Fracture testing and finite element modeling of pure titanium

Paulino, Gláucio H.; Carpenter, R. D.; Liang, Weizhang; Munir, Zuhair A.; Gibeling, J.C.

doi:10.1016/s0013-7944(01)00018-2

Cited by 11 publications

(4 citation statements)

References 12 publications

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“…At the critical configuration, the crack will not propagate from the offset notch tip, but it will nucleate and initiate at the center region of the specimen. This important investigation is under consideration by the authors [31] and is a subject for future studies. The specimen was instrumented with crack detection gages at the notch tip (19 mm), 43 mm, and 72 mm from the bottom of the beam.…”

Section: Mixed-mode Fracturementioning

confidence: 98%

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Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures

Wagoner¹,

Buttlar²,

Paulino³

2005

Journal of Testing and Evaluation

158

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This paper describes the development of a fracture test for determining the fracture energy of asphalt concrete. The test will be used in combination with numerical analysis and field studies to obtain a better understanding of the mechanisms of reflective cracking in asphalt concrete overlays. A review of the literature revealed that a single-edge notched beam (SE(B)) test specimen was the most promising fracture test for the objectives of the reflective cracking study. Existing servohydraulic testing equipment was modified to perform the SE(B) test along with new loading fixtures, sensors, data collection, and analysis procedures. Preliminary tests were conducted to develop test procedures, to obtain a better understanding of crack-front characteristics, to investigate test repeatability, to examine variations of fracture energy with temperature, and to investigate mixed-mode fracture. The results from the tests follow expected trends and test variability appears to be within a range typical for asphalt concrete fracture testing.

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Section: Mixed-mode Fracturementioning

confidence: 98%

“…ous experience with such tests [31]. The following sections describe the development of the specimen preparation, loading fixtures, test procedures, and analysis.…”

Section: Test Developmentmentioning

confidence: 99%

Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures

Wagoner¹,

Buttlar²,

Paulino³

2005

Journal of Testing and Evaluation

158

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“…Table 2 lists the material properties of TiB and Ti -data from Carpenter et al (1999), Paulino et al (2001), Jin et al (2003). The elastic-plastic material properties within the TiB/Ti FGM specimens are estimated by the TTO model of Tamura et al (1973) -(see Jin et al, 2003 and for more details).…”

Section: Tib/ti Fracture Specimen Geometries Materials and Fe Modelsmentioning

confidence: 99%

“…Jin et al (2003) discussed the details on the calibration procedure for the six cohesive parameters for the exponential cohesive zone model. They calibrated the cohesive parameters for a TiB/Ti FGM using experimental load versus crack extension responses for both Ti metal (Paulino et al, 2001) and TiB/Ti FGM SE(B) specimens (Carpenter et al, 1999). Based on these results, the parameters are calibrated for the bilinear cohesive zone models in the present study.…”

Section: Determination Of Cohesive Parametersmentioning

confidence: 99%

J resistance behavior in functionally graded materials using cohesive zone and modified boundary layer models

2006

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This paper describes elastic-plastic crack growth resistance simulation in a ceramic/metal functionally graded material (FGM) under mode I loading conditions using cohesive zone and modified boundary layer (MBL) models. For this purpose, we first explore the applicability of two existing, phenomenological cohesive zone models for FGMs. Based on these investigations, we propose a new cohesive zone model. Then, we perform crack growth simulations for TiB/Ti FGM SE(B) and SE(T) specimens using the three cohesive zone models mentioned above. The crack growth resistance of the FGM is characterized by the J -integral. These results show that the two existing cohesive zone models overestimate the actual J value, whereas the model proposed in the present study closely captures the actual fracture and crack growth behaviors of the FGM. Finally, the cohesive zone models are employed in conjunction with the MBL model. The two existing cohesive zone models fail to produce the desired K-T stress field for the MBL model. On the other hand, the proposed cohesive zone model yields the desired K-T stress field for the MBL model, and thus yields J R curves that match the ones obtained from the SE(B) and SE(T) specimens. These results verify the application of the MBL model to simulate crack growth resistance in FGMs.

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Fracture Mechanics of Functionally Graded Materials

Jin

2003

Advances in Mechanics and Mathematics

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Fracture testing and finite element modeling of pure titanium

Cited by 11 publications

References 12 publications

Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures

Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures

J resistance behavior in functionally graded materials using cohesive zone and modified boundary layer models

Fracture Mechanics of Functionally Graded Materials

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