılmış Çentikli Alüminyum 5754-H111 Charpy Darbe Tepkisi

Karbon/epoksi ve E-cam/epoksi ile Onarılmış Çentikli Alüminyum 5754-H111 Charpy Darbe Tepkisi

CC(T) Specimen Load-Bearing Capacity Related to Yield Strength and Upper-Shelf Charpy-V Energy

Effect of strain aging on mechanical properties and engineering critical assessment of X80 girth weld metal

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