Application of the modified Mohr–Coulomb fracture criterion in predicting the ballistic resistance of 2024-T351 aluminum alloy plates impacted by blunt projectiles

Xiao, Xinke; Pan, Hao; Bai, Yuanli; Lou, Yanshan; Chen, Lin

doi:10.1016/j.ijimpeng.2018.09.015

Cited by 59 publications

(22 citation statements)

References 55 publications

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“…16 2012applied the J-C model to numerical analysis of drop object fracture experiment and derived material constants. (Li et al, 2010;Dunand and Mohr, 2011;Algarni et al, 2017;Xinke et al, 2019). Eq.…”

Section: Theoretical Background 21 Stress State Parametersmentioning

confidence: 99%

Comparative Study on Various Ductile Fracture Models for Marine Structural Steel EH36

Park

Lee²,

Cerik

et al. 2019

J. Ocean Eng. Technol.

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It is important to obtain reasonable predictions of the extent of the damage during maritime accidents such as ship collisions and groundings. Many fracture models based on different mechanical backgrounds have been proposed and can be used to estimate the extent of damage involving ductile fracture. The goal of this study was to compare the damage extents provided by some selected fracture models. Instead of performing a new series of material constant calibration tests, the fracture test results for the ship building steel EH36 obtained by Park et al. (2019) were used which included specimens with different geometries such as central hole, pure shear, and notched tensile specimens. The test results were compared with seven ductile fracture surfaces: Johnson-Cook, Cockcroft-Latham-Oh, Bai-Wierzbicki, Modified Mohr-Coulomb, Lou-Huh, Maximum shear stress, and Hosford-Coulomb. The linear damage accumulation law was applied to consider the effect of the loading path on each fracture surface. The Swift-Voce combined constitutive model was used to accurately define the flow stress in a large strain region. The reliability of these simulations was verified by the good agreement between the axial tension force elongation relations captured from the tests and simulations without fracture assignment. The material constants corresponding to each fracture surface were calibrated using an optimization technique with the minimized object function of the residual sum of errors between the simulated and predicted stress triaxiality and load angle parameter values to fracture initiation.

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Section: Theoretical Background 21 Stress State Parametersmentioning

confidence: 99%

Comparative Study on Various Ductile Fracture Models for Marine Structural Steel EH36

Park

Lee²,

Cerik

et al. 2019

J. Ocean Eng. Technol.

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“…Because the conversion formula from engineering stress to true stress is no longer applicable after necking [14], the true stress-true strain curve before necking is used to fit using Origin to obtain B � 583.1 MPa, C � 454.3 MPa, and β � 1.…”

Section: Calibration Of Quasistatic Itemmentioning

confidence: 99%

“…In the expression, V i is the projectile initial velocity, V r is the projectile's residual velocity after penetrating the target plates, V bl is the ballistic limit velocity, and a and p are the model parameters. According to Equation (14), the method of least square is used to t the test data to get V bl 280.88 m/s, a 0.53, and p 3.11; the tting results are shown in Figure 8.…”

Section: Ballistic Test Of Q235b Steelmentioning

confidence: 99%

“…Lin [11,12] focused on the mechanical properties of Q235B steel with different strain rates, temperatures, and stress triaxialities and modified softening term in the J-C model. Xiao [13,14] conducted Taylor impact tests on aluminum alloy 2024-T351 and studied the effect of Lode parameters on its fracture behavior. Li [15] also carried out Taylor impact tests on aluminum alloy 6061-T6511H and performed numerical simulations using Abaqus software based on the modified J-C constitutive model, modified J-C fracture criterion, and Lou fracture criterion.…”

Section: Introductionmentioning

confidence: 99%

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Research on M‐Paul Dynamic Constitutive Relation of Q235B Steel

Lin

Huang

Xiao

et al. 2019

Advances in Civil Engineering

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In recent years, terrorist attacks and regional conflicts have increased and research on the resistance of building structures has been more highlighted. Q235B is a commonly used steel type in building structures, and there is an urgent need for research on its dynamic material properties. In this paper, Paul constitutive model was calibrated based on the material properties of Q235B steel. Based on the obtained results, it was found that the original model was not able to take into account temperature-softening effect. Therefore, a temperature-softening parameter was added into the temperature term of the original Paul model, and the modified M-Paul constitutive model was developed. Then, numerical prediction results obtained from Q235B steel penetration experiments using J-C (Johnson–Cook) and M-Paul constitutive models were compared. It was observed that J-C constitutive model significantly overestimated ballistic limit while estimations obtained from M-Paul constitutive model were closer to experimental results. This observation verified the correctness and effectiveness of M-Paul model and established a solid foundation for relevant research works on the impact resistance of building structures.

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“…A new model with stress triaxiality and Lode angle considering both necking and fracture is proposed by Pack and Mohr (2017) based on Hosford–Coulomb model. Xiao et al. (2019) proposed a more widely applicable uncoupled damage model by adding the influence of strain rate and temperature to the MMC model, which is applied to study the impact resistance of metal plates.…”

Section: Introductionmentioning

confidence: 99%

Comparison of two uncoupled ductile damage initiation models applied to DP900 steel sheet under various loading paths

Tuo

Yue

Zhuang

et al. 2020

International Journal of Damage Mechanics

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Accurate prediction of the fracture occurrence of high strength materials is always the hot spot in the research field of metal-forming process. Appropriate material model is the key issue which can accurately describe the mechanical forming behavior under different forming conditions. However, advanced fully coupled damage/behavior models are heavy to use by engineers and have a high cost in term of calculation consuming time. In this paper, a simple uncoupled damage approach, designed to be easy to use for engineers and accurate as well, is investigated. Two uncoupled damage models, which consider the effect of the Lode angle and the hydrostatic pressure, combing three typical hardening rules, are selected and applied to the damage prediction of DP900 dual-phase steel. The hardening properties and forming limit strains under different loading paths of DP900 are investigated and studied throughout a variety of mechanical experiments, including the uniaxial tensile test, the pre-notched tensile tests with three notched radii, and the butterfly tests. Finally, the prediction accuracy of the used models for DP900 is compared and discussed.

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Application of the modified Mohr–Coulomb fracture criterion in predicting the ballistic resistance of 2024-T351 aluminum alloy plates impacted by blunt projectiles

Cited by 59 publications

References 55 publications

Comparative Study on Various Ductile Fracture Models for Marine Structural Steel EH36

Comparative Study on Various Ductile Fracture Models for Marine Structural Steel EH36

Research on M‐Paul Dynamic Constitutive Relation of Q235B Steel

Comparison of two uncoupled ductile damage initiation models applied to DP900 steel sheet under various loading paths

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